./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix039.oepc.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_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix039.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB --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 42c5ff0d69642601057eb29fc7d78b67af5ab0b43644460199f4561abe049d3b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:22:05,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:22:05,484 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 02:22:05,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:22:05,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:22:05,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:22:05,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:22:05,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:22:05,533 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:22:05,533 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:22:05,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:22:05,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:22:05,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:22:05,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:22:05,535 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:22:05,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:22:05,536 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:22:05,537 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:22:05,537 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:22:05,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:05,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:05,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:05,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:05,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:22:05,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:05,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:05,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:05,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:05,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:22:05,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:22:05,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:22:05,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:22:05,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:22:05,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:22:05,540 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:22:05,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:22:05,540 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_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 42c5ff0d69642601057eb29fc7d78b67af5ab0b43644460199f4561abe049d3b [2024-11-28 02:22:05,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:22:05,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:22:05,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:22:05,891 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:22:05,891 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:22:05,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix039.oepc.i [2024-11-28 02:22:08,788 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/data/00aec8401/c52ac3a3c9294d48bcf318f7415f322c/FLAG9225e1872 [2024-11-28 02:22:09,168 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:22:09,169 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/sv-benchmarks/c/pthread-wmm/mix039.oepc.i [2024-11-28 02:22:09,187 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/data/00aec8401/c52ac3a3c9294d48bcf318f7415f322c/FLAG9225e1872 [2024-11-28 02:22:09,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/data/00aec8401/c52ac3a3c9294d48bcf318f7415f322c [2024-11-28 02:22:09,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:22:09,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:22:09,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:09,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:22:09,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:22:09,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:09" (1/1) ... [2024-11-28 02:22:09,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209f10b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:09, skipping insertion in model container [2024-11-28 02:22:09,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:09" (1/1) ... [2024-11-28 02:22:09,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:22:10,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:10,035 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:22:10,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:10,196 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:22:10,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10 WrapperNode [2024-11-28 02:22:10,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:10,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:10,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:22:10,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:22:10,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,254 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-11-28 02:22:10,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:10,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:22:10,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:22:10,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:22:10,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,296 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:22:10,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,319 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:22:10,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:22:10,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:22:10,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:22:10,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (1/1) ... [2024-11-28 02:22:10,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:10,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:10,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:22:10,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a5a3a8-f864-4ab9-bbf0-4d27d9aa50c5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:22:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 02:22:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:22:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 02:22:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 02:22:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 02:22:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 02:22:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 02:22:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 02:22:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 02:22:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 02:22:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:22:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 02:22:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:22:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:22:10,427 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 02:22:10,623 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:22:10,625 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:22:11,070 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:22:11,070 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:22:11,361 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:22:11,361 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:22:11,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:11 BoogieIcfgContainer [2024-11-28 02:22:11,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:22:11,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:22:11,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:22:11,371 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:22:11,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:22:09" (1/3) ... [2024-11-28 02:22:11,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34feaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:11, skipping insertion in model container [2024-11-28 02:22:11,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:10" (2/3) ... [2024-11-28 02:22:11,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34feaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:11, skipping insertion in model container [2024-11-28 02:22:11,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:11" (3/3) ... [2024-11-28 02:22:11,374 INFO L128 eAbstractionObserver]: Analyzing ICFG mix039.oepc.i [2024-11-28 02:22:11,393 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:22:11,395 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix039.oepc.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-28 02:22:11,397 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:22:11,487 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:22:11,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-28 02:22:11,586 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-28 02:22:11,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:22:11,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-28 02:22:11,598 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-28 02:22:11,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-28 02:22:11,614 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:22:11,630 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;@6d2dfc19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:22:11,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 02:22:11,639 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:22:11,641 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-28 02:22:11,641 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:22:11,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:22:11,642 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 02:22:11,642 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 02:22:11,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:11,649 INFO L85 PathProgramCache]: Analyzing trace with hash 13010806, now seen corresponding path program 1 times [2024-11-28 02:22:11,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:11,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316310249] [2024-11-28 02:22:11,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:11,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:12,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:12,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316310249] [2024-11-28 02:22:12,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316310249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:12,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:12,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:22:12,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116107512] [2024-11-28 02:22:12,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:12,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:12,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:12,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:12,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:12,300 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-28 02:22:12,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:12,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:22:12,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-28 02:22:12,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:22:13,946 INFO L124 PetriNetUnfolderBase]: 3311/5215 cut-off events. [2024-11-28 02:22:13,946 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-28 02:22:13,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9895 conditions, 5215 events. 3311/5215 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 33468 event pairs, 2177 based on Foata normal form. 288/5439 useless extension candidates. Maximal degree in co-relation 9883. Up to 3661 conditions per place. [2024-11-28 02:22:13,998 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-11-28 02:22:13,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-11-28 02:22:14,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:14,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:22:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-28 02:22:14,015 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-11-28 02:22:14,017 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-11-28 02:22:14,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-11-28 02:22:14,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 02:22:14,030 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-28 02:22:14,034 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-28 02:22:14,037 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-28 02:22:14,040 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-28 02:22:14,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:14,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:22:14,040 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:14,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:22:14,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 02:22:14,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:14,043 INFO L85 PathProgramCache]: Analyzing trace with hash -947079504, now seen corresponding path program 1 times [2024-11-28 02:22:14,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:14,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429333361] [2024-11-28 02:22:14,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:14,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:14,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:14,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:14,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429333361] [2024-11-28 02:22:14,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429333361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:14,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:14,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:22:14,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597503892] [2024-11-28 02:22:14,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:14,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:14,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:14,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:14,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:14,248 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-28 02:22:14,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:14,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:22:14,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-28 02:22:14,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:22:15,266 INFO L124 PetriNetUnfolderBase]: 2903/4947 cut-off events. [2024-11-28 02:22:15,266 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-28 02:22:15,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9351 conditions, 4947 events. 2903/4947 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 35212 event pairs, 2903 based on Foata normal form. 144/4849 useless extension candidates. Maximal degree in co-relation 9341. Up to 4016 conditions per place. [2024-11-28 02:22:15,314 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-28 02:22:15,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-11-28 02:22:15,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:15,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:22:15,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-28 02:22:15,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-28 02:22:15,317 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-11-28 02:22:15,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-11-28 02:22:15,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:22:15,322 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-28 02:22:15,323 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-28 02:22:15,324 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-28 02:22:15,324 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-28 02:22:15,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:15,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:22:15,325 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:15,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:22:15,325 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 02:22:15,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:15,326 INFO L85 PathProgramCache]: Analyzing trace with hash -947078218, now seen corresponding path program 1 times [2024-11-28 02:22:15,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:15,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881518821] [2024-11-28 02:22:15,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:15,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:15,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:15,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881518821] [2024-11-28 02:22:15,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881518821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:15,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:15,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:22:15,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174385938] [2024-11-28 02:22:15,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:15,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:15,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:15,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:15,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:15,938 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-11-28 02:22:15,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:15,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:22:15,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-11-28 02:22:15,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:22:22,314 INFO L124 PetriNetUnfolderBase]: 28756/41839 cut-off events. [2024-11-28 02:22:22,315 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:22:22,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80941 conditions, 41839 events. 28756/41839 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1903. Compared 304050 event pairs, 7300 based on Foata normal form. 0/40652 useless extension candidates. Maximal degree in co-relation 80935. Up to 16239 conditions per place. [2024-11-28 02:22:22,521 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 48 selfloop transitions, 7 changer transitions 96/165 dead transitions. [2024-11-28 02:22:22,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 165 transitions, 648 flow [2024-11-28 02:22:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:22:22,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 02:22:22,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 324 transitions. [2024-11-28 02:22:22,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-11-28 02:22:22,529 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 324 transitions. [2024-11-28 02:22:22,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 165 transitions, 648 flow [2024-11-28 02:22:22,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 165 transitions, 647 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:22:22,537 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 193 flow [2024-11-28 02:22:22,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=193, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2024-11-28 02:22:22,538 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-28 02:22:22,540 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 193 flow [2024-11-28 02:22:22,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:22,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:22:22,540 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:22,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:22:22,541 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 02:22:22,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:22,542 INFO L85 PathProgramCache]: Analyzing trace with hash -595831147, now seen corresponding path program 1 times [2024-11-28 02:22:22,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:22,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923038702] [2024-11-28 02:22:22,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:22,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:22,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:22,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923038702] [2024-11-28 02:22:22,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923038702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:22,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:22,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:22:22,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484399324] [2024-11-28 02:22:22,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:22,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:22,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:22,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:22,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:22,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-28 02:22:22,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 193 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:22,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:22:22,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-28 02:22:22,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:22:26,636 INFO L124 PetriNetUnfolderBase]: 15914/25320 cut-off events. [2024-11-28 02:22:26,637 INFO L125 PetriNetUnfolderBase]: For 22091/23622 co-relation queries the response was YES. [2024-11-28 02:22:26,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66012 conditions, 25320 events. 15914/25320 cut-off events. For 22091/23622 co-relation queries the response was YES. Maximal size of possible extension queue 1310. Compared 202475 event pairs, 4135 based on Foata normal form. 713/24958 useless extension candidates. Maximal degree in co-relation 65997. Up to 14194 conditions per place. [2024-11-28 02:22:27,020 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 34 selfloop transitions, 3 changer transitions 43/102 dead transitions. [2024-11-28 02:22:27,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 102 transitions, 517 flow [2024-11-28 02:22:27,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:22:27,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:22:27,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-11-28 02:22:27,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6155844155844156 [2024-11-28 02:22:27,025 INFO L175 Difference]: Start difference. First operand has 70 places, 49 transitions, 193 flow. Second operand 7 states and 237 transitions. [2024-11-28 02:22:27,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 102 transitions, 517 flow [2024-11-28 02:22:27,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 102 transitions, 467 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-11-28 02:22:27,276 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 182 flow [2024-11-28 02:22:27,276 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=182, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2024-11-28 02:22:27,277 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-28 02:22:27,278 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 182 flow [2024-11-28 02:22:27,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:27,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:22:27,279 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] [2024-11-28 02:22:27,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:22:27,279 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 02:22:27,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:27,280 INFO L85 PathProgramCache]: Analyzing trace with hash 296418292, now seen corresponding path program 1 times [2024-11-28 02:22:27,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:27,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169320707] [2024-11-28 02:22:27,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:27,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:27,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:27,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:27,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169320707] [2024-11-28 02:22:27,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169320707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:27,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:27,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:22:27,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649687236] [2024-11-28 02:22:27,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:27,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:27,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:27,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:27,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:27,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-28 02:22:27,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:27,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:22:27,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-28 02:22:27,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:22:31,989 INFO L124 PetriNetUnfolderBase]: 17160/27371 cut-off events. [2024-11-28 02:22:31,990 INFO L125 PetriNetUnfolderBase]: For 24430/24636 co-relation queries the response was YES. [2024-11-28 02:22:32,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69089 conditions, 27371 events. 17160/27371 cut-off events. For 24430/24636 co-relation queries the response was YES. Maximal size of possible extension queue 1327. Compared 217314 event pairs, 5752 based on Foata normal form. 678/27575 useless extension candidates. Maximal degree in co-relation 69071. Up to 18045 conditions per place. [2024-11-28 02:22:32,342 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 40 selfloop transitions, 5 changer transitions 47/112 dead transitions. [2024-11-28 02:22:32,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 112 transitions, 592 flow [2024-11-28 02:22:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:22:32,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:22:32,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-11-28 02:22:32,343 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6233766233766234 [2024-11-28 02:22:32,344 INFO L175 Difference]: Start difference. First operand has 70 places, 49 transitions, 182 flow. Second operand 7 states and 240 transitions. [2024-11-28 02:22:32,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 112 transitions, 592 flow [2024-11-28 02:22:32,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 112 transitions, 566 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-28 02:22:32,877 INFO L231 Difference]: Finished difference. Result has 69 places, 52 transitions, 219 flow [2024-11-28 02:22:32,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=219, PETRI_PLACES=69, PETRI_TRANSITIONS=52} [2024-11-28 02:22:32,878 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-11-28 02:22:32,878 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 52 transitions, 219 flow [2024-11-28 02:22:32,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:32,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:22:32,879 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] [2024-11-28 02:22:32,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:22:32,879 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 02:22:32,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:32,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1652289709, now seen corresponding path program 1 times [2024-11-28 02:22:32,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:32,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388135335] [2024-11-28 02:22:32,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:32,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:33,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:33,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:33,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388135335] [2024-11-28 02:22:33,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388135335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:33,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:33,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:33,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545977241] [2024-11-28 02:22:33,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:33,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:22:33,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:33,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:22:33,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:22:33,114 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-28 02:22:33,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 52 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:33,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:22:33,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-28 02:22:33,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:22:38,723 INFO L124 PetriNetUnfolderBase]: 30922/46410 cut-off events. [2024-11-28 02:22:38,723 INFO L125 PetriNetUnfolderBase]: For 28735/31465 co-relation queries the response was YES. [2024-11-28 02:22:38,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110494 conditions, 46410 events. 30922/46410 cut-off events. For 28735/31465 co-relation queries the response was YES. Maximal size of possible extension queue 1931. Compared 348440 event pairs, 5076 based on Foata normal form. 1621/46719 useless extension candidates. Maximal degree in co-relation 110477. Up to 25055 conditions per place. [2024-11-28 02:22:38,989 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 57 selfloop transitions, 6 changer transitions 0/86 dead transitions. [2024-11-28 02:22:38,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 86 transitions, 435 flow [2024-11-28 02:22:38,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:22:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:22:38,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-28 02:22:38,990 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-11-28 02:22:38,991 INFO L175 Difference]: Start difference. First operand has 69 places, 52 transitions, 219 flow. Second operand 4 states and 146 transitions. [2024-11-28 02:22:38,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 86 transitions, 435 flow [2024-11-28 02:22:39,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 86 transitions, 426 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-28 02:22:39,267 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 256 flow [2024-11-28 02:22:39,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=67, PETRI_TRANSITIONS=57} [2024-11-28 02:22:39,268 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2024-11-28 02:22:39,269 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 256 flow [2024-11-28 02:22:39,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:39,269 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:22:39,269 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:39,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:22:39,269 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 02:22:39,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:39,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1616473434, now seen corresponding path program 1 times [2024-11-28 02:22:39,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:39,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540042329] [2024-11-28 02:22:39,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:39,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:39,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:39,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540042329] [2024-11-28 02:22:39,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540042329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:39,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:39,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:22:39,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255960025] [2024-11-28 02:22:39,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:39,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:22:39,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:39,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:22:39,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:22:39,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-11-28 02:22:39,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 57 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:39,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:22:39,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-11-28 02:22:39,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:22:47,318 INFO L124 PetriNetUnfolderBase]: 36782/54761 cut-off events. [2024-11-28 02:22:47,319 INFO L125 PetriNetUnfolderBase]: For 58701/61772 co-relation queries the response was YES. [2024-11-28 02:22:47,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152877 conditions, 54761 events. 36782/54761 cut-off events. For 58701/61772 co-relation queries the response was YES. Maximal size of possible extension queue 2461. Compared 423450 event pairs, 11397 based on Foata normal form. 911/52720 useless extension candidates. Maximal degree in co-relation 152859. Up to 24941 conditions per place. [2024-11-28 02:22:47,624 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 109 selfloop transitions, 14 changer transitions 0/142 dead transitions. [2024-11-28 02:22:47,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 142 transitions, 834 flow [2024-11-28 02:22:47,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:22:47,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 02:22:47,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 271 transitions. [2024-11-28 02:22:47,627 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.615909090909091 [2024-11-28 02:22:47,627 INFO L175 Difference]: Start difference. First operand has 67 places, 57 transitions, 256 flow. Second operand 8 states and 271 transitions. [2024-11-28 02:22:47,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 142 transitions, 834 flow [2024-11-28 02:22:47,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 142 transitions, 826 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-28 02:22:47,655 INFO L231 Difference]: Finished difference. Result has 79 places, 64 transitions, 367 flow [2024-11-28 02:22:47,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=367, PETRI_PLACES=79, PETRI_TRANSITIONS=64} [2024-11-28 02:22:47,656 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-11-28 02:22:47,656 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 64 transitions, 367 flow [2024-11-28 02:22:47,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:47,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:22:47,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:47,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:22:47,657 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 02:22:47,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:47,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1872748772, now seen corresponding path program 1 times [2024-11-28 02:22:47,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:47,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800938706] [2024-11-28 02:22:47,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:47,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:48,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:48,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:48,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800938706] [2024-11-28 02:22:48,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800938706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:48,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:48,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:22:48,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700681684] [2024-11-28 02:22:48,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:48,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:22:48,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:48,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:22:48,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:22:48,244 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-28 02:22:48,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 64 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:22:48,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:22:48,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-28 02:22:48,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand