./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe024_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe024_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd --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 f830c559346dfed293d38cb3f451f57bf45496349320c2696ae4150a4c0c44e9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:22:15,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:22:15,533 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 15:22:15,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:22:15,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:22:15,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:22:15,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:22:15,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:22:15,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:22:15,576 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:22:15,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:22:15,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:22:15,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:22:15,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:22:15,577 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:22:15,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:22:15,578 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:22:15,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:22:15,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:22:15,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:22:15,578 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:22:15,578 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:22:15,578 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 15:22:15,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:22:15,579 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:22:15,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:22:15,579 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:22:15,579 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:22:15,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:22:15,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:22:15,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:22:15,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:22:15,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:22:15,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:22:15,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:22:15,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:22:15,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:22:15,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:22:15,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:22:15,581 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:22:15,581 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:22:15,581 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:22:15,581 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_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd 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 -> f830c559346dfed293d38cb3f451f57bf45496349320c2696ae4150a4c0c44e9 [2024-11-13 15:22:15,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:22:15,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:22:15,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:22:15,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:22:15,915 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:22:15,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/safe024_tso.i Unable to find full path for "g++" [2024-11-13 15:22:17,783 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:22:18,165 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:22:18,165 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/sv-benchmarks/c/pthread-wmm/safe024_tso.i [2024-11-13 15:22:18,180 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/data/d63393a24/c52f30f9a59d4898a51705ef0f2f4383/FLAG869686ce1 [2024-11-13 15:22:18,200 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/data/d63393a24/c52f30f9a59d4898a51705ef0f2f4383 [2024-11-13 15:22:18,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:22:18,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:22:18,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:22:18,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:22:18,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:22:18,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e1fa298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18, skipping insertion in model container [2024-11-13 15:22:18,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:22:18,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:22:18,702 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:22:18,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:22:18,782 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:22:18,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18 WrapperNode [2024-11-13 15:22:18,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:22:18,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:22:18,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:22:18,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:22:18,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,817 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2024-11-13 15:22:18,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:22:18,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:22:18,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:22:18,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:22:18,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,840 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]. [2024-11-13 15:22:18,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:22:18,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:22:18,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:22:18,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:22:18,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (1/1) ... [2024-11-13 15:22:18,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:22:18,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:22:18,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:22:18,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:22:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 15:22:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:22:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 15:22:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 15:22:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 15:22:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 15:22:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 15:22:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 15:22:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:22:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 15:22:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:22:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:22:18,929 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:22:19,093 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:22:19,095 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:22:19,304 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:22:19,304 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:22:19,433 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:22:19,433 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 15:22:19,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:22:19 BoogieIcfgContainer [2024-11-13 15:22:19,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:22:19,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:22:19,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:22:19,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:22:19,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:22:18" (1/3) ... [2024-11-13 15:22:19,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33eb8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:22:19, skipping insertion in model container [2024-11-13 15:22:19,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:22:18" (2/3) ... [2024-11-13 15:22:19,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33eb8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:22:19, skipping insertion in model container [2024-11-13 15:22:19,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:22:19" (3/3) ... [2024-11-13 15:22:19,448 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2024-11-13 15:22:19,468 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:22:19,470 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe024_tso.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 15:22:19,473 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:22:19,545 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:22:19,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-11-13 15:22:19,638 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-13 15:22:19,643 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:22:19,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-13 15:22:19,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-11-13 15:22:19,653 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2024-11-13 15:22:19,668 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:22:19,684 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;@12b2f0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:22:19,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-13 15:22:19,712 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:22:19,712 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-11-13 15:22:19,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:22:19,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:19,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:19,714 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)] === [2024-11-13 15:22:19,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1274304469, now seen corresponding path program 1 times [2024-11-13 15:22:19,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:19,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667221553] [2024-11-13 15:22:19,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:19,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:20,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:20,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667221553] [2024-11-13 15:22:20,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667221553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:20,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:20,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 15:22:20,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340250749] [2024-11-13 15:22:20,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:20,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:22:20,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:20,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:22:20,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:22:20,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 44 [2024-11-13 15:22:20,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-13 15:22:20,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:20,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 44 [2024-11-13 15:22:20,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:20,251 INFO L124 PetriNetUnfolderBase]: 75/220 cut-off events. [2024-11-13 15:22:20,251 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:22:20,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 220 events. 75/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1214 event pairs, 75 based on Foata normal form. 24/223 useless extension candidates. Maximal degree in co-relation 364. Up to 136 conditions per place. [2024-11-13 15:22:20,255 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 12 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-11-13 15:22:20,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 109 flow [2024-11-13 15:22:20,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:22:20,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:22:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-11-13 15:22:20,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-11-13 15:22:20,270 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 92 transitions. [2024-11-13 15:22:20,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 109 flow [2024-11-13 15:22:20,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:22:20,277 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2024-11-13 15:22:20,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-11-13 15:22:20,284 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2024-11-13 15:22:20,285 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2024-11-13 15:22:20,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-13 15:22:20,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:20,286 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:20,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:22:20,287 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)] === [2024-11-13 15:22:20,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:20,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1274305929, now seen corresponding path program 1 times [2024-11-13 15:22:20,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:20,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969163264] [2024-11-13 15:22:20,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:20,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:20,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:20,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:20,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969163264] [2024-11-13 15:22:20,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969163264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:20,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:20,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:22:20,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285115639] [2024-11-13 15:22:20,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:20,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:22:20,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:20,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:22:20,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:22:20,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 44 [2024-11-13 15:22:20,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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) [2024-11-13 15:22:20,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:20,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 44 [2024-11-13 15:22:20,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:21,147 INFO L124 PetriNetUnfolderBase]: 413/830 cut-off events. [2024-11-13 15:22:21,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:22:21,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1518 conditions, 830 events. 413/830 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5551 event pairs, 112 based on Foata normal form. 0/798 useless extension candidates. Maximal degree in co-relation 1512. Up to 397 conditions per place. [2024-11-13 15:22:21,155 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 23 selfloop transitions, 3 changer transitions 30/73 dead transitions. [2024-11-13 15:22:21,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 270 flow [2024-11-13 15:22:21,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:22:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 15:22:21,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 226 transitions. [2024-11-13 15:22:21,158 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6420454545454546 [2024-11-13 15:22:21,158 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 8 states and 226 transitions. [2024-11-13 15:22:21,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 270 flow [2024-11-13 15:22:21,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 73 transitions, 269 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:22:21,161 INFO L231 Difference]: Finished difference. Result has 55 places, 36 transitions, 110 flow [2024-11-13 15:22:21,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=110, PETRI_PLACES=55, PETRI_TRANSITIONS=36} [2024-11-13 15:22:21,162 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2024-11-13 15:22:21,162 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 36 transitions, 110 flow [2024-11-13 15:22:21,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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) [2024-11-13 15:22:21,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:21,163 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:21,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:22:21,163 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)] === [2024-11-13 15:22:21,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:21,164 INFO L85 PathProgramCache]: Analyzing trace with hash 526101750, now seen corresponding path program 1 times [2024-11-13 15:22:21,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:21,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350901935] [2024-11-13 15:22:21,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:21,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:21,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:21,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350901935] [2024-11-13 15:22:21,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350901935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:21,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:21,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:22:21,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838730827] [2024-11-13 15:22:21,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:21,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:22:21,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:21,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:22:21,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:22:21,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2024-11-13 15:22:21,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 36 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-11-13 15:22:21,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:21,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2024-11-13 15:22:21,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:21,942 INFO L124 PetriNetUnfolderBase]: 599/1200 cut-off events. [2024-11-13 15:22:21,942 INFO L125 PetriNetUnfolderBase]: For 877/877 co-relation queries the response was YES. [2024-11-13 15:22:21,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2816 conditions, 1200 events. 599/1200 cut-off events. For 877/877 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7864 event pairs, 57 based on Foata normal form. 33/1217 useless extension candidates. Maximal degree in co-relation 2804. Up to 489 conditions per place. [2024-11-13 15:22:21,954 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 45 selfloop transitions, 11 changer transitions 42/114 dead transitions. [2024-11-13 15:22:21,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 114 transitions, 594 flow [2024-11-13 15:22:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:22:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:22:21,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 360 transitions. [2024-11-13 15:22:21,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6293706293706294 [2024-11-13 15:22:21,960 INFO L175 Difference]: Start difference. First operand has 55 places, 36 transitions, 110 flow. Second operand 13 states and 360 transitions. [2024-11-13 15:22:21,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 114 transitions, 594 flow [2024-11-13 15:22:21,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 114 transitions, 565 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-11-13 15:22:21,972 INFO L231 Difference]: Finished difference. Result has 69 places, 44 transitions, 227 flow [2024-11-13 15:22:21,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=227, PETRI_PLACES=69, PETRI_TRANSITIONS=44} [2024-11-13 15:22:21,973 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 21 predicate places. [2024-11-13 15:22:21,974 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 44 transitions, 227 flow [2024-11-13 15:22:21,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-11-13 15:22:21,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:21,974 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:21,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:22:21,975 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)] === [2024-11-13 15:22:21,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:21,975 INFO L85 PathProgramCache]: Analyzing trace with hash 829774421, now seen corresponding path program 1 times [2024-11-13 15:22:21,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:21,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085859530] [2024-11-13 15:22:21,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:21,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:22,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:22,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:22,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085859530] [2024-11-13 15:22:22,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085859530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:22,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:22,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:22:22,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260598665] [2024-11-13 15:22:22,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:22,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:22:22,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:22,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:22:22,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:22:22,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2024-11-13 15:22:22,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 44 transitions, 227 flow. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 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) [2024-11-13 15:22:22,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:22,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2024-11-13 15:22:22,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:22,663 INFO L124 PetriNetUnfolderBase]: 597/1194 cut-off events. [2024-11-13 15:22:22,663 INFO L125 PetriNetUnfolderBase]: For 4949/4952 co-relation queries the response was YES. [2024-11-13 15:22:22,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4266 conditions, 1194 events. 597/1194 cut-off events. For 4949/4952 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7835 event pairs, 103 based on Foata normal form. 48/1223 useless extension candidates. Maximal degree in co-relation 4244. Up to 307 conditions per place. [2024-11-13 15:22:22,673 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 26 selfloop transitions, 5 changer transitions 55/102 dead transitions. [2024-11-13 15:22:22,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 102 transitions, 827 flow [2024-11-13 15:22:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:22:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 15:22:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 274 transitions. [2024-11-13 15:22:22,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6227272727272727 [2024-11-13 15:22:22,676 INFO L175 Difference]: Start difference. First operand has 69 places, 44 transitions, 227 flow. Second operand 10 states and 274 transitions. [2024-11-13 15:22:22,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 102 transitions, 827 flow [2024-11-13 15:22:22,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 102 transitions, 707 flow, removed 55 selfloop flow, removed 7 redundant places. [2024-11-13 15:22:22,699 INFO L231 Difference]: Finished difference. Result has 71 places, 38 transitions, 182 flow [2024-11-13 15:22:22,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=182, PETRI_PLACES=71, PETRI_TRANSITIONS=38} [2024-11-13 15:22:22,700 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 23 predicate places. [2024-11-13 15:22:22,700 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 38 transitions, 182 flow [2024-11-13 15:22:22,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 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) [2024-11-13 15:22:22,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:22,700 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:22,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:22:22,700 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)] === [2024-11-13 15:22:22,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:22,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1853668258, now seen corresponding path program 1 times [2024-11-13 15:22:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:22,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512724880] [2024-11-13 15:22:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:22,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:22,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:22,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:22,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512724880] [2024-11-13 15:22:22,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512724880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:22,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:22,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:22:22,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252143912] [2024-11-13 15:22:22,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:22,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:22:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:22:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:22:22,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-13 15:22:22,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 38 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-11-13 15:22:22,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:22,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-13 15:22:22,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:23,089 INFO L124 PetriNetUnfolderBase]: 501/985 cut-off events. [2024-11-13 15:22:23,089 INFO L125 PetriNetUnfolderBase]: For 2221/2271 co-relation queries the response was YES. [2024-11-13 15:22:23,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2799 conditions, 985 events. 501/985 cut-off events. For 2221/2271 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 5786 event pairs, 94 based on Foata normal form. 35/976 useless extension candidates. Maximal degree in co-relation 2774. Up to 433 conditions per place. [2024-11-13 15:22:23,099 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 27 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2024-11-13 15:22:23,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 53 transitions, 280 flow [2024-11-13 15:22:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:22:23,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:22:23,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-13 15:22:23,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-11-13 15:22:23,101 INFO L175 Difference]: Start difference. First operand has 71 places, 38 transitions, 182 flow. Second operand 4 states and 122 transitions. [2024-11-13 15:22:23,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 53 transitions, 280 flow [2024-11-13 15:22:23,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 53 transitions, 248 flow, removed 10 selfloop flow, removed 11 redundant places. [2024-11-13 15:22:23,109 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 188 flow [2024-11-13 15:22:23,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2024-11-13 15:22:23,110 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-11-13 15:22:23,110 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 188 flow [2024-11-13 15:22:23,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-11-13 15:22:23,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:23,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:23,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:22:23,111 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)] === [2024-11-13 15:22:23,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1465218341, now seen corresponding path program 1 times [2024-11-13 15:22:23,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:23,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593249740] [2024-11-13 15:22:23,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:23,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:23,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:23,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:23,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593249740] [2024-11-13 15:22:23,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593249740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:23,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:23,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:22:23,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764712268] [2024-11-13 15:22:23,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:23,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:22:23,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:23,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:22:23,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:22:23,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-13 15:22:23,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-11-13 15:22:23,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:23,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-13 15:22:23,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:23,436 INFO L124 PetriNetUnfolderBase]: 398/800 cut-off events. [2024-11-13 15:22:23,436 INFO L125 PetriNetUnfolderBase]: For 890/1108 co-relation queries the response was YES. [2024-11-13 15:22:23,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 800 events. 398/800 cut-off events. For 890/1108 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4160 event pairs, 33 based on Foata normal form. 41/805 useless extension candidates. Maximal degree in co-relation 2186. Up to 277 conditions per place. [2024-11-13 15:22:23,443 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 34 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2024-11-13 15:22:23,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 63 transitions, 335 flow [2024-11-13 15:22:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:22:23,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 15:22:23,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-11-13 15:22:23,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-13 15:22:23,444 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 188 flow. Second operand 5 states and 154 transitions. [2024-11-13 15:22:23,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 63 transitions, 335 flow [2024-11-13 15:22:23,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 63 transitions, 323 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-13 15:22:23,448 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 231 flow [2024-11-13 15:22:23,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=231, PETRI_PLACES=62, PETRI_TRANSITIONS=46} [2024-11-13 15:22:23,449 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 14 predicate places. [2024-11-13 15:22:23,449 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 231 flow [2024-11-13 15:22:23,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-11-13 15:22:23,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:23,449 INFO L204 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] [2024-11-13 15:22:23,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:22:23,450 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)] === [2024-11-13 15:22:23,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:23,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1183429739, now seen corresponding path program 1 times [2024-11-13 15:22:23,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:23,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79804329] [2024-11-13 15:22:23,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:23,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:23,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79804329] [2024-11-13 15:22:23,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79804329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:23,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:23,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:22:23,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198235031] [2024-11-13 15:22:23,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:23,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:22:23,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:23,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:22:23,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:22:23,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-13 15:22:23,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 46 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-13 15:22:23,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:23,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-13 15:22:23,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:23,790 INFO L124 PetriNetUnfolderBase]: 282/556 cut-off events. [2024-11-13 15:22:23,790 INFO L125 PetriNetUnfolderBase]: For 896/1316 co-relation queries the response was YES. [2024-11-13 15:22:23,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1716 conditions, 556 events. 282/556 cut-off events. For 896/1316 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2453 event pairs, 13 based on Foata normal form. 38/562 useless extension candidates. Maximal degree in co-relation 1697. Up to 200 conditions per place. [2024-11-13 15:22:23,795 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 33 selfloop transitions, 11 changer transitions 0/65 dead transitions. [2024-11-13 15:22:23,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 65 transitions, 368 flow [2024-11-13 15:22:23,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:22:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:22:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 178 transitions. [2024-11-13 15:22:23,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6742424242424242 [2024-11-13 15:22:23,797 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 231 flow. Second operand 6 states and 178 transitions. [2024-11-13 15:22:23,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 65 transitions, 368 flow [2024-11-13 15:22:23,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 339 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-11-13 15:22:23,801 INFO L231 Difference]: Finished difference. Result has 66 places, 47 transitions, 247 flow [2024-11-13 15:22:23,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=66, PETRI_TRANSITIONS=47} [2024-11-13 15:22:23,802 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-13 15:22:23,802 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 47 transitions, 247 flow [2024-11-13 15:22:23,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-13 15:22:23,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:23,803 INFO L204 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, 1] [2024-11-13 15:22:23,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:22:23,803 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)] === [2024-11-13 15:22:23,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:23,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1910100168, now seen corresponding path program 1 times [2024-11-13 15:22:23,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:23,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957187285] [2024-11-13 15:22:23,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:23,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:24,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:24,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:24,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957187285] [2024-11-13 15:22:24,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957187285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:24,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:24,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:22:24,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251986024] [2024-11-13 15:22:24,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:24,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:22:24,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:24,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:22:24,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:22:24,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-13 15:22:24,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 47 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-13 15:22:24,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:24,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-13 15:22:24,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:24,323 INFO L124 PetriNetUnfolderBase]: 335/792 cut-off events. [2024-11-13 15:22:24,323 INFO L125 PetriNetUnfolderBase]: For 1273/1400 co-relation queries the response was YES. [2024-11-13 15:22:24,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2253 conditions, 792 events. 335/792 cut-off events. For 1273/1400 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4691 event pairs, 105 based on Foata normal form. 13/710 useless extension candidates. Maximal degree in co-relation 2233. Up to 263 conditions per place. [2024-11-13 15:22:24,328 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 18 selfloop transitions, 1 changer transitions 22/68 dead transitions. [2024-11-13 15:22:24,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 387 flow [2024-11-13 15:22:24,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:22:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:22:24,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2024-11-13 15:22:24,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6439393939393939 [2024-11-13 15:22:24,330 INFO L175 Difference]: Start difference. First operand has 66 places, 47 transitions, 247 flow. Second operand 6 states and 170 transitions. [2024-11-13 15:22:24,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 387 flow [2024-11-13 15:22:24,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 68 transitions, 351 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-13 15:22:24,337 INFO L231 Difference]: Finished difference. Result has 70 places, 43 transitions, 206 flow [2024-11-13 15:22:24,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=206, PETRI_PLACES=70, PETRI_TRANSITIONS=43} [2024-11-13 15:22:24,339 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-13 15:22:24,340 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 43 transitions, 206 flow [2024-11-13 15:22:24,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-13 15:22:24,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:22:24,341 INFO L204 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, 1] [2024-11-13 15:22:24,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:22:24,341 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)] === [2024-11-13 15:22:24,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:24,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1399839236, now seen corresponding path program 2 times [2024-11-13 15:22:24,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:22:24,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962265999] [2024-11-13 15:22:24,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:24,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:22:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:24,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:22:24,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:22:24,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962265999] [2024-11-13 15:22:24,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962265999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:24,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:24,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:22:24,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129657546] [2024-11-13 15:22:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:24,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:22:24,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:22:24,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:22:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:22:24,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-13 15:22:24,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 43 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-13 15:22:24,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:22:24,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-13 15:22:24,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:22:24,686 INFO L124 PetriNetUnfolderBase]: 156/399 cut-off events. [2024-11-13 15:22:24,686 INFO L125 PetriNetUnfolderBase]: For 454/510 co-relation queries the response was YES. [2024-11-13 15:22:24,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 399 events. 156/399 cut-off events. For 454/510 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2013 event pairs, 12 based on Foata normal form. 11/365 useless extension candidates. Maximal degree in co-relation 1090. Up to 163 conditions per place. [2024-11-13 15:22:24,688 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2024-11-13 15:22:24,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 52 transitions, 278 flow [2024-11-13 15:22:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:22:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:22:24,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2024-11-13 15:22:24,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-13 15:22:24,690 INFO L175 Difference]: Start difference. First operand has 70 places, 43 transitions, 206 flow. Second operand 6 states and 160 transitions. [2024-11-13 15:22:24,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 52 transitions, 278 flow [2024-11-13 15:22:24,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 52 transitions, 269 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-13 15:22:24,694 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-11-13 15:22:24,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-11-13 15:22:24,695 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-11-13 15:22:24,696 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-11-13 15:22:24,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-13 15:22:24,699 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-13 15:22:24,699 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-13 15:22:24,699 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-13 15:22:24,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-13 15:22:24,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-13 15:22:24,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:22:24,700 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:24,704 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 15:22:24,704 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:22:24,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:22:24 BasicIcfg [2024-11-13 15:22:24,712 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:22:24,712 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:22:24,712 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:22:24,712 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:22:24,713 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:22:19" (3/4) ... [2024-11-13 15:22:24,715 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:22:24,718 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-13 15:22:24,719 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-13 15:22:24,719 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-13 15:22:24,723 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-13 15:22:24,723 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 15:22:24,724 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 15:22:24,724 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 15:22:24,806 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:22:24,807 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:22:24,807 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:22:24,809 INFO L158 Benchmark]: Toolchain (without parser) took 6604.27ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 117.7MB in the beginning and 80.1MB in the end (delta: 37.6MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2024-11-13 15:22:24,810 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:22:24,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.00ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 97.7MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:22:24,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.82ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 95.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:22:24,812 INFO L158 Benchmark]: Boogie Preprocessor took 39.46ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:22:24,812 INFO L158 Benchmark]: RCFGBuilder took 572.28ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 75.6MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:22:24,813 INFO L158 Benchmark]: TraceAbstraction took 5273.22ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 75.0MB in the beginning and 85.4MB in the end (delta: -10.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-11-13 15:22:24,814 INFO L158 Benchmark]: Witness Printer took 95.14ms. Allocated memory is still 176.2MB. Free memory was 85.4MB in the beginning and 80.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:22:24,816 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.00ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 97.7MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.82ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 95.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.46ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 572.28ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 75.6MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5273.22ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 75.0MB in the beginning and 85.4MB in the end (delta: -10.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Witness Printer took 95.14ms. Allocated memory is still 176.2MB. Free memory was 85.4MB in the beginning and 80.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: 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, 68 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 341 mSDsluCounter, 141 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 103 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 704 IncrementalHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 38 mSDtfsCounter, 704 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=7, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 645 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 15:22:24,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d51a27-a3ae-433e-832d-da7a28a0fc79/bin/uautomizer-verify-qhAvR1uOyd/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