./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:33:18,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:33:18,624 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-24 00:33:18,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:33:18,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:33:18,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:33:18,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:33:18,684 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:33:18,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:33:18,684 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:33:18,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:33:18,685 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:33:18,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:33:18,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:33:18,686 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:33:18,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:33:18,686 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:33:18,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:33:18,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:33:18,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:33:18,687 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-24 00:33:18,687 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-24 00:33:18,687 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-24 00:33:18,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:33:18,688 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:33:18,688 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:33:18,688 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:33:18,688 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:33:18,688 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:33:18,689 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:33:18,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:33:18,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:33:18,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:33:18,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:33:18,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:33:18,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:33:18,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:33:18,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:33:18,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:33:18,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:33:18,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:33:18,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:33:18,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:33:18,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:33:18,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:33:18,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:33:18,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:33:18,692 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_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c [2024-11-24 00:33:19,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:33:19,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:33:19,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:33:19,120 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:33:19,121 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:33:19,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-24 00:33:22,792 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/data/afb5f8e4f/462c8c8860a8446199a9cfa572266ab8/FLAGbdae958c0 [2024-11-24 00:33:23,265 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:33:23,266 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-24 00:33:23,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/data/afb5f8e4f/462c8c8860a8446199a9cfa572266ab8/FLAGbdae958c0 [2024-11-24 00:33:23,391 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/data/afb5f8e4f/462c8c8860a8446199a9cfa572266ab8 [2024-11-24 00:33:23,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:33:23,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:33:23,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:33:23,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:33:23,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:33:23,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:23" (1/1) ... [2024-11-24 00:33:23,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9bcc31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:23, skipping insertion in model container [2024-11-24 00:33:23,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:23" (1/1) ... [2024-11-24 00:33:23,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:33:23,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:33:23,914 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:33:23,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:33:24,012 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:33:24,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24 WrapperNode [2024-11-24 00:33:24,013 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:33:24,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:33:24,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:33:24,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:33:24,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,070 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-24 00:33:24,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:33:24,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:33:24,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:33:24,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:33:24,086 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,125 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]. [2024-11-24 00:33:24,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,138 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:33:24,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:33:24,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:33:24,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:33:24,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (1/1) ... [2024-11-24 00:33:24,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:33:24,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:24,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:33:24,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:33:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-24 00:33:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:33:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-24 00:33:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-24 00:33:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-24 00:33:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-24 00:33:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-24 00:33:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-24 00:33:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:33:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-24 00:33:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:33:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:33:24,274 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:33:24,508 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:33:24,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:33:24,775 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:33:24,776 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:33:24,966 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:33:24,970 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:33:24,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:24 BoogieIcfgContainer [2024-11-24 00:33:24,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:33:24,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:33:24,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:33:24,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:33:24,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:33:23" (1/3) ... [2024-11-24 00:33:24,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f116e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:33:24, skipping insertion in model container [2024-11-24 00:33:24,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:24" (2/3) ... [2024-11-24 00:33:24,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f116e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:33:24, skipping insertion in model container [2024-11-24 00:33:24,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:24" (3/3) ... [2024-11-24 00:33:24,992 INFO L128 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-24 00:33:25,009 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:33:25,011 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe028_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. [2024-11-24 00:33:25,011 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:33:25,109 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 00:33:25,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-11-24 00:33:25,215 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-24 00:33:25,218 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:33:25,223 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 71 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. [2024-11-24 00:33:25,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-11-24 00:33:25,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-11-24 00:33:25,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:33:25,253 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;@72746314, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:33:25,253 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-24 00:33:25,305 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:33:25,306 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-11-24 00:33:25,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:33:25,306 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:33:25,307 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:25,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-24 00:33:25,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:25,314 INFO L85 PathProgramCache]: Analyzing trace with hash -300092802, now seen corresponding path program 1 times [2024-11-24 00:33:25,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:25,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812602250] [2024-11-24 00:33:25,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:25,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:25,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:25,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812602250] [2024-11-24 00:33:25,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812602250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:25,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:25,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 00:33:25,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447968037] [2024-11-24 00:33:25,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:25,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:25,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:25,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:25,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:25,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-11-24 00:33:25,736 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) [2024-11-24 00:33:25,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:33:25,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-11-24 00:33:25,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:33:25,872 INFO L124 PetriNetUnfolderBase]: 75/218 cut-off events. [2024-11-24 00:33:25,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:33:25,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 218 events. 75/218 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1202 event pairs, 75 based on Foata normal form. 24/223 useless extension candidates. Maximal degree in co-relation 362. Up to 136 conditions per place. [2024-11-24 00:33:25,880 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-24 00:33:25,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-11-24 00:33:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:25,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:33:25,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-24 00:33:25,900 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-11-24 00:33:25,902 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-11-24 00:33:25,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-11-24 00:33:25,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-24 00:33:25,911 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-11-24 00:33:25,914 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} [2024-11-24 00:33:25,918 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-11-24 00:33:25,918 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-11-24 00:33:25,919 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) [2024-11-24 00:33:25,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:33:25,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:25,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:33:25,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-24 00:33:25,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash -300091372, now seen corresponding path program 1 times [2024-11-24 00:33:25,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:25,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669612762] [2024-11-24 00:33:25,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:26,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:26,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669612762] [2024-11-24 00:33:26,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669612762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:26,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:26,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:33:26,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128875282] [2024-11-24 00:33:26,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:26,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:33:26,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:26,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:33:26,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:33:26,523 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-11-24 00:33:26,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-11-24 00:33:26,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:33:26,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-11-24 00:33:26,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:33:27,036 INFO L124 PetriNetUnfolderBase]: 413/813 cut-off events. [2024-11-24 00:33:27,037 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:33:27,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 813 events. 413/813 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 5069 event pairs, 174 based on Foata normal form. 0/778 useless extension candidates. Maximal degree in co-relation 1495. Up to 397 conditions per place. [2024-11-24 00:33:27,053 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 23 selfloop transitions, 3 changer transitions 30/72 dead transitions. [2024-11-24 00:33:27,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 72 transitions, 268 flow [2024-11-24 00:33:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:33:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-24 00:33:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 218 transitions. [2024-11-24 00:33:27,058 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6337209302325582 [2024-11-24 00:33:27,058 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 8 states and 218 transitions. [2024-11-24 00:33:27,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 72 transitions, 268 flow [2024-11-24 00:33:27,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 72 transitions, 267 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:33:27,067 INFO L231 Difference]: Finished difference. Result has 54 places, 35 transitions, 108 flow [2024-11-24 00:33:27,067 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=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=108, PETRI_PLACES=54, PETRI_TRANSITIONS=35} [2024-11-24 00:33:27,068 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2024-11-24 00:33:27,068 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 35 transitions, 108 flow [2024-11-24 00:33:27,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-11-24 00:33:27,069 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:33:27,069 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:27,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:33:27,070 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-24 00:33:27,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:27,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2049276403, now seen corresponding path program 1 times [2024-11-24 00:33:27,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:27,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141567945] [2024-11-24 00:33:27,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:27,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:27,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:27,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:27,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141567945] [2024-11-24 00:33:27,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141567945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:27,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:27,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:33:27,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799618578] [2024-11-24 00:33:27,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:27,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:33:27,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:27,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:33:27,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:33:27,520 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-11-24 00:33:27,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 35 transitions, 108 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:27,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:33:27,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-11-24 00:33:27,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:33:28,307 INFO L124 PetriNetUnfolderBase]: 599/1175 cut-off events. [2024-11-24 00:33:28,307 INFO L125 PetriNetUnfolderBase]: For 826/826 co-relation queries the response was YES. [2024-11-24 00:33:28,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2791 conditions, 1175 events. 599/1175 cut-off events. For 826/826 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7581 event pairs, 57 based on Foata normal form. 33/1187 useless extension candidates. Maximal degree in co-relation 2779. Up to 489 conditions per place. [2024-11-24 00:33:28,323 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 45 selfloop transitions, 11 changer transitions 42/113 dead transitions. [2024-11-24 00:33:28,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 113 transitions, 592 flow [2024-11-24 00:33:28,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:33:28,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-24 00:33:28,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 347 transitions. [2024-11-24 00:33:28,331 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6207513416815742 [2024-11-24 00:33:28,332 INFO L175 Difference]: Start difference. First operand has 54 places, 35 transitions, 108 flow. Second operand 13 states and 347 transitions. [2024-11-24 00:33:28,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 113 transitions, 592 flow [2024-11-24 00:33:28,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 113 transitions, 563 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-11-24 00:33:28,349 INFO L231 Difference]: Finished difference. Result has 68 places, 43 transitions, 225 flow [2024-11-24 00:33:28,349 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=225, PETRI_PLACES=68, PETRI_TRANSITIONS=43} [2024-11-24 00:33:28,351 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 21 predicate places. [2024-11-24 00:33:28,351 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 43 transitions, 225 flow [2024-11-24 00:33:28,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:28,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:33:28,352 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:28,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:33:28,352 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-24 00:33:28,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:28,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1753790115, now seen corresponding path program 1 times [2024-11-24 00:33:28,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:28,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853569755] [2024-11-24 00:33:28,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:28,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:28,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:28,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853569755] [2024-11-24 00:33:28,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853569755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:28,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:28,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:33:28,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147153625] [2024-11-24 00:33:28,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:28,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:33:28,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:28,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:33:28,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:33:28,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-11-24 00:33:28,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 43 transitions, 225 flow. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 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) [2024-11-24 00:33:28,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:33:28,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-11-24 00:33:28,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:33:29,296 INFO L124 PetriNetUnfolderBase]: 597/1191 cut-off events. [2024-11-24 00:33:29,297 INFO L125 PetriNetUnfolderBase]: For 4958/4961 co-relation queries the response was YES. [2024-11-24 00:33:29,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4263 conditions, 1191 events. 597/1191 cut-off events. For 4958/4961 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 7863 event pairs, 103 based on Foata normal form. 48/1214 useless extension candidates. Maximal degree in co-relation 4241. Up to 307 conditions per place. [2024-11-24 00:33:29,310 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 5 changer transitions 55/101 dead transitions. [2024-11-24 00:33:29,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 101 transitions, 825 flow [2024-11-24 00:33:29,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:33:29,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 00:33:29,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 264 transitions. [2024-11-24 00:33:29,313 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6139534883720931 [2024-11-24 00:33:29,313 INFO L175 Difference]: Start difference. First operand has 68 places, 43 transitions, 225 flow. Second operand 10 states and 264 transitions. [2024-11-24 00:33:29,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 101 transitions, 825 flow [2024-11-24 00:33:29,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 101 transitions, 705 flow, removed 55 selfloop flow, removed 7 redundant places. [2024-11-24 00:33:29,338 INFO L231 Difference]: Finished difference. Result has 70 places, 37 transitions, 180 flow [2024-11-24 00:33:29,339 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=180, PETRI_PLACES=70, PETRI_TRANSITIONS=37} [2024-11-24 00:33:29,340 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2024-11-24 00:33:29,340 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 37 transitions, 180 flow [2024-11-24 00:33:29,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 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) [2024-11-24 00:33:29,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:33:29,341 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:29,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:33:29,342 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-24 00:33:29,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:29,342 INFO L85 PathProgramCache]: Analyzing trace with hash -381262972, now seen corresponding path program 1 times [2024-11-24 00:33:29,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:29,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060202915] [2024-11-24 00:33:29,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:29,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:29,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:29,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060202915] [2024-11-24 00:33:29,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060202915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:29,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:29,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:29,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323058285] [2024-11-24 00:33:29,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:29,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:33:29,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:29,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:33:29,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:33:29,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-24 00:33:29,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 37 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-24 00:33:29,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:33:29,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-24 00:33:29,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:33:29,773 INFO L124 PetriNetUnfolderBase]: 501/984 cut-off events. [2024-11-24 00:33:29,773 INFO L125 PetriNetUnfolderBase]: For 2176/2221 co-relation queries the response was YES. [2024-11-24 00:33:29,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2798 conditions, 984 events. 501/984 cut-off events. For 2176/2221 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5764 event pairs, 94 based on Foata normal form. 36/976 useless extension candidates. Maximal degree in co-relation 2773. Up to 433 conditions per place. [2024-11-24 00:33:29,784 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 27 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2024-11-24 00:33:29,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 52 transitions, 278 flow [2024-11-24 00:33:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:33:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:33:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-11-24 00:33:29,786 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2024-11-24 00:33:29,786 INFO L175 Difference]: Start difference. First operand has 70 places, 37 transitions, 180 flow. Second operand 4 states and 118 transitions. [2024-11-24 00:33:29,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 52 transitions, 278 flow [2024-11-24 00:33:29,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 52 transitions, 246 flow, removed 10 selfloop flow, removed 11 redundant places. [2024-11-24 00:33:29,794 INFO L231 Difference]: Finished difference. Result has 58 places, 41 transitions, 186 flow [2024-11-24 00:33:29,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=58, PETRI_TRANSITIONS=41} [2024-11-24 00:33:29,796 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-11-24 00:33:29,796 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 41 transitions, 186 flow [2024-11-24 00:33:29,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-24 00:33:29,797 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:33:29,797 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] [2024-11-24 00:33:29,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:33:29,797 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-24 00:33:29,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:29,801 INFO L85 PathProgramCache]: Analyzing trace with hash 14769973, now seen corresponding path program 1 times [2024-11-24 00:33:29,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:29,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137989716] [2024-11-24 00:33:29,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:29,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:29,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:29,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:29,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137989716] [2024-11-24 00:33:29,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137989716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:29,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:29,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:33:29,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496318266] [2024-11-24 00:33:29,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:29,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:33:29,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:29,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:33:29,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:33:29,998 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-24 00:33:29,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 41 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-11-24 00:33:29,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:33:29,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-24 00:33:29,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:33:30,232 INFO L124 PetriNetUnfolderBase]: 398/799 cut-off events. [2024-11-24 00:33:30,232 INFO L125 PetriNetUnfolderBase]: For 860/1141 co-relation queries the response was YES. [2024-11-24 00:33:30,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2203 conditions, 799 events. 398/799 cut-off events. For 860/1141 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4137 event pairs, 33 based on Foata normal form. 42/803 useless extension candidates. Maximal degree in co-relation 2185. Up to 277 conditions per place. [2024-11-24 00:33:30,241 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 34 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2024-11-24 00:33:30,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 62 transitions, 333 flow [2024-11-24 00:33:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:33:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-24 00:33:30,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2024-11-24 00:33:30,244 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6930232558139535 [2024-11-24 00:33:30,244 INFO L175 Difference]: Start difference. First operand has 58 places, 41 transitions, 186 flow. Second operand 5 states and 149 transitions. [2024-11-24 00:33:30,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 62 transitions, 333 flow [2024-11-24 00:33:30,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 321 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-24 00:33:30,248 INFO L231 Difference]: Finished difference. Result has 61 places, 45 transitions, 229 flow [2024-11-24 00:33:30,248 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=229, PETRI_PLACES=61, PETRI_TRANSITIONS=45} [2024-11-24 00:33:30,249 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 14 predicate places. [2024-11-24 00:33:30,249 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 45 transitions, 229 flow [2024-11-24 00:33:30,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-11-24 00:33:30,250 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:33:30,250 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:30,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:33:30,250 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-24 00:33:30,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:30,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1204431956, now seen corresponding path program 1 times [2024-11-24 00:33:30,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:30,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701314188] [2024-11-24 00:33:30,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:30,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:30,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:30,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:30,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701314188] [2024-11-24 00:33:30,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701314188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:30,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:30,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:33:30,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217107274] [2024-11-24 00:33:30,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:30,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:33:30,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:30,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:33:30,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:33:30,477 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-24 00:33:30,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 45 transitions, 229 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:30,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:33:30,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-24 00:33:30,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:33:30,740 INFO L124 PetriNetUnfolderBase]: 282/555 cut-off events. [2024-11-24 00:33:30,740 INFO L125 PetriNetUnfolderBase]: For 910/1497 co-relation queries the response was YES. [2024-11-24 00:33:30,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1715 conditions, 555 events. 282/555 cut-off events. For 910/1497 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2454 event pairs, 13 based on Foata normal form. 39/560 useless extension candidates. Maximal degree in co-relation 1696. Up to 200 conditions per place. [2024-11-24 00:33:30,747 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 33 selfloop transitions, 11 changer transitions 0/64 dead transitions. [2024-11-24 00:33:30,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 366 flow [2024-11-24 00:33:30,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:33:30,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:33:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2024-11-24 00:33:30,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-24 00:33:30,748 INFO L175 Difference]: Start difference. First operand has 61 places, 45 transitions, 229 flow. Second operand 6 states and 172 transitions. [2024-11-24 00:33:30,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 366 flow [2024-11-24 00:33:30,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 64 transitions, 337 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-11-24 00:33:30,755 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 245 flow [2024-11-24 00:33:30,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=245, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2024-11-24 00:33:30,756 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-11-24 00:33:30,756 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 245 flow [2024-11-24 00:33:30,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:30,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:33:30,758 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:30,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:33:30,759 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-24 00:33:30,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:30,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1494857169, now seen corresponding path program 1 times [2024-11-24 00:33:30,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:30,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393827346] [2024-11-24 00:33:30,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:30,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:30,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:30,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393827346] [2024-11-24 00:33:30,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393827346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:30,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:30,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:33:30,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533293988] [2024-11-24 00:33:30,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:30,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:33:30,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:30,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:33:30,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:33:31,010 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-24 00:33:31,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 245 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:31,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:33:31,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-24 00:33:31,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:33:31,324 INFO L124 PetriNetUnfolderBase]: 374/903 cut-off events. [2024-11-24 00:33:31,325 INFO L125 PetriNetUnfolderBase]: For 1642/1759 co-relation queries the response was YES. [2024-11-24 00:33:31,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2627 conditions, 903 events. 374/903 cut-off events. For 1642/1759 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5731 event pairs, 101 based on Foata normal form. 14/820 useless extension candidates. Maximal degree in co-relation 2607. Up to 281 conditions per place. [2024-11-24 00:33:31,331 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 18 selfloop transitions, 1 changer transitions 22/67 dead transitions. [2024-11-24 00:33:31,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 67 transitions, 385 flow [2024-11-24 00:33:31,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:33:31,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:33:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 164 transitions. [2024-11-24 00:33:31,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6356589147286822 [2024-11-24 00:33:31,333 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 245 flow. Second operand 6 states and 164 transitions. [2024-11-24 00:33:31,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 67 transitions, 385 flow [2024-11-24 00:33:31,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 67 transitions, 349 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-24 00:33:31,340 INFO L231 Difference]: Finished difference. Result has 69 places, 42 transitions, 204 flow [2024-11-24 00:33:31,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=204, PETRI_PLACES=69, PETRI_TRANSITIONS=42} [2024-11-24 00:33:31,340 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-11-24 00:33:31,341 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 42 transitions, 204 flow [2024-11-24 00:33:31,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:31,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:33:31,341 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:31,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:33:31,341 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-24 00:33:31,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash -804874245, now seen corresponding path program 2 times [2024-11-24 00:33:31,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:31,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747981151] [2024-11-24 00:33:31,342 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:33:31,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:31,362 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:33:31,362 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:33:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:33:31,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:31,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747981151] [2024-11-24 00:33:31,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747981151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:31,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:31,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:33:31,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627156421] [2024-11-24 00:33:31,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:31,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:33:31,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:31,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:33:31,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:33:31,649 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-11-24 00:33:31,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 42 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 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) [2024-11-24 00:33:31,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:33:31,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-11-24 00:33:31,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:33:31,876 INFO L124 PetriNetUnfolderBase]: 167/431 cut-off events. [2024-11-24 00:33:31,876 INFO L125 PetriNetUnfolderBase]: For 476/525 co-relation queries the response was YES. [2024-11-24 00:33:31,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1204 conditions, 431 events. 167/431 cut-off events. For 476/525 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2281 event pairs, 36 based on Foata normal form. 12/407 useless extension candidates. Maximal degree in co-relation 1188. Up to 178 conditions per place. [2024-11-24 00:33:31,879 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2024-11-24 00:33:31,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 51 transitions, 280 flow [2024-11-24 00:33:31,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:33:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-24 00:33:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2024-11-24 00:33:31,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5415282392026578 [2024-11-24 00:33:31,881 INFO L175 Difference]: Start difference. First operand has 69 places, 42 transitions, 204 flow. Second operand 7 states and 163 transitions. [2024-11-24 00:33:31,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 51 transitions, 280 flow [2024-11-24 00:33:31,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 51 transitions, 271 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-24 00:33:31,884 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-11-24 00:33:31,884 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-11-24 00:33:31,885 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2024-11-24 00:33:31,885 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-11-24 00:33:31,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 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) [2024-11-24 00:33:31,888 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-24 00:33:31,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-24 00:33:31,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-24 00:33:31,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-24 00:33:31,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-24 00:33:31,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:33:31,890 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:31,894 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-24 00:33:31,894 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:33:31,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:33:31 BasicIcfg [2024-11-24 00:33:31,900 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:33:31,901 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:33:31,901 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:33:31,901 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:33:31,902 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:24" (3/4) ... [2024-11-24 00:33:31,905 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:33:31,908 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-24 00:33:31,908 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-24 00:33:31,909 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-24 00:33:31,913 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-24 00:33:31,913 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-24 00:33:31,913 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:33:31,914 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-24 00:33:31,998 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:33:31,999 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:33:31,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:33:32,000 INFO L158 Benchmark]: Toolchain (without parser) took 8604.17ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.8MB in the beginning and 238.9MB in the end (delta: -146.1MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2024-11-24 00:33:32,000 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:33:32,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.18ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 72.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:33:32,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.33ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 71.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:33:32,001 INFO L158 Benchmark]: Boogie Preprocessor took 84.12ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 69.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:33:32,002 INFO L158 Benchmark]: RCFGBuilder took 815.23ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 50.5MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:33:32,002 INFO L158 Benchmark]: TraceAbstraction took 6924.76ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 49.7MB in the beginning and 242.4MB in the end (delta: -192.7MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2024-11-24 00:33:32,002 INFO L158 Benchmark]: Witness Printer took 97.78ms. Allocated memory is still 352.3MB. Free memory was 242.4MB in the beginning and 238.9MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:33:32,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.18ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 72.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.33ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 71.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.12ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 69.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 815.23ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 50.5MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6924.76ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 49.7MB in the beginning and 242.4MB in the end (delta: -192.7MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Witness Printer took 97.78ms. Allocated memory is still 352.3MB. Free memory was 242.4MB in the beginning and 238.9MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 775]: 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: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 375 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 346 mSDsluCounter, 133 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 758 IncrementalHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 28 mSDtfsCounter, 758 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245occurred in iteration=7, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 732 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! [2024-11-24 00:33:32,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c7849c-6647-4c1e-9f0b-a4aef9492273/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE