./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c --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_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/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_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/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_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/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 d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:56:44,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:56:44,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 14:56:44,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:56:44,531 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:56:44,562 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:56:44,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:56:44,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:56:44,566 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:56:44,566 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:56:44,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:56:44,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:56:44,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:56:44,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:56:44,567 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:56:44,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:56:44,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:56:44,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:56:44,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:56:44,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:56:44,568 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 14:56:44,568 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 14:56:44,568 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 14:56:44,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:56:44,568 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:56:44,569 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:56:44,569 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:56:44,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:56:44,569 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:56:44,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:56:44,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:56:44,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:56:44,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:56:44,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:56:44,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:56:44,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:56:44,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:56:44,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:56:44,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:56:44,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:56:44,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:56:44,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:56:44,573 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_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/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 -> d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 [2024-11-13 14:56:44,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:56:44,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:56:44,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:56:44,945 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:56:44,945 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:56:44,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c Unable to find full path for "g++" [2024-11-13 14:56:47,035 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:56:47,323 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:56:47,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2024-11-13 14:56:47,333 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/data/ad0790b5c/8d0050a660ab42e6994af2c2fa976726/FLAG92de7441b [2024-11-13 14:56:47,353 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/data/ad0790b5c/8d0050a660ab42e6994af2c2fa976726 [2024-11-13 14:56:47,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:56:47,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:56:47,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:56:47,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:56:47,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:56:47,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420d23d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47, skipping insertion in model container [2024-11-13 14:56:47,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,389 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:56:47,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:56:47,698 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:56:47,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:56:47,770 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:56:47,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47 WrapperNode [2024-11-13 14:56:47,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:56:47,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:56:47,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:56:47,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:56:47,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,846 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 198 [2024-11-13 14:56:47,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:56:47,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:56:47,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:56:47,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:56:47,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,865 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,891 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 14:56:47,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:56:47,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:56:47,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:56:47,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:56:47,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (1/1) ... [2024-11-13 14:56:47,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:56:47,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:56:47,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:56:47,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:56:47,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:56:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 14:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 14:56:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 14:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 14:56:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-13 14:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-13 14:56:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:56:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:56:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:56:47,993 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 14:56:48,163 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:56:48,165 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:56:48,786 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:56:48,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:56:49,542 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:56:49,542 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:56:49,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:56:49 BoogieIcfgContainer [2024-11-13 14:56:49,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:56:49,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:56:49,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:56:49,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:56:49,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:56:47" (1/3) ... [2024-11-13 14:56:49,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6652228a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:56:49, skipping insertion in model container [2024-11-13 14:56:49,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:56:47" (2/3) ... [2024-11-13 14:56:49,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6652228a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:56:49, skipping insertion in model container [2024-11-13 14:56:49,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:56:49" (3/3) ... [2024-11-13 14:56:49,584 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2024-11-13 14:56:49,603 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:56:49,606 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-subst.wvr.c that has 4 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 14:56:49,606 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:56:49,719 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 14:56:49,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 63 flow [2024-11-13 14:56:49,814 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-13 14:56:49,817 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 14:56:49,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 18 events. 0/18 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-13 14:56:49,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 21 transitions, 63 flow [2024-11-13 14:56:49,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 17 transitions, 52 flow [2024-11-13 14:56:49,838 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:56:49,859 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;@df2b4ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:56:49,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-13 14:56:49,889 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:56:49,894 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-13 14:56:49,894 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 14:56:49,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:56:49,895 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:49,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:56:49,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:49,905 INFO L85 PathProgramCache]: Analyzing trace with hash 135442657, now seen corresponding path program 1 times [2024-11-13 14:56:49,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:49,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906451604] [2024-11-13 14:56:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:49,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:55,874 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 14:56:55,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:56:55,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906451604] [2024-11-13 14:56:55,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906451604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:56:55,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:56:55,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:56:55,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994288369] [2024-11-13 14:56:55,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:55,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:56:55,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:56:55,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:56:55,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:56:55,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-13 14:56:55,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:56:55,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:56:55,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-13 14:56:55,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:56:56,907 INFO L124 PetriNetUnfolderBase]: 32/85 cut-off events. [2024-11-13 14:56:56,908 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-13 14:56:56,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 85 events. 32/85 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 223 event pairs, 1 based on Foata normal form. 3/88 useless extension candidates. Maximal degree in co-relation 145. Up to 34 conditions per place. [2024-11-13 14:56:56,910 INFO L140 encePairwiseOnDemand]: 15/21 looper letters, 26 selfloop transitions, 6 changer transitions 5/38 dead transitions. [2024-11-13 14:56:56,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 198 flow [2024-11-13 14:56:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:56:56,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:56:56,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2024-11-13 14:56:56,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-13 14:56:56,926 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 52 flow. Second operand 6 states and 70 transitions. [2024-11-13 14:56:56,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 198 flow [2024-11-13 14:56:56,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 38 transitions, 166 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-13 14:56:56,934 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 69 flow [2024-11-13 14:56:56,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2024-11-13 14:56:56,940 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2024-11-13 14:56:56,940 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 69 flow [2024-11-13 14:56:56,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:56:56,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:56:56,941 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:56:56,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:56:56,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:56:56,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:56,942 INFO L85 PathProgramCache]: Analyzing trace with hash 749168443, now seen corresponding path program 2 times [2024-11-13 14:56:56,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:56:56,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234221583] [2024-11-13 14:56:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:56,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:56:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:59,739 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 14:56:59,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:56:59,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234221583] [2024-11-13 14:56:59,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234221583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:56:59,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:56:59,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:56:59,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189253877] [2024-11-13 14:56:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:59,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:56:59,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:56:59,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:56:59,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:56:59,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-13 14:56:59,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 69 flow. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 14:56:59,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:56:59,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-13 14:56:59,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:57:00,931 INFO L124 PetriNetUnfolderBase]: 31/97 cut-off events. [2024-11-13 14:57:00,932 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-13 14:57:00,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 97 events. 31/97 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 321 event pairs, 3 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 256. Up to 46 conditions per place. [2024-11-13 14:57:00,934 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 26 selfloop transitions, 7 changer transitions 7/41 dead transitions. [2024-11-13 14:57:00,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 41 transitions, 213 flow [2024-11-13 14:57:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:57:00,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:57:00,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 75 transitions. [2024-11-13 14:57:00,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2024-11-13 14:57:00,937 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 69 flow. Second operand 7 states and 75 transitions. [2024-11-13 14:57:00,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 41 transitions, 213 flow [2024-11-13 14:57:00,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 41 transitions, 209 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-13 14:57:00,943 INFO L231 Difference]: Finished difference. Result has 34 places, 20 transitions, 98 flow [2024-11-13 14:57:00,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=98, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2024-11-13 14:57:00,944 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2024-11-13 14:57:00,944 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 98 flow [2024-11-13 14:57:00,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 14:57:00,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:57:00,946 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:00,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:57:00,946 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:57:00,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:00,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1628598763, now seen corresponding path program 3 times [2024-11-13 14:57:00,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:57:00,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307570328] [2024-11-13 14:57:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:00,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:57:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:02,952 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 14:57:02,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:57:02,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307570328] [2024-11-13 14:57:02,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307570328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:02,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:57:02,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:57:02,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836486636] [2024-11-13 14:57:02,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:02,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:57:02,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:57:02,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:57:02,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:57:02,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-13 14:57:02,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:57:02,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:57:02,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-13 14:57:02,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:57:03,530 INFO L124 PetriNetUnfolderBase]: 28/87 cut-off events. [2024-11-13 14:57:03,531 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-13 14:57:03,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 87 events. 28/87 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 268 event pairs, 1 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 284. Up to 42 conditions per place. [2024-11-13 14:57:03,535 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 23 selfloop transitions, 6 changer transitions 9/39 dead transitions. [2024-11-13 14:57:03,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 235 flow [2024-11-13 14:57:03,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:57:03,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:57:03,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2024-11-13 14:57:03,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2024-11-13 14:57:03,537 INFO L175 Difference]: Start difference. First operand has 34 places, 20 transitions, 98 flow. Second operand 6 states and 68 transitions. [2024-11-13 14:57:03,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 235 flow [2024-11-13 14:57:03,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 220 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-13 14:57:03,541 INFO L231 Difference]: Finished difference. Result has 37 places, 19 transitions, 97 flow [2024-11-13 14:57:03,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=37, PETRI_TRANSITIONS=19} [2024-11-13 14:57:03,542 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2024-11-13 14:57:03,542 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 19 transitions, 97 flow [2024-11-13 14:57:03,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:57:03,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:57:03,542 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:03,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:57:03,543 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:57:03,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1604475097, now seen corresponding path program 4 times [2024-11-13 14:57:03,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:57:03,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211076469] [2024-11-13 14:57:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:57:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:07,688 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 14:57:07,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:57:07,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211076469] [2024-11-13 14:57:07,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211076469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:07,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:57:07,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:57:07,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917999914] [2024-11-13 14:57:07,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:07,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:57:07,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:57:07,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:57:07,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:57:07,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-13 14:57:07,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 19 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 14:57:07,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:57:07,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-13 14:57:07,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:57:09,980 INFO L124 PetriNetUnfolderBase]: 15/51 cut-off events. [2024-11-13 14:57:09,981 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-11-13 14:57:09,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 51 events. 15/51 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 110 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 179. Up to 16 conditions per place. [2024-11-13 14:57:09,982 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 16 selfloop transitions, 5 changer transitions 10/32 dead transitions. [2024-11-13 14:57:09,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 200 flow [2024-11-13 14:57:09,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:57:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:57:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 66 transitions. [2024-11-13 14:57:09,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4489795918367347 [2024-11-13 14:57:09,984 INFO L175 Difference]: Start difference. First operand has 37 places, 19 transitions, 97 flow. Second operand 7 states and 66 transitions. [2024-11-13 14:57:09,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 200 flow [2024-11-13 14:57:09,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 179 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-13 14:57:09,987 INFO L231 Difference]: Finished difference. Result has 36 places, 17 transitions, 76 flow [2024-11-13 14:57:09,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=76, PETRI_PLACES=36, PETRI_TRANSITIONS=17} [2024-11-13 14:57:09,988 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2024-11-13 14:57:09,988 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 17 transitions, 76 flow [2024-11-13 14:57:09,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 14:57:09,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:57:09,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:09,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:57:09,989 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:57:09,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:09,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1173832389, now seen corresponding path program 5 times [2024-11-13 14:57:09,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:57:09,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628402858] [2024-11-13 14:57:09,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:09,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:57:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:11,325 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 14:57:11,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:57:11,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628402858] [2024-11-13 14:57:11,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628402858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:11,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:57:11,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:57:11,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132725377] [2024-11-13 14:57:11,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:11,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:57:11,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:57:11,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:57:11,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:57:11,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-13 14:57:11,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 17 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:57:11,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:57:11,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-13 14:57:11,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:57:11,891 INFO L124 PetriNetUnfolderBase]: 8/37 cut-off events. [2024-11-13 14:57:11,891 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-13 14:57:11,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 37 events. 8/37 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 125. Up to 17 conditions per place. [2024-11-13 14:57:11,892 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 13 selfloop transitions, 3 changer transitions 10/27 dead transitions. [2024-11-13 14:57:11,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 160 flow [2024-11-13 14:57:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:57:11,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:57:11,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2024-11-13 14:57:11,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-11-13 14:57:11,894 INFO L175 Difference]: Start difference. First operand has 36 places, 17 transitions, 76 flow. Second operand 6 states and 57 transitions. [2024-11-13 14:57:11,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 160 flow [2024-11-13 14:57:11,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 129 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-13 14:57:11,896 INFO L231 Difference]: Finished difference. Result has 32 places, 15 transitions, 53 flow [2024-11-13 14:57:11,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=53, PETRI_PLACES=32, PETRI_TRANSITIONS=15} [2024-11-13 14:57:11,897 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2024-11-13 14:57:11,897 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 15 transitions, 53 flow [2024-11-13 14:57:11,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:57:11,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:57:11,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:57:11,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:57:11,898 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:57:11,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:11,899 INFO L85 PathProgramCache]: Analyzing trace with hash -318525735, now seen corresponding path program 6 times [2024-11-13 14:57:11,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:57:11,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440701643] [2024-11-13 14:57:11,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:11,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:57:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:14,802 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 14:57:14,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:57:14,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440701643] [2024-11-13 14:57:14,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440701643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:14,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:57:14,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:57:14,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905931254] [2024-11-13 14:57:14,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:14,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:57:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:57:14,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:57:14,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:57:14,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-13 14:57:14,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 15 transitions, 53 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:57:14,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:57:14,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-13 14:57:14,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:57:15,445 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-11-13 14:57:15,445 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 14:57:15,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 19 events. 3/19 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 58. Up to 7 conditions per place. [2024-11-13 14:57:15,446 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2024-11-13 14:57:15,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 16 transitions, 85 flow [2024-11-13 14:57:15,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:57:15,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:57:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2024-11-13 14:57:15,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.373015873015873 [2024-11-13 14:57:15,449 INFO L175 Difference]: Start difference. First operand has 32 places, 15 transitions, 53 flow. Second operand 6 states and 47 transitions. [2024-11-13 14:57:15,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 16 transitions, 85 flow [2024-11-13 14:57:15,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 16 transitions, 71 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-13 14:57:15,451 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2024-11-13 14:57:15,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2024-11-13 14:57:15,452 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2024-11-13 14:57:15,455 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2024-11-13 14:57:15,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:57:15,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-13 14:57:15,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-13 14:57:15,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-13 14:57:15,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-13 14:57:15,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-13 14:57:15,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:57:15,461 INFO L407 BasicCegarLoop]: Path program histogram: [6] [2024-11-13 14:57:15,465 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 14:57:15,465 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:57:15,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:57:15 BasicIcfg [2024-11-13 14:57:15,472 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:57:15,472 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:57:15,473 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:57:15,473 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:57:15,474 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:56:49" (3/4) ... [2024-11-13 14:57:15,480 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 14:57:15,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-13 14:57:15,484 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-13 14:57:15,484 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-13 14:57:15,489 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 95 nodes and edges [2024-11-13 14:57:15,493 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-13 14:57:15,493 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-13 14:57:15,493 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 14:57:15,604 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:57:15,605 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 14:57:15,605 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:57:15,606 INFO L158 Benchmark]: Toolchain (without parser) took 28248.79ms. Allocated memory was 117.4MB in the beginning and 520.1MB in the end (delta: 402.7MB). Free memory was 91.8MB in the beginning and 415.5MB in the end (delta: -323.6MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2024-11-13 14:57:15,607 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:57:15,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.70ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 79.6MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:57:15,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.99ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:57:15,609 INFO L158 Benchmark]: Boogie Preprocessor took 60.09ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:57:15,610 INFO L158 Benchmark]: RCFGBuilder took 1635.13ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 32.5MB in the end (delta: 42.9MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2024-11-13 14:57:15,610 INFO L158 Benchmark]: TraceAbstraction took 25924.81ms. Allocated memory was 117.4MB in the beginning and 520.1MB in the end (delta: 402.7MB). Free memory was 32.5MB in the beginning and 419.7MB in the end (delta: -387.2MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2024-11-13 14:57:15,612 INFO L158 Benchmark]: Witness Printer took 132.59ms. Allocated memory is still 520.1MB. Free memory was 419.7MB in the beginning and 415.5MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:57:15,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.70ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 79.6MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.99ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.09ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1635.13ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 32.5MB in the end (delta: 42.9MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * TraceAbstraction took 25924.81ms. Allocated memory was 117.4MB in the beginning and 520.1MB in the end (delta: 402.7MB). Free memory was 32.5MB in the beginning and 419.7MB in the end (delta: -387.2MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * Witness Printer took 132.59ms. Allocated memory is still 520.1MB. Free memory was 419.7MB in the beginning and 415.5MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 61]: 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, 31 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: 25.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 373 IncrementalHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 373 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=2, InterpolantAutomatonStates: 38, 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, 0.8s SatisfiabilityAnalysisTime, 18.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 3348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 14:57:15,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f619731-dbea-40a5-bb81-7efa7fcf0dbf/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