./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/clever.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/clever.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1b460e4dbdd0bf3097d690d1720c7a2141566e2aa4ca1ed003c7fa25661851d
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:28:41,642 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:28:41,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-24 00:28:41,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:28:41,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:28:41,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:28:41,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:28:41,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:28:41,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:28:41,771 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 00:28:41,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:28:41,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:28:41,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:28:41,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 00:28:41,774 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 00:28:41,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:28:41,775 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 00:28:41,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 00:28:41,775 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 00:28:41,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 00:28:41,775 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-24 00:28:41,775 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-24 00:28:41,776 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-24 00:28:41,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:28:41,776 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 00:28:41,776 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 00:28:41,776 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 00:28:41,776 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:28:41,776 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 00:28:41,776 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:28:41,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:28:41,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:28:41,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:28:41,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:28:41,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:28:41,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:28:41,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:28:41,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:28:41,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:28:41,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:28:41,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:28:41,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 00:28:41,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:28:41,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:28:41,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:28:41,780 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:28:41,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:28:41,780 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_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b460e4dbdd0bf3097d690d1720c7a2141566e2aa4ca1ed003c7fa25661851d
[2024-11-24 00:28:42,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:28:42,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:28:42,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:28:42,122 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 00:28:42,122 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 00:28:42,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/weaver/clever.wvr.c
[2024-11-24 00:28:45,201 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/data/34c1bb410/a4896e7b68784693a267c837aacfad1f/FLAG558e56713
[2024-11-24 00:28:45,504 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 00:28:45,504 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/sv-benchmarks/c/weaver/clever.wvr.c
[2024-11-24 00:28:45,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/data/34c1bb410/a4896e7b68784693a267c837aacfad1f/FLAG558e56713
[2024-11-24 00:28:45,535 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/data/34c1bb410/a4896e7b68784693a267c837aacfad1f
[2024-11-24 00:28:45,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:28:45,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:28:45,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:28:45,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:28:45,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:28:45,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a6ddc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45, skipping insertion in model container
[2024-11-24 00:28:45,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,573 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:28:45,804 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:28:45,818 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 00:28:45,847 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:28:45,878 INFO L204 MainTranslator]: Completed translation
[2024-11-24 00:28:45,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45 WrapperNode
[2024-11-24 00:28:45,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:28:45,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:28:45,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:28:45,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:28:45,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,930 INFO L138 Inliner]: procedures = 18, calls = 12, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 74
[2024-11-24 00:28:45,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:28:45,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:28:45,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:28:45,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:28:45,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,946 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,966 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-24 00:28:45,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,978 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:45,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:28:45,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:28:45,995 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:28:45,995 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:28:45,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (1/1) ...
[2024-11-24 00:28:46,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:28:46,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:28:46,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:28:46,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:28:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:28:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-24 00:28:46,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-24 00:28:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-24 00:28:46,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-24 00:28:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 00:28:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:28:46,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:28:46,073 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-24 00:28:46,163 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 00:28:46,165 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:28:46,403 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-24 00:28:46,403 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 00:28:46,747 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:28:46,747 INFO L312 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-24 00:28:46,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:28:46 BoogieIcfgContainer
[2024-11-24 00:28:46,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:28:46,751 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:28:46,751 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:28:46,756 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:28:46,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:28:45" (1/3) ...
[2024-11-24 00:28:46,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457872af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:28:46, skipping insertion in model container
[2024-11-24 00:28:46,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:28:45" (2/3) ...
[2024-11-24 00:28:46,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457872af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:28:46, skipping insertion in model container
[2024-11-24 00:28:46,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:28:46" (3/3) ...
[2024-11-24 00:28:46,759 INFO L128 eAbstractionObserver]: Analyzing ICFG clever.wvr.c
[2024-11-24 00:28:46,776 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:28:46,778 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG clever.wvr.c that has 3 procedures, 20 locations, 1 initial locations, 3 loop locations, and 2 error locations.
[2024-11-24 00:28:46,778 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-24 00:28:46,842 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-11-24 00:28:46,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 58 flow
[2024-11-24 00:28:46,956 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events.
[2024-11-24 00:28:46,958 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-24 00:28:46,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 3/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 13. Up to 2 conditions per place.
[2024-11-24 00:28:46,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 58 flow
[2024-11-24 00:28:46,965 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 50 flow
[2024-11-24 00:28:46,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:28:46,987 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;@6f28ea04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:28:46,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-11-24 00:28:46,996 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-24 00:28:46,996 INFO L124 PetriNetUnfolderBase]: 3/16 cut-off events.
[2024-11-24 00:28:46,996 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-24 00:28:46,996 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:28:46,997 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:28:46,997 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:28:47,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:28:47,004 INFO L85 PathProgramCache]: Analyzing trace with hash -806847430, now seen corresponding path program 1 times
[2024-11-24 00:28:47,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:28:47,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405709403]
[2024-11-24 00:28:47,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:28:47,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:28:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:28:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:47,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:28:47,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405709403]
[2024-11-24 00:28:47,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405709403] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:28:47,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:28:47,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:28:47,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073126514]
[2024-11-24 00:28:47,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:28:47,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:28:47,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:28:47,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:28:47,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:28:47,580 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:28:47,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:47,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:28:47,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:28:47,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:28:47,748 INFO L124 PetriNetUnfolderBase]: 106/171 cut-off events.
[2024-11-24 00:28:47,749 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES.
[2024-11-24 00:28:47,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 171 events. 106/171 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 510 event pairs, 19 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 318. Up to 110 conditions per place.
[2024-11-24 00:28:47,755 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 21 selfloop transitions, 3 changer transitions 1/28 dead transitions.
[2024-11-24 00:28:47,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 28 transitions, 127 flow
[2024-11-24 00:28:47,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 00:28:47,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 00:28:47,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions.
[2024-11-24 00:28:47,772 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818
[2024-11-24 00:28:47,774 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 50 flow. Second operand 3 states and 45 transitions.
[2024-11-24 00:28:47,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 28 transitions, 127 flow
[2024-11-24 00:28:47,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 28 transitions, 113 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-24 00:28:47,786 INFO L231 Difference]: Finished difference. Result has 20 places, 19 transitions, 57 flow
[2024-11-24 00:28:47,789 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=20, PETRI_TRANSITIONS=19}
[2024-11-24 00:28:47,797 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, -3 predicate places.
[2024-11-24 00:28:47,797 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 19 transitions, 57 flow
[2024-11-24 00:28:47,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:47,797 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:28:47,799 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:28:47,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 00:28:47,800 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:28:47,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:28:47,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1928839812, now seen corresponding path program 1 times
[2024-11-24 00:28:47,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:28:47,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947881563]
[2024-11-24 00:28:47,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:28:47,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:28:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:28:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:48,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:28:48,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947881563]
[2024-11-24 00:28:48,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947881563] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:28:48,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:28:48,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:28:48,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425898007]
[2024-11-24 00:28:48,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:28:48,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:28:48,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:28:48,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:28:48,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:28:48,012 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:28:48,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 19 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:48,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:28:48,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:28:48,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:28:48,231 INFO L124 PetriNetUnfolderBase]: 145/242 cut-off events.
[2024-11-24 00:28:48,232 INFO L125 PetriNetUnfolderBase]: For 52/55 co-relation queries the response was YES.
[2024-11-24 00:28:48,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 579 conditions, 242 events. 145/242 cut-off events. For 52/55 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 813 event pairs, 12 based on Foata normal form. 7/224 useless extension candidates. Maximal degree in co-relation 172. Up to 96 conditions per place.
[2024-11-24 00:28:48,237 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 37 selfloop transitions, 7 changer transitions 2/49 dead transitions.
[2024-11-24 00:28:48,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 49 transitions, 236 flow
[2024-11-24 00:28:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:28:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:28:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 71 transitions.
[2024-11-24 00:28:48,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6454545454545455
[2024-11-24 00:28:48,243 INFO L175 Difference]: Start difference. First operand has 20 places, 19 transitions, 57 flow. Second operand 5 states and 71 transitions.
[2024-11-24 00:28:48,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 49 transitions, 236 flow
[2024-11-24 00:28:48,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 49 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 00:28:48,248 INFO L231 Difference]: Finished difference. Result has 26 places, 25 transitions, 105 flow
[2024-11-24 00:28:48,248 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=105, PETRI_PLACES=26, PETRI_TRANSITIONS=25}
[2024-11-24 00:28:48,249 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places.
[2024-11-24 00:28:48,250 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 25 transitions, 105 flow
[2024-11-24 00:28:48,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:48,250 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:28:48,250 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:28:48,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 00:28:48,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:28:48,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:28:48,253 INFO L85 PathProgramCache]: Analyzing trace with hash -69603818, now seen corresponding path program 2 times
[2024-11-24 00:28:48,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:28:48,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431169258]
[2024-11-24 00:28:48,254 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:28:48,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:28:48,296 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:28:48,300 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:28:48,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:48,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:28:48,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431169258]
[2024-11-24 00:28:48,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431169258] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:28:48,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17491983]
[2024-11-24 00:28:48,369 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:28:48,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:48,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:28:48,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:28:48,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 00:28:48,490 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:28:48,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:28:48,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:28:48,498 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:28:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:48,639 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:28:48,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:48,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17491983] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:28:48,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:28:48,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5
[2024-11-24 00:28:48,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440372546]
[2024-11-24 00:28:48,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:28:48,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-24 00:28:48,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:28:48,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-24 00:28:48,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:28:48,681 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:28:48,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 25 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:48,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:28:48,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:28:48,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:28:48,870 INFO L124 PetriNetUnfolderBase]: 145/239 cut-off events.
[2024-11-24 00:28:48,870 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES.
[2024-11-24 00:28:48,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 239 events. 145/239 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 778 event pairs, 15 based on Foata normal form. 8/247 useless extension candidates. Maximal degree in co-relation 306. Up to 105 conditions per place.
[2024-11-24 00:28:48,874 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 35 selfloop transitions, 15 changer transitions 5/58 dead transitions.
[2024-11-24 00:28:48,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 58 transitions, 348 flow
[2024-11-24 00:28:48,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-24 00:28:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-11-24 00:28:48,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 87 transitions.
[2024-11-24 00:28:48,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.564935064935065
[2024-11-24 00:28:48,876 INFO L175 Difference]: Start difference. First operand has 26 places, 25 transitions, 105 flow. Second operand 7 states and 87 transitions.
[2024-11-24 00:28:48,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 58 transitions, 348 flow
[2024-11-24 00:28:48,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 58 transitions, 348 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-24 00:28:48,880 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 211 flow
[2024-11-24 00:28:48,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=211, PETRI_PLACES=36, PETRI_TRANSITIONS=33}
[2024-11-24 00:28:48,881 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 13 predicate places.
[2024-11-24 00:28:48,881 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 211 flow
[2024-11-24 00:28:48,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:48,881 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:28:48,881 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:28:48,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-24 00:28:49,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:49,082 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:28:49,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:28:49,083 INFO L85 PathProgramCache]: Analyzing trace with hash -221049098, now seen corresponding path program 1 times
[2024-11-24 00:28:49,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:28:49,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279881622]
[2024-11-24 00:28:49,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:28:49,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:28:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:28:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:28:49,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:28:49,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279881622]
[2024-11-24 00:28:49,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279881622] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:28:49,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045693182]
[2024-11-24 00:28:49,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:28:49,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:49,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:28:49,241 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:28:49,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 00:28:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:28:49,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-24 00:28:49,326 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:28:49,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:28:49,456 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:28:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:28:49,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045693182] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:28:49,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:28:49,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5
[2024-11-24 00:28:49,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590892267]
[2024-11-24 00:28:49,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:28:49,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-24 00:28:49,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:28:49,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-24 00:28:49,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:28:49,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:28:49,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:49,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:28:49,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:28:49,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:28:49,685 INFO L124 PetriNetUnfolderBase]: 127/223 cut-off events.
[2024-11-24 00:28:49,685 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES.
[2024-11-24 00:28:49,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 877 conditions, 223 events. 127/223 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 678 event pairs, 2 based on Foata normal form. 14/237 useless extension candidates. Maximal degree in co-relation 543. Up to 91 conditions per place.
[2024-11-24 00:28:49,689 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 41 selfloop transitions, 9 changer transitions 3/56 dead transitions.
[2024-11-24 00:28:49,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 56 transitions, 423 flow
[2024-11-24 00:28:49,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:28:49,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:28:49,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 69 transitions.
[2024-11-24 00:28:49,694 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6272727272727273
[2024-11-24 00:28:49,694 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 211 flow. Second operand 5 states and 69 transitions.
[2024-11-24 00:28:49,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 56 transitions, 423 flow
[2024-11-24 00:28:49,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 56 transitions, 411 flow, removed 6 selfloop flow, removed 0 redundant places.
[2024-11-24 00:28:49,707 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 237 flow
[2024-11-24 00:28:49,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=41, PETRI_TRANSITIONS=34}
[2024-11-24 00:28:49,708 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 18 predicate places.
[2024-11-24 00:28:49,708 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 237 flow
[2024-11-24 00:28:49,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:49,708 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:28:49,708 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:28:49,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-24 00:28:49,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:49,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:28:49,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:28:49,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1384222301, now seen corresponding path program 1 times
[2024-11-24 00:28:49,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:28:49,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524978369]
[2024-11-24 00:28:49,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:28:49,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:28:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:28:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:50,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:28:50,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524978369]
[2024-11-24 00:28:50,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524978369] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:28:50,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244764551]
[2024-11-24 00:28:50,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:28:50,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:50,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:28:50,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:28:50,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 00:28:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:28:50,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 00:28:50,472 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:28:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:50,775 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:28:50,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:50,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244764551] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:28:50,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:28:50,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12
[2024-11-24 00:28:50,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403916962]
[2024-11-24 00:28:50,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:28:50,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-24 00:28:50,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:28:50,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-24 00:28:50,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2024-11-24 00:28:50,983 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:28:50,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 237 flow. Second operand has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:50,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:28:50,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:28:50,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:28:51,418 INFO L124 PetriNetUnfolderBase]: 249/435 cut-off events.
[2024-11-24 00:28:51,418 INFO L125 PetriNetUnfolderBase]: For 851/851 co-relation queries the response was YES.
[2024-11-24 00:28:51,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1800 conditions, 435 events. 249/435 cut-off events. For 851/851 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1674 event pairs, 10 based on Foata normal form. 14/449 useless extension candidates. Maximal degree in co-relation 1015. Up to 176 conditions per place.
[2024-11-24 00:28:51,425 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 62 selfloop transitions, 19 changer transitions 21/105 dead transitions.
[2024-11-24 00:28:51,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 105 transitions, 873 flow
[2024-11-24 00:28:51,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-24 00:28:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-11-24 00:28:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 128 transitions.
[2024-11-24 00:28:51,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465
[2024-11-24 00:28:51,431 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 237 flow. Second operand 9 states and 128 transitions.
[2024-11-24 00:28:51,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 105 transitions, 873 flow
[2024-11-24 00:28:51,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 105 transitions, 841 flow, removed 4 selfloop flow, removed 4 redundant places.
[2024-11-24 00:28:51,446 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 409 flow
[2024-11-24 00:28:51,447 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=409, PETRI_PLACES=51, PETRI_TRANSITIONS=47}
[2024-11-24 00:28:51,448 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 28 predicate places.
[2024-11-24 00:28:51,450 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 409 flow
[2024-11-24 00:28:51,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:51,451 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:28:51,451 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:28:51,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-24 00:28:51,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:51,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:28:51,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:28:51,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2024145486, now seen corresponding path program 2 times
[2024-11-24 00:28:51,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:28:51,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133654916]
[2024-11-24 00:28:51,653 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:28:51,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:28:51,669 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:28:51,669 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:28:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:28:51,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:28:51,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133654916]
[2024-11-24 00:28:51,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133654916] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:28:51,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:28:51,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:28:51,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757585053]
[2024-11-24 00:28:51,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:28:51,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:28:51,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:28:51,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:28:51,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:28:51,758 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:28:51,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 409 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:51,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:28:51,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:28:51,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:28:51,896 INFO L124 PetriNetUnfolderBase]: 192/331 cut-off events.
[2024-11-24 00:28:51,896 INFO L125 PetriNetUnfolderBase]: For 1069/1073 co-relation queries the response was YES.
[2024-11-24 00:28:51,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 331 events. 192/331 cut-off events. For 1069/1073 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1127 event pairs, 25 based on Foata normal form. 3/334 useless extension candidates. Maximal degree in co-relation 1490. Up to 152 conditions per place.
[2024-11-24 00:28:51,902 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 53 selfloop transitions, 12 changer transitions 2/70 dead transitions.
[2024-11-24 00:28:51,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 70 transitions, 696 flow
[2024-11-24 00:28:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:28:51,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:28:51,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions.
[2024-11-24 00:28:51,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5818181818181818
[2024-11-24 00:28:51,904 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 409 flow. Second operand 5 states and 64 transitions.
[2024-11-24 00:28:51,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 70 transitions, 696 flow
[2024-11-24 00:28:51,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 70 transitions, 639 flow, removed 25 selfloop flow, removed 3 redundant places.
[2024-11-24 00:28:51,914 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 453 flow
[2024-11-24 00:28:51,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=453, PETRI_PLACES=54, PETRI_TRANSITIONS=51}
[2024-11-24 00:28:51,916 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 31 predicate places.
[2024-11-24 00:28:51,916 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 453 flow
[2024-11-24 00:28:51,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:51,916 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:28:51,916 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:28:51,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 00:28:51,917 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:28:51,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:28:51,918 INFO L85 PathProgramCache]: Analyzing trace with hash 784943093, now seen corresponding path program 2 times
[2024-11-24 00:28:51,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:28:51,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990512312]
[2024-11-24 00:28:51,918 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:28:51,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:28:51,937 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:28:51,937 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:28:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:52,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:28:52,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990512312]
[2024-11-24 00:28:52,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990512312] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:28:52,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466109980]
[2024-11-24 00:28:52,307 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:28:52,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:52,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:28:52,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:28:52,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-24 00:28:52,380 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:28:52,380 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:28:52,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-24 00:28:52,383 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:28:52,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:52,699 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:28:52,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:52,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466109980] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:28:52,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:28:52,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12
[2024-11-24 00:28:52,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3437339]
[2024-11-24 00:28:52,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:28:52,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-24 00:28:52,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:28:52,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-24 00:28:52,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2024-11-24 00:28:52,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:28:52,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 453 flow. Second operand has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 13 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:52,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:28:52,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:28:52,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:28:53,955 INFO L124 PetriNetUnfolderBase]: 624/1068 cut-off events.
[2024-11-24 00:28:53,956 INFO L125 PetriNetUnfolderBase]: For 4367/4367 co-relation queries the response was YES.
[2024-11-24 00:28:53,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5034 conditions, 1068 events. 624/1068 cut-off events. For 4367/4367 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5021 event pairs, 46 based on Foata normal form. 8/1076 useless extension candidates. Maximal degree in co-relation 4328. Up to 321 conditions per place.
[2024-11-24 00:28:53,971 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 134 selfloop transitions, 86 changer transitions 11/234 dead transitions.
[2024-11-24 00:28:53,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 234 transitions, 2363 flow
[2024-11-24 00:28:53,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-24 00:28:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2024-11-24 00:28:53,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 240 transitions.
[2024-11-24 00:28:53,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6417112299465241
[2024-11-24 00:28:53,974 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 453 flow. Second operand 17 states and 240 transitions.
[2024-11-24 00:28:53,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 234 transitions, 2363 flow
[2024-11-24 00:28:53,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 234 transitions, 2260 flow, removed 41 selfloop flow, removed 1 redundant places.
[2024-11-24 00:28:53,999 INFO L231 Difference]: Finished difference. Result has 80 places, 135 transitions, 1585 flow
[2024-11-24 00:28:53,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1585, PETRI_PLACES=80, PETRI_TRANSITIONS=135}
[2024-11-24 00:28:54,002 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 57 predicate places.
[2024-11-24 00:28:54,002 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 135 transitions, 1585 flow
[2024-11-24 00:28:54,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 13 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:54,003 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:28:54,003 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:28:54,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-24 00:28:54,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:54,204 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:28:54,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:28:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash 10525621, now seen corresponding path program 3 times
[2024-11-24 00:28:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:28:54,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347353842]
[2024-11-24 00:28:54,205 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:28:54,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:28:54,220 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-24 00:28:54,220 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:28:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:54,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:28:54,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347353842]
[2024-11-24 00:28:54,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347353842] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:28:54,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401821999]
[2024-11-24 00:28:54,534 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:28:54,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:54,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:28:54,536 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:28:54,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-24 00:28:54,601 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-24 00:28:54,602 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:28:54,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-24 00:28:54,604 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:28:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:54,835 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:28:55,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:55,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401821999] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:28:55,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:28:55,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12
[2024-11-24 00:28:55,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144388197]
[2024-11-24 00:28:55,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:28:55,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-24 00:28:55,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:28:55,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-24 00:28:55,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2024-11-24 00:28:55,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:28:55,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 135 transitions, 1585 flow. Second operand has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 13 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:55,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:28:55,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:28:55,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:28:56,116 INFO L124 PetriNetUnfolderBase]: 1342/2300 cut-off events.
[2024-11-24 00:28:56,116 INFO L125 PetriNetUnfolderBase]: For 11578/11578 co-relation queries the response was YES.
[2024-11-24 00:28:56,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12458 conditions, 2300 events. 1342/2300 cut-off events. For 11578/11578 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 12720 event pairs, 116 based on Foata normal form. 7/2307 useless extension candidates. Maximal degree in co-relation 11372. Up to 713 conditions per place.
[2024-11-24 00:28:56,145 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 183 selfloop transitions, 151 changer transitions 11/348 dead transitions.
[2024-11-24 00:28:56,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 348 transitions, 4525 flow
[2024-11-24 00:28:56,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-24 00:28:56,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-11-24 00:28:56,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 155 transitions.
[2024-11-24 00:28:56,148 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.640495867768595
[2024-11-24 00:28:56,148 INFO L175 Difference]: Start difference. First operand has 80 places, 135 transitions, 1585 flow. Second operand 11 states and 155 transitions.
[2024-11-24 00:28:56,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 348 transitions, 4525 flow
[2024-11-24 00:28:56,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 348 transitions, 4231 flow, removed 144 selfloop flow, removed 2 redundant places.
[2024-11-24 00:28:56,207 INFO L231 Difference]: Finished difference. Result has 93 places, 241 transitions, 3341 flow
[2024-11-24 00:28:56,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=1435, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3341, PETRI_PLACES=93, PETRI_TRANSITIONS=241}
[2024-11-24 00:28:56,208 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 70 predicate places.
[2024-11-24 00:28:56,208 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 241 transitions, 3341 flow
[2024-11-24 00:28:56,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 13 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:56,208 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:28:56,208 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:28:56,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-24 00:28:56,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:56,409 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:28:56,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:28:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2023107513, now seen corresponding path program 1 times
[2024-11-24 00:28:56,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:28:56,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240866573]
[2024-11-24 00:28:56,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:28:56,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:28:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:28:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:56,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:28:56,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240866573]
[2024-11-24 00:28:56,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240866573] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:28:56,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071049777]
[2024-11-24 00:28:56,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:28:56,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:28:56,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:28:56,937 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:28:56,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-24 00:28:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:28:57,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-24 00:28:57,051 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:28:58,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:28:58,153 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:28:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:28:58,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071049777] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:28:58,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:28:58,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 5] total 16
[2024-11-24 00:28:58,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746851230]
[2024-11-24 00:28:58,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:28:58,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-24 00:28:58,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:28:58,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-24 00:28:58,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272
[2024-11-24 00:28:58,760 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:28:58,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 241 transitions, 3341 flow. Second operand has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 17 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:28:58,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:28:58,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:28:58,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:29:00,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-24 00:29:08,398 INFO L124 PetriNetUnfolderBase]: 2097/3586 cut-off events.
[2024-11-24 00:29:08,398 INFO L125 PetriNetUnfolderBase]: For 24154/24154 co-relation queries the response was YES.
[2024-11-24 00:29:08,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21352 conditions, 3586 events. 2097/3586 cut-off events. For 24154/24154 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 20364 event pairs, 163 based on Foata normal form. 16/3602 useless extension candidates. Maximal degree in co-relation 20076. Up to 2101 conditions per place.
[2024-11-24 00:29:08,454 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 327 selfloop transitions, 164 changer transitions 6/500 dead transitions.
[2024-11-24 00:29:08,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 500 transitions, 7277 flow
[2024-11-24 00:29:08,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-11-24 00:29:08,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states.
[2024-11-24 00:29:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 261 transitions.
[2024-11-24 00:29:08,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6244019138755981
[2024-11-24 00:29:08,460 INFO L175 Difference]: Start difference. First operand has 93 places, 241 transitions, 3341 flow. Second operand 19 states and 261 transitions.
[2024-11-24 00:29:08,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 500 transitions, 7277 flow
[2024-11-24 00:29:08,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 500 transitions, 7134 flow, removed 60 selfloop flow, removed 6 redundant places.
[2024-11-24 00:29:08,586 INFO L231 Difference]: Finished difference. Result has 116 places, 365 transitions, 5788 flow
[2024-11-24 00:29:08,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=3256, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5788, PETRI_PLACES=116, PETRI_TRANSITIONS=365}
[2024-11-24 00:29:08,589 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 93 predicate places.
[2024-11-24 00:29:08,589 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 365 transitions, 5788 flow
[2024-11-24 00:29:08,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 17 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:08,590 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:29:08,590 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:29:08,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-24 00:29:08,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:29:08,792 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:29:08,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:29:08,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1380238217, now seen corresponding path program 2 times
[2024-11-24 00:29:08,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:29:08,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716035403]
[2024-11-24 00:29:08,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:29:08,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:29:08,823 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:29:08,823 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:29:09,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:29:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716035403]
[2024-11-24 00:29:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716035403] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:29:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068570120]
[2024-11-24 00:29:09,353 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:29:09,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:29:09,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:29:09,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:29:09,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-24 00:29:09,432 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:29:09,432 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:09,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-24 00:29:09,434 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:29:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:29:10,105 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:29:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:10,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068570120] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:29:10,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:29:10,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 5] total 16
[2024-11-24 00:29:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177925054]
[2024-11-24 00:29:10,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:29:10,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-24 00:29:10,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:29:10,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-24 00:29:10,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272
[2024-11-24 00:29:10,607 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:29:10,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 365 transitions, 5788 flow. Second operand has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 17 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:10,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:29:10,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:29:10,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:29:14,352 INFO L124 PetriNetUnfolderBase]: 2703/4661 cut-off events.
[2024-11-24 00:29:14,352 INFO L125 PetriNetUnfolderBase]: For 42180/42180 co-relation queries the response was YES.
[2024-11-24 00:29:14,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30205 conditions, 4661 events. 2703/4661 cut-off events. For 42180/42180 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 28458 event pairs, 268 based on Foata normal form. 25/4686 useless extension candidates. Maximal degree in co-relation 29483. Up to 3433 conditions per place.
[2024-11-24 00:29:14,408 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 440 selfloop transitions, 174 changer transitions 7/624 dead transitions.
[2024-11-24 00:29:14,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 624 transitions, 10277 flow
[2024-11-24 00:29:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states.
[2024-11-24 00:29:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2024-11-24 00:29:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 338 transitions.
[2024-11-24 00:29:14,411 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6145454545454545
[2024-11-24 00:29:14,411 INFO L175 Difference]: Start difference. First operand has 116 places, 365 transitions, 5788 flow. Second operand 25 states and 338 transitions.
[2024-11-24 00:29:14,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 624 transitions, 10277 flow
[2024-11-24 00:29:14,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 624 transitions, 9832 flow, removed 209 selfloop flow, removed 5 redundant places.
[2024-11-24 00:29:14,619 INFO L231 Difference]: Finished difference. Result has 146 places, 501 transitions, 8532 flow
[2024-11-24 00:29:14,619 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=5404, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8532, PETRI_PLACES=146, PETRI_TRANSITIONS=501}
[2024-11-24 00:29:14,621 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 123 predicate places.
[2024-11-24 00:29:14,621 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 501 transitions, 8532 flow
[2024-11-24 00:29:14,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 17 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:14,622 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:29:14,622 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:29:14,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-24 00:29:14,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-24 00:29:14,823 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:29:14,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:29:14,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1859379326, now seen corresponding path program 3 times
[2024-11-24 00:29:14,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:29:14,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308260997]
[2024-11-24 00:29:14,824 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:29:14,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:29:14,835 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-24 00:29:14,836 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:14,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:29:14,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308260997]
[2024-11-24 00:29:14,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308260997] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:29:14,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122066734]
[2024-11-24 00:29:14,906 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:29:14,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:29:14,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:29:14,908 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:29:14,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-24 00:29:14,973 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-24 00:29:14,973 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:14,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:29:14,975 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:29:15,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:15,085 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:29:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:15,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122066734] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:29:15,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:29:15,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9
[2024-11-24 00:29:15,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438369036]
[2024-11-24 00:29:15,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:29:15,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-24 00:29:15,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:29:15,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-24 00:29:15,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-24 00:29:15,131 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:29:15,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 501 transitions, 8532 flow. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:15,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:29:15,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:29:15,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:29:16,953 INFO L124 PetriNetUnfolderBase]: 3752/6651 cut-off events.
[2024-11-24 00:29:16,953 INFO L125 PetriNetUnfolderBase]: For 71122/71124 co-relation queries the response was YES.
[2024-11-24 00:29:16,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43817 conditions, 6651 events. 3752/6651 cut-off events. For 71122/71124 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 45955 event pairs, 61 based on Foata normal form. 63/6714 useless extension candidates. Maximal degree in co-relation 42144. Up to 2010 conditions per place.
[2024-11-24 00:29:17,029 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 666 selfloop transitions, 252 changer transitions 13/934 dead transitions.
[2024-11-24 00:29:17,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 934 transitions, 16623 flow
[2024-11-24 00:29:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-24 00:29:17,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-11-24 00:29:17,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 153 transitions.
[2024-11-24 00:29:17,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5795454545454546
[2024-11-24 00:29:17,031 INFO L175 Difference]: Start difference. First operand has 146 places, 501 transitions, 8532 flow. Second operand 12 states and 153 transitions.
[2024-11-24 00:29:17,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 934 transitions, 16623 flow
[2024-11-24 00:29:17,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 934 transitions, 15730 flow, removed 419 selfloop flow, removed 11 redundant places.
[2024-11-24 00:29:17,460 INFO L231 Difference]: Finished difference. Result has 154 places, 635 transitions, 11357 flow
[2024-11-24 00:29:17,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=7846, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11357, PETRI_PLACES=154, PETRI_TRANSITIONS=635}
[2024-11-24 00:29:17,462 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 131 predicate places.
[2024-11-24 00:29:17,462 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 635 transitions, 11357 flow
[2024-11-24 00:29:17,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:17,462 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:29:17,462 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:29:17,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-24 00:29:17,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-11-24 00:29:17,667 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:29:17,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:29:17,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1669623216, now seen corresponding path program 4 times
[2024-11-24 00:29:17,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:29:17,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021800809]
[2024-11-24 00:29:17,667 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:29:17,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:29:17,678 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:29:17,678 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:17,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:29:17,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021800809]
[2024-11-24 00:29:17,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021800809] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:29:17,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843214172]
[2024-11-24 00:29:17,741 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:29:17,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:29:17,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:29:17,743 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:29:17,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-24 00:29:17,809 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:29:17,809 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:17,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:29:17,811 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:29:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:17,916 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:29:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:17,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843214172] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:29:17,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:29:17,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 8
[2024-11-24 00:29:17,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493955543]
[2024-11-24 00:29:17,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:29:17,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-24 00:29:17,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:29:17,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-24 00:29:17,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-24 00:29:17,965 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:29:17,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 635 transitions, 11357 flow. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:17,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:29:17,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:29:17,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:29:20,509 INFO L124 PetriNetUnfolderBase]: 4219/7793 cut-off events.
[2024-11-24 00:29:20,509 INFO L125 PetriNetUnfolderBase]: For 101402/101402 co-relation queries the response was YES.
[2024-11-24 00:29:20,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55968 conditions, 7793 events. 4219/7793 cut-off events. For 101402/101402 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 57954 event pairs, 352 based on Foata normal form. 32/7825 useless extension candidates. Maximal degree in co-relation 55258. Up to 3069 conditions per place.
[2024-11-24 00:29:20,605 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 526 selfloop transitions, 479 changer transitions 5/1013 dead transitions.
[2024-11-24 00:29:20,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 1013 transitions, 19522 flow
[2024-11-24 00:29:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-24 00:29:20,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2024-11-24 00:29:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 173 transitions.
[2024-11-24 00:29:20,608 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5616883116883117
[2024-11-24 00:29:20,608 INFO L175 Difference]: Start difference. First operand has 154 places, 635 transitions, 11357 flow. Second operand 14 states and 173 transitions.
[2024-11-24 00:29:20,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 1013 transitions, 19522 flow
[2024-11-24 00:29:21,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 1013 transitions, 18911 flow, removed 298 selfloop flow, removed 3 redundant places.
[2024-11-24 00:29:21,535 INFO L231 Difference]: Finished difference. Result has 168 places, 772 transitions, 14970 flow
[2024-11-24 00:29:21,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=10818, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=348, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14970, PETRI_PLACES=168, PETRI_TRANSITIONS=772}
[2024-11-24 00:29:21,536 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 145 predicate places.
[2024-11-24 00:29:21,536 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 772 transitions, 14970 flow
[2024-11-24 00:29:21,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:21,536 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:29:21,536 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:29:21,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-24 00:29:21,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2024-11-24 00:29:21,737 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:29:21,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:29:21,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1097335117, now seen corresponding path program 5 times
[2024-11-24 00:29:21,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:29:21,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394400619]
[2024-11-24 00:29:21,738 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:29:21,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:29:21,762 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:29:21,762 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:29:22,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:29:22,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394400619]
[2024-11-24 00:29:22,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394400619] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:29:22,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669394192]
[2024-11-24 00:29:22,169 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:29:22,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:29:22,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:29:22,172 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:29:22,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-24 00:29:22,253 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:29:22,254 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:22,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-24 00:29:22,257 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:29:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:29:22,715 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:29:22,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:22,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669394192] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:29:22,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:29:22,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 5] total 14
[2024-11-24 00:29:22,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571720005]
[2024-11-24 00:29:22,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:29:22,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-24 00:29:22,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:29:22,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-24 00:29:22,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210
[2024-11-24 00:29:22,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:29:22,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 772 transitions, 14970 flow. Second operand has 15 states, 15 states have (on average 8.4) internal successors, (126), 15 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:22,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:29:22,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:29:22,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:29:27,610 INFO L124 PetriNetUnfolderBase]: 5170/9594 cut-off events.
[2024-11-24 00:29:27,610 INFO L125 PetriNetUnfolderBase]: For 151404/151404 co-relation queries the response was YES.
[2024-11-24 00:29:27,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73568 conditions, 9594 events. 5170/9594 cut-off events. For 151404/151404 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 73435 event pairs, 465 based on Foata normal form. 22/9616 useless extension candidates. Maximal degree in co-relation 70962. Up to 4642 conditions per place.
[2024-11-24 00:29:27,722 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 463 selfloop transitions, 685 changer transitions 14/1165 dead transitions.
[2024-11-24 00:29:27,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 1165 transitions, 24367 flow
[2024-11-24 00:29:27,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-24 00:29:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2024-11-24 00:29:27,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 294 transitions.
[2024-11-24 00:29:27,725 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5810276679841897
[2024-11-24 00:29:27,725 INFO L175 Difference]: Start difference. First operand has 168 places, 772 transitions, 14970 flow. Second operand 23 states and 294 transitions.
[2024-11-24 00:29:27,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 1165 transitions, 24367 flow
[2024-11-24 00:29:29,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 1165 transitions, 24077 flow, removed 132 selfloop flow, removed 3 redundant places.
[2024-11-24 00:29:29,178 INFO L231 Difference]: Finished difference. Result has 198 places, 1053 transitions, 23720 flow
[2024-11-24 00:29:29,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=14764, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=772, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=441, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=23720, PETRI_PLACES=198, PETRI_TRANSITIONS=1053}
[2024-11-24 00:29:29,180 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 175 predicate places.
[2024-11-24 00:29:29,180 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 1053 transitions, 23720 flow
[2024-11-24 00:29:29,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.4) internal successors, (126), 15 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:29,180 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:29:29,180 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:29:29,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-24 00:29:29,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:29:29,381 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:29:29,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:29:29,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1390427790, now seen corresponding path program 6 times
[2024-11-24 00:29:29,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:29:29,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201352764]
[2024-11-24 00:29:29,382 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-24 00:29:29,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:29:29,395 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2024-11-24 00:29:29,395 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:29,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:29,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:29:29,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201352764]
[2024-11-24 00:29:29,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201352764] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:29:29,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619820026]
[2024-11-24 00:29:29,470 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-24 00:29:29,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:29:29,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:29:29,473 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:29:29,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-24 00:29:29,537 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2024-11-24 00:29:29,538 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:29,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:29:29,540 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:29:29,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:29,664 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:29:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:29,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619820026] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:29:29,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:29:29,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9
[2024-11-24 00:29:29,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935349667]
[2024-11-24 00:29:29,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:29:29,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-24 00:29:29,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:29:29,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-24 00:29:29,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-24 00:29:29,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:29:29,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 1053 transitions, 23720 flow. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:29,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:29:29,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:29:29,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:29:35,076 INFO L124 PetriNetUnfolderBase]: 6047/11068 cut-off events.
[2024-11-24 00:29:35,076 INFO L125 PetriNetUnfolderBase]: For 205083/205083 co-relation queries the response was YES.
[2024-11-24 00:29:35,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92909 conditions, 11068 events. 6047/11068 cut-off events. For 205083/205083 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 86234 event pairs, 470 based on Foata normal form. 146/11214 useless extension candidates. Maximal degree in co-relation 91691. Up to 4541 conditions per place.
[2024-11-24 00:29:35,228 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 798 selfloop transitions, 750 changer transitions 0/1551 dead transitions.
[2024-11-24 00:29:35,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 1551 transitions, 36197 flow
[2024-11-24 00:29:35,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-24 00:29:35,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2024-11-24 00:29:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 177 transitions.
[2024-11-24 00:29:35,230 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5746753246753247
[2024-11-24 00:29:35,230 INFO L175 Difference]: Start difference. First operand has 198 places, 1053 transitions, 23720 flow. Second operand 14 states and 177 transitions.
[2024-11-24 00:29:35,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 1551 transitions, 36197 flow
[2024-11-24 00:29:37,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 1551 transitions, 34862 flow, removed 655 selfloop flow, removed 7 redundant places.
[2024-11-24 00:29:37,551 INFO L231 Difference]: Finished difference. Result has 212 places, 1246 transitions, 30287 flow
[2024-11-24 00:29:37,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=22613, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=566, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=30287, PETRI_PLACES=212, PETRI_TRANSITIONS=1246}
[2024-11-24 00:29:37,553 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 189 predicate places.
[2024-11-24 00:29:37,553 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 1246 transitions, 30287 flow
[2024-11-24 00:29:37,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:37,553 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:29:37,553 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:29:37,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2024-11-24 00:29:37,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:29:37,757 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:29:37,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:29:37,758 INFO L85 PathProgramCache]: Analyzing trace with hash -491053936, now seen corresponding path program 7 times
[2024-11-24 00:29:37,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:29:37,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730691759]
[2024-11-24 00:29:37,758 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-24 00:29:37,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:29:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:29:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:29:37,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:29:37,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730691759]
[2024-11-24 00:29:37,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730691759] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:29:37,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:29:37,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:29:37,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125014227]
[2024-11-24 00:29:37,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:29:37,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:29:37,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:29:37,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:29:37,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:29:37,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:29:37,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 1246 transitions, 30287 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:37,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:29:37,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:29:37,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:29:44,369 INFO L124 PetriNetUnfolderBase]: 6038/11097 cut-off events.
[2024-11-24 00:29:44,369 INFO L125 PetriNetUnfolderBase]: For 265492/265494 co-relation queries the response was YES.
[2024-11-24 00:29:44,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101960 conditions, 11097 events. 6038/11097 cut-off events. For 265492/265494 co-relation queries the response was YES. Maximal size of possible extension queue 702. Compared 87514 event pairs, 136 based on Foata normal form. 63/11160 useless extension candidates. Maximal degree in co-relation 100492. Up to 3323 conditions per place.
[2024-11-24 00:29:44,545 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 1004 selfloop transitions, 509 changer transitions 0/1516 dead transitions.
[2024-11-24 00:29:44,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 1516 transitions, 36736 flow
[2024-11-24 00:29:44,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-24 00:29:44,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-11-24 00:29:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions.
[2024-11-24 00:29:44,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909
[2024-11-24 00:29:44,547 INFO L175 Difference]: Start difference. First operand has 212 places, 1246 transitions, 30287 flow. Second operand 7 states and 91 transitions.
[2024-11-24 00:29:44,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 1516 transitions, 36736 flow
[2024-11-24 00:29:47,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 1516 transitions, 36473 flow, removed 125 selfloop flow, removed 2 redundant places.
[2024-11-24 00:29:47,611 INFO L231 Difference]: Finished difference. Result has 220 places, 1247 transitions, 31823 flow
[2024-11-24 00:29:47,612 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=29503, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=488, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31823, PETRI_PLACES=220, PETRI_TRANSITIONS=1247}
[2024-11-24 00:29:47,613 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 197 predicate places.
[2024-11-24 00:29:47,613 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 1247 transitions, 31823 flow
[2024-11-24 00:29:47,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:47,613 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:29:47,613 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:29:47,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-24 00:29:47,613 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:29:47,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:29:47,614 INFO L85 PathProgramCache]: Analyzing trace with hash -136156045, now seen corresponding path program 8 times
[2024-11-24 00:29:47,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:29:47,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224744309]
[2024-11-24 00:29:47,614 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:29:47,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:29:47,631 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:29:47,631 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:29:48,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:29:48,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224744309]
[2024-11-24 00:29:48,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224744309] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:29:48,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167438267]
[2024-11-24 00:29:48,059 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:29:48,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:29:48,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:29:48,061 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:29:48,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-24 00:29:48,150 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:29:48,150 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:29:48,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-24 00:29:48,153 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:29:48,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:29:48,862 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:29:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:29:49,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167438267] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:29:49,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:29:49,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 17
[2024-11-24 00:29:49,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728161981]
[2024-11-24 00:29:49,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:29:49,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-24 00:29:49,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:29:49,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-24 00:29:49,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306
[2024-11-24 00:29:49,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:29:49,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 1247 transitions, 31823 flow. Second operand has 18 states, 18 states have (on average 8.277777777777779) internal successors, (149), 18 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:29:49,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:29:49,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:29:49,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:29:58,242 INFO L124 PetriNetUnfolderBase]: 7309/13364 cut-off events.
[2024-11-24 00:29:58,242 INFO L125 PetriNetUnfolderBase]: For 360269/360271 co-relation queries the response was YES.
[2024-11-24 00:29:58,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131078 conditions, 13364 events. 7309/13364 cut-off events. For 360269/360271 co-relation queries the response was YES. Maximal size of possible extension queue 915. Compared 108019 event pairs, 583 based on Foata normal form. 18/13382 useless extension candidates. Maximal degree in co-relation 129532. Up to 6512 conditions per place.
[2024-11-24 00:29:58,436 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 589 selfloop transitions, 1132 changer transitions 23/1747 dead transitions.
[2024-11-24 00:29:58,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 1747 transitions, 48156 flow
[2024-11-24 00:29:58,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states.
[2024-11-24 00:29:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states.
[2024-11-24 00:29:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 331 transitions.
[2024-11-24 00:29:58,439 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5572390572390572
[2024-11-24 00:29:58,439 INFO L175 Difference]: Start difference. First operand has 220 places, 1247 transitions, 31823 flow. Second operand 27 states and 331 transitions.
[2024-11-24 00:29:58,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 1747 transitions, 48156 flow
[2024-11-24 00:30:03,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 1747 transitions, 47690 flow, removed 27 selfloop flow, removed 1 redundant places.
[2024-11-24 00:30:03,840 INFO L231 Difference]: Finished difference. Result has 253 places, 1616 transitions, 45987 flow
[2024-11-24 00:30:03,841 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=31509, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=795, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=45987, PETRI_PLACES=253, PETRI_TRANSITIONS=1616}
[2024-11-24 00:30:03,842 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 230 predicate places.
[2024-11-24 00:30:03,842 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 1616 transitions, 45987 flow
[2024-11-24 00:30:03,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.277777777777779) internal successors, (149), 18 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:03,842 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:30:03,842 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:30:03,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2024-11-24 00:30:04,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-24 00:30:04,043 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:30:04,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:30:04,043 INFO L85 PathProgramCache]: Analyzing trace with hash 316342831, now seen corresponding path program 9 times
[2024-11-24 00:30:04,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:30:04,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284917373]
[2024-11-24 00:30:04,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:30:04,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:30:04,053 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-24 00:30:04,053 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:30:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:04,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:30:04,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284917373]
[2024-11-24 00:30:04,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284917373] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:30:04,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664775019]
[2024-11-24 00:30:04,107 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:30:04,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:30:04,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:30:04,109 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:30:04,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-24 00:30:04,181 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-24 00:30:04,181 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:30:04,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-24 00:30:04,183 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:30:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:04,227 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:30:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:04,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664775019] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:30:04,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:30:04,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7
[2024-11-24 00:30:04,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984653846]
[2024-11-24 00:30:04,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:30:04,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-24 00:30:04,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:30:04,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-24 00:30:04,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-24 00:30:04,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:30:04,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 1616 transitions, 45987 flow. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:04,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:30:04,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:30:04,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:30:13,744 INFO L124 PetriNetUnfolderBase]: 5154/9349 cut-off events.
[2024-11-24 00:30:13,744 INFO L125 PetriNetUnfolderBase]: For 298949/298949 co-relation queries the response was YES.
[2024-11-24 00:30:13,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94735 conditions, 9349 events. 5154/9349 cut-off events. For 298949/298949 co-relation queries the response was YES. Maximal size of possible extension queue 750. Compared 73096 event pairs, 310 based on Foata normal form. 544/9893 useless extension candidates. Maximal degree in co-relation 94371. Up to 5258 conditions per place.
[2024-11-24 00:30:13,860 INFO L140 encePairwiseOnDemand]: 19/22 looper letters, 988 selfloop transitions, 334 changer transitions 0/1325 dead transitions.
[2024-11-24 00:30:13,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 1325 transitions, 39856 flow
[2024-11-24 00:30:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 00:30:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 00:30:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 69 transitions.
[2024-11-24 00:30:13,862 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6272727272727273
[2024-11-24 00:30:13,862 INFO L175 Difference]: Start difference. First operand has 253 places, 1616 transitions, 45987 flow. Second operand 5 states and 69 transitions.
[2024-11-24 00:30:13,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 1325 transitions, 39856 flow
[2024-11-24 00:30:17,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 1325 transitions, 36649 flow, removed 1556 selfloop flow, removed 12 redundant places.
[2024-11-24 00:30:17,110 INFO L231 Difference]: Finished difference. Result has 243 places, 1163 transitions, 31556 flow
[2024-11-24 00:30:17,111 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=27033, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=31556, PETRI_PLACES=243, PETRI_TRANSITIONS=1163}
[2024-11-24 00:30:17,112 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 220 predicate places.
[2024-11-24 00:30:17,112 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 1163 transitions, 31556 flow
[2024-11-24 00:30:17,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:17,112 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:30:17,112 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:30:17,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-11-24 00:30:17,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-24 00:30:17,313 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:30:17,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:30:17,314 INFO L85 PathProgramCache]: Analyzing trace with hash -90236432, now seen corresponding path program 10 times
[2024-11-24 00:30:17,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:30:17,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159015544]
[2024-11-24 00:30:17,314 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:30:17,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:30:17,331 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:30:17,331 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:30:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:17,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:30:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159015544]
[2024-11-24 00:30:17,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159015544] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:30:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126539114]
[2024-11-24 00:30:17,400 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:30:17,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:30:17,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:30:17,403 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:30:17,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-24 00:30:17,476 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:30:17,476 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:30:17,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:30:17,478 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:30:17,582 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:17,582 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:30:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:17,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126539114] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:30:17,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:30:17,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9
[2024-11-24 00:30:17,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208035790]
[2024-11-24 00:30:17,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:30:17,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-24 00:30:17,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:30:17,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-24 00:30:17,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-24 00:30:17,625 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:30:17,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 1163 transitions, 31556 flow. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:17,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:30:17,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:30:17,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:30:22,418 INFO L124 PetriNetUnfolderBase]: 5270/9581 cut-off events.
[2024-11-24 00:30:22,418 INFO L125 PetriNetUnfolderBase]: For 282862/282862 co-relation queries the response was YES.
[2024-11-24 00:30:22,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95322 conditions, 9581 events. 5270/9581 cut-off events. For 282862/282862 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 75158 event pairs, 454 based on Foata normal form. 103/9684 useless extension candidates. Maximal degree in co-relation 94058. Up to 8857 conditions per place.
[2024-11-24 00:30:22,571 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 1166 selfloop transitions, 97 changer transitions 0/1266 dead transitions.
[2024-11-24 00:30:22,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 1266 transitions, 36339 flow
[2024-11-24 00:30:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-24 00:30:22,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2024-11-24 00:30:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 171 transitions.
[2024-11-24 00:30:22,573 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5979020979020979
[2024-11-24 00:30:22,573 INFO L175 Difference]: Start difference. First operand has 243 places, 1163 transitions, 31556 flow. Second operand 13 states and 171 transitions.
[2024-11-24 00:30:22,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 1266 transitions, 36339 flow
[2024-11-24 00:30:26,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 1266 transitions, 36177 flow, removed 79 selfloop flow, removed 1 redundant places.
[2024-11-24 00:30:26,065 INFO L231 Difference]: Finished difference. Result has 261 places, 1198 transitions, 32955 flow
[2024-11-24 00:30:26,066 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=31243, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1080, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=32955, PETRI_PLACES=261, PETRI_TRANSITIONS=1198}
[2024-11-24 00:30:26,066 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 238 predicate places.
[2024-11-24 00:30:26,067 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 1198 transitions, 32955 flow
[2024-11-24 00:30:26,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:26,067 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:30:26,067 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:30:26,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-24 00:30:26,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-11-24 00:30:26,271 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:30:26,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:30:26,272 INFO L85 PathProgramCache]: Analyzing trace with hash -841002006, now seen corresponding path program 11 times
[2024-11-24 00:30:26,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:30:26,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581883158]
[2024-11-24 00:30:26,272 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:30:26,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:30:26,280 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2024-11-24 00:30:26,280 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:30:26,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-24 00:30:26,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:30:26,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581883158]
[2024-11-24 00:30:26,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581883158] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:30:26,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999915648]
[2024-11-24 00:30:26,332 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:30:26,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:30:26,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:30:26,334 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:30:26,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-24 00:30:26,396 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2024-11-24 00:30:26,396 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:30:26,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:30:26,398 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:30:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:26,506 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:30:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-24 00:30:26,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999915648] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:30:26,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:30:26,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 8
[2024-11-24 00:30:26,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61898538]
[2024-11-24 00:30:26,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:30:26,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-24 00:30:26,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:30:26,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-24 00:30:26,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-24 00:30:26,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:30:26,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 1198 transitions, 32955 flow. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:26,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:30:26,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:30:26,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:30:33,072 INFO L124 PetriNetUnfolderBase]: 5250/9518 cut-off events.
[2024-11-24 00:30:33,072 INFO L125 PetriNetUnfolderBase]: For 320412/320414 co-relation queries the response was YES.
[2024-11-24 00:30:33,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99401 conditions, 9518 events. 5250/9518 cut-off events. For 320412/320414 co-relation queries the response was YES. Maximal size of possible extension queue 761. Compared 74807 event pairs, 188 based on Foata normal form. 12/9530 useless extension candidates. Maximal degree in co-relation 98156. Up to 6403 conditions per place.
[2024-11-24 00:30:33,183 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 1133 selfloop transitions, 139 changer transitions 7/1282 dead transitions.
[2024-11-24 00:30:33,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 1282 transitions, 36841 flow
[2024-11-24 00:30:33,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-24 00:30:33,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2024-11-24 00:30:33,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 174 transitions.
[2024-11-24 00:30:33,185 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5272727272727272
[2024-11-24 00:30:33,185 INFO L175 Difference]: Start difference. First operand has 261 places, 1198 transitions, 32955 flow. Second operand 15 states and 174 transitions.
[2024-11-24 00:30:33,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 1282 transitions, 36841 flow
[2024-11-24 00:30:36,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 1282 transitions, 36177 flow, removed 289 selfloop flow, removed 5 redundant places.
[2024-11-24 00:30:36,868 INFO L231 Difference]: Finished difference. Result has 273 places, 1203 transitions, 32626 flow
[2024-11-24 00:30:36,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=31842, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1059, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=32626, PETRI_PLACES=273, PETRI_TRANSITIONS=1203}
[2024-11-24 00:30:36,870 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 250 predicate places.
[2024-11-24 00:30:36,870 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 1203 transitions, 32626 flow
[2024-11-24 00:30:36,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:36,871 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:30:36,871 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:30:36,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-24 00:30:37,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:30:37,075 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:30:37,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:30:37,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1295575608, now seen corresponding path program 12 times
[2024-11-24 00:30:37,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:30:37,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890180022]
[2024-11-24 00:30:37,075 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-24 00:30:37,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:30:37,084 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2024-11-24 00:30:37,085 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:30:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:37,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:30:37,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890180022]
[2024-11-24 00:30:37,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890180022] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:30:37,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458616855]
[2024-11-24 00:30:37,146 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-11-24 00:30:37,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:30:37,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:30:37,148 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:30:37,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-24 00:30:37,275 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2024-11-24 00:30:37,276 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:30:37,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:30:37,278 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:30:37,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:37,369 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:30:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:37,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458616855] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:30:37,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:30:37,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9
[2024-11-24 00:30:37,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893002319]
[2024-11-24 00:30:37,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:30:37,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-24 00:30:37,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:30:37,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-24 00:30:37,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-24 00:30:37,410 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:30:37,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 1203 transitions, 32626 flow. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:37,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:30:37,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:30:37,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:30:43,727 INFO L124 PetriNetUnfolderBase]: 6009/10980 cut-off events.
[2024-11-24 00:30:43,727 INFO L125 PetriNetUnfolderBase]: For 399380/399382 co-relation queries the response was YES.
[2024-11-24 00:30:43,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114491 conditions, 10980 events. 6009/10980 cut-off events. For 399380/399382 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 88247 event pairs, 122 based on Foata normal form. 246/11226 useless extension candidates. Maximal degree in co-relation 113749. Up to 4339 conditions per place.
[2024-11-24 00:30:43,877 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 1065 selfloop transitions, 408 changer transitions 70/1546 dead transitions.
[2024-11-24 00:30:43,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 1546 transitions, 41057 flow
[2024-11-24 00:30:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-24 00:30:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-11-24 00:30:44,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 149 transitions.
[2024-11-24 00:30:44,026 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5643939393939394
[2024-11-24 00:30:44,026 INFO L175 Difference]: Start difference. First operand has 273 places, 1203 transitions, 32626 flow. Second operand 12 states and 149 transitions.
[2024-11-24 00:30:44,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 1546 transitions, 41057 flow
[2024-11-24 00:30:48,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 1546 transitions, 40613 flow, removed 194 selfloop flow, removed 5 redundant places.
[2024-11-24 00:30:48,844 INFO L231 Difference]: Finished difference. Result has 285 places, 1207 transitions, 32924 flow
[2024-11-24 00:30:48,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=28680, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=279, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=32924, PETRI_PLACES=285, PETRI_TRANSITIONS=1207}
[2024-11-24 00:30:48,845 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 262 predicate places.
[2024-11-24 00:30:48,845 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 1207 transitions, 32924 flow
[2024-11-24 00:30:48,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:48,846 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:30:48,846 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:30:48,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2024-11-24 00:30:49,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:30:49,046 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:30:49,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:30:49,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1132938198, now seen corresponding path program 13 times
[2024-11-24 00:30:49,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:30:49,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379576740]
[2024-11-24 00:30:49,047 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-24 00:30:49,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:30:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:30:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:49,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:30:49,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379576740]
[2024-11-24 00:30:49,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379576740] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:30:49,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573659269]
[2024-11-24 00:30:49,112 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-11-24 00:30:49,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:30:49,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:30:49,117 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:30:49,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-24 00:30:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:30:49,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 00:30:49,179 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:30:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:49,279 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:30:49,324 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 00:30:49,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573659269] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:30:49,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:30:49,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 8
[2024-11-24 00:30:49,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238089109]
[2024-11-24 00:30:49,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:30:49,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-24 00:30:49,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:30:49,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-24 00:30:49,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-24 00:30:49,325 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:30:49,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 1207 transitions, 32924 flow. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:30:49,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:30:49,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:30:49,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:30:56,993 INFO L124 PetriNetUnfolderBase]: 5669/10267 cut-off events.
[2024-11-24 00:30:56,993 INFO L125 PetriNetUnfolderBase]: For 430800/430800 co-relation queries the response was YES.
[2024-11-24 00:30:57,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113011 conditions, 10267 events. 5669/10267 cut-off events. For 430800/430800 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 80329 event pairs, 273 based on Foata normal form. 404/10671 useless extension candidates. Maximal degree in co-relation 112744. Up to 5876 conditions per place.
[2024-11-24 00:30:57,132 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 953 selfloop transitions, 499 changer transitions 0/1455 dead transitions.
[2024-11-24 00:30:57,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1455 transitions, 41242 flow
[2024-11-24 00:30:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-24 00:30:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2024-11-24 00:30:57,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 144 transitions.
[2024-11-24 00:30:57,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5950413223140496
[2024-11-24 00:30:57,134 INFO L175 Difference]: Start difference. First operand has 285 places, 1207 transitions, 32924 flow. Second operand 11 states and 144 transitions.
[2024-11-24 00:30:57,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1455 transitions, 41242 flow
[2024-11-24 00:31:01,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 1455 transitions, 39266 flow, removed 791 selfloop flow, removed 9 redundant places.
[2024-11-24 00:31:01,811 INFO L231 Difference]: Finished difference. Result has 290 places, 1275 transitions, 34883 flow
[2024-11-24 00:31:01,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=30984, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=424, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=749, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=34883, PETRI_PLACES=290, PETRI_TRANSITIONS=1275}
[2024-11-24 00:31:01,812 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 267 predicate places.
[2024-11-24 00:31:01,812 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 1275 transitions, 34883 flow
[2024-11-24 00:31:01,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:01,813 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:31:01,813 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:31:01,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-11-24 00:31:02,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:31:02,014 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:31:02,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:31:02,014 INFO L85 PathProgramCache]: Analyzing trace with hash -277464367, now seen corresponding path program 14 times
[2024-11-24 00:31:02,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:31:02,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091229890]
[2024-11-24 00:31:02,014 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:31:02,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:31:02,023 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-24 00:31:02,024 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:31:02,072 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-24 00:31:02,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:31:02,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091229890]
[2024-11-24 00:31:02,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091229890] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:31:02,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:31:02,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-24 00:31:02,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782442347]
[2024-11-24 00:31:02,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:31:02,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:31:02,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:31:02,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:31:02,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:31:02,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:31:02,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 1275 transitions, 34883 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:02,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:31:02,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:31:02,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:31:06,700 INFO L124 PetriNetUnfolderBase]: 3785/7191 cut-off events.
[2024-11-24 00:31:06,700 INFO L125 PetriNetUnfolderBase]: For 259938/259938 co-relation queries the response was YES.
[2024-11-24 00:31:06,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77947 conditions, 7191 events. 3785/7191 cut-off events. For 259938/259938 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 55708 event pairs, 810 based on Foata normal form. 396/7587 useless extension candidates. Maximal degree in co-relation 77712. Up to 3400 conditions per place.
[2024-11-24 00:31:06,782 INFO L140 encePairwiseOnDemand]: 19/22 looper letters, 719 selfloop transitions, 185 changer transitions 229/1136 dead transitions.
[2024-11-24 00:31:06,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 1136 transitions, 33258 flow
[2024-11-24 00:31:06,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:31:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 00:31:06,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions.
[2024-11-24 00:31:06,783 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625
[2024-11-24 00:31:06,784 INFO L175 Difference]: Start difference. First operand has 290 places, 1275 transitions, 34883 flow. Second operand 4 states and 55 transitions.
[2024-11-24 00:31:06,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 1136 transitions, 33258 flow
[2024-11-24 00:31:09,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1136 transitions, 32638 flow, removed 244 selfloop flow, removed 9 redundant places.
[2024-11-24 00:31:09,763 INFO L231 Difference]: Finished difference. Result has 285 places, 826 transitions, 21741 flow
[2024-11-24 00:31:09,764 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=26760, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1009, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=824, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=21741, PETRI_PLACES=285, PETRI_TRANSITIONS=826}
[2024-11-24 00:31:09,765 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 262 predicate places.
[2024-11-24 00:31:09,765 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 826 transitions, 21741 flow
[2024-11-24 00:31:09,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:09,765 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:31:09,765 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:31:09,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-24 00:31:09,765 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:31:09,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:31:09,766 INFO L85 PathProgramCache]: Analyzing trace with hash 826367150, now seen corresponding path program 4 times
[2024-11-24 00:31:09,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:31:09,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320448838]
[2024-11-24 00:31:09,766 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:31:09,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:31:09,775 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:31:09,775 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:31:09,848 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:31:09,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:31:09,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320448838]
[2024-11-24 00:31:09,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320448838] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:31:09,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458130521]
[2024-11-24 00:31:09,849 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:31:09,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:31:09,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:31:09,852 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:31:09,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-11-24 00:31:09,915 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:31:09,915 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:31:09,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-24 00:31:09,918 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:31:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:31:10,071 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:31:10,137 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:31:10,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458130521] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:31:10,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:31:10,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 5] total 11
[2024-11-24 00:31:10,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552040322]
[2024-11-24 00:31:10,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:31:10,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-24 00:31:10,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:31:10,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-24 00:31:10,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2024-11-24 00:31:10,139 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:31:10,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 826 transitions, 21741 flow. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:10,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:31:10,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:31:10,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:31:14,258 INFO L124 PetriNetUnfolderBase]: 4166/7868 cut-off events.
[2024-11-24 00:31:14,259 INFO L125 PetriNetUnfolderBase]: For 316304/316304 co-relation queries the response was YES.
[2024-11-24 00:31:14,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87624 conditions, 7868 events. 4166/7868 cut-off events. For 316304/316304 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 60148 event pairs, 304 based on Foata normal form. 140/8008 useless extension candidates. Maximal degree in co-relation 87340. Up to 2072 conditions per place.
[2024-11-24 00:31:14,448 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 671 selfloop transitions, 658 changer transitions 0/1332 dead transitions.
[2024-11-24 00:31:14,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 1332 transitions, 37602 flow
[2024-11-24 00:31:14,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2024-11-24 00:31:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2024-11-24 00:31:14,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 291 transitions.
[2024-11-24 00:31:14,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.575098814229249
[2024-11-24 00:31:14,450 INFO L175 Difference]: Start difference. First operand has 285 places, 826 transitions, 21741 flow. Second operand 23 states and 291 transitions.
[2024-11-24 00:31:14,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 1332 transitions, 37602 flow
[2024-11-24 00:31:17,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 1332 transitions, 37015 flow, removed 109 selfloop flow, removed 4 redundant places.
[2024-11-24 00:31:17,543 INFO L231 Difference]: Finished difference. Result has 313 places, 1090 transitions, 32173 flow
[2024-11-24 00:31:17,544 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=21317, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=422, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=32173, PETRI_PLACES=313, PETRI_TRANSITIONS=1090}
[2024-11-24 00:31:17,544 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 290 predicate places.
[2024-11-24 00:31:17,545 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 1090 transitions, 32173 flow
[2024-11-24 00:31:17,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:17,545 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:31:17,545 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:31:17,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-11-24 00:31:17,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:31:17,745 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:31:17,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:31:17,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1625626958, now seen corresponding path program 5 times
[2024-11-24 00:31:17,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:31:17,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450300597]
[2024-11-24 00:31:17,746 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:31:17,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:31:17,753 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2024-11-24 00:31:17,754 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:31:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:31:17,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:31:17,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450300597]
[2024-11-24 00:31:17,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450300597] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:31:17,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072951811]
[2024-11-24 00:31:17,824 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:31:17,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:31:17,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:31:17,826 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:31:17,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-24 00:31:17,888 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2024-11-24 00:31:17,888 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:31:17,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-24 00:31:17,890 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:31:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:31:18,135 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:31:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 00:31:18,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072951811] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:31:18,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:31:18,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 5] total 11
[2024-11-24 00:31:18,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169910888]
[2024-11-24 00:31:18,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:31:18,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-24 00:31:18,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:31:18,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-24 00:31:18,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2024-11-24 00:31:18,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:31:18,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 1090 transitions, 32173 flow. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:18,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:31:18,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:31:18,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:31:22,638 INFO L124 PetriNetUnfolderBase]: 4021/7607 cut-off events.
[2024-11-24 00:31:22,638 INFO L125 PetriNetUnfolderBase]: For 351478/351480 co-relation queries the response was YES.
[2024-11-24 00:31:22,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89771 conditions, 7607 events. 4021/7607 cut-off events. For 351478/351480 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 58224 event pairs, 73 based on Foata normal form. 75/7682 useless extension candidates. Maximal degree in co-relation 89471. Up to 2002 conditions per place.
[2024-11-24 00:31:22,777 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 851 selfloop transitions, 499 changer transitions 16/1369 dead transitions.
[2024-11-24 00:31:22,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 1369 transitions, 40052 flow
[2024-11-24 00:31:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states.
[2024-11-24 00:31:22,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2024-11-24 00:31:22,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 299 transitions.
[2024-11-24 00:31:22,779 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5436363636363636
[2024-11-24 00:31:22,779 INFO L175 Difference]: Start difference. First operand has 313 places, 1090 transitions, 32173 flow. Second operand 25 states and 299 transitions.
[2024-11-24 00:31:22,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 1369 transitions, 40052 flow
[2024-11-24 00:31:26,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 1369 transitions, 39248 flow, removed 365 selfloop flow, removed 4 redundant places.
[2024-11-24 00:31:26,903 INFO L231 Difference]: Finished difference. Result has 337 places, 1092 transitions, 32976 flow
[2024-11-24 00:31:26,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=30655, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=476, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=32976, PETRI_PLACES=337, PETRI_TRANSITIONS=1092}
[2024-11-24 00:31:26,904 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 314 predicate places.
[2024-11-24 00:31:26,904 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 1092 transitions, 32976 flow
[2024-11-24 00:31:26,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:26,905 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:31:26,905 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:31:26,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-11-24 00:31:27,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2024-11-24 00:31:27,105 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:31:27,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:31:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash 471493380, now seen corresponding path program 15 times
[2024-11-24 00:31:27,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:31:27,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509928901]
[2024-11-24 00:31:27,106 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:31:27,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:31:27,121 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-24 00:31:27,121 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:31:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:31:27,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:31:27,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509928901]
[2024-11-24 00:31:27,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509928901] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:31:27,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871855164]
[2024-11-24 00:31:27,586 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-24 00:31:27,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:31:27,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:31:27,588 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:31:27,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-11-24 00:31:27,688 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-24 00:31:27,688 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:31:27,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-24 00:31:27,690 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:31:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:31:28,493 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:31:29,225 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:31:29,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871855164] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:31:29,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:31:29,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 24
[2024-11-24 00:31:29,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355740859]
[2024-11-24 00:31:29,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:31:29,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-11-24 00:31:29,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:31:29,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-11-24 00:31:29,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600
[2024-11-24 00:31:29,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:31:29,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 1092 transitions, 32976 flow. Second operand has 25 states, 25 states have (on average 8.04) internal successors, (201), 25 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:29,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:31:29,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:31:29,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:31:33,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-24 00:31:38,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-24 00:31:47,554 INFO L124 PetriNetUnfolderBase]: 4520/8549 cut-off events.
[2024-11-24 00:31:47,555 INFO L125 PetriNetUnfolderBase]: For 430546/430546 co-relation queries the response was YES.
[2024-11-24 00:31:47,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104892 conditions, 8549 events. 4520/8549 cut-off events. For 430546/430546 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 66430 event pairs, 293 based on Foata normal form. 8/8557 useless extension candidates. Maximal degree in co-relation 104639. Up to 7516 conditions per place.
[2024-11-24 00:31:47,946 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 1183 selfloop transitions, 161 changer transitions 14/1361 dead transitions.
[2024-11-24 00:31:47,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 1361 transitions, 42465 flow
[2024-11-24 00:31:47,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states.
[2024-11-24 00:31:47,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states.
[2024-11-24 00:31:47,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 336 transitions.
[2024-11-24 00:31:47,948 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656
[2024-11-24 00:31:47,948 INFO L175 Difference]: Start difference. First operand has 337 places, 1092 transitions, 32976 flow. Second operand 27 states and 336 transitions.
[2024-11-24 00:31:47,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 1361 transitions, 42465 flow
[2024-11-24 00:31:52,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1361 transitions, 40738 flow, removed 509 selfloop flow, removed 11 redundant places.
[2024-11-24 00:31:52,843 INFO L231 Difference]: Finished difference. Result has 364 places, 1212 transitions, 35876 flow
[2024-11-24 00:31:52,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=31388, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1092, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=990, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=35876, PETRI_PLACES=364, PETRI_TRANSITIONS=1212}
[2024-11-24 00:31:52,844 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 341 predicate places.
[2024-11-24 00:31:52,844 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 1212 transitions, 35876 flow
[2024-11-24 00:31:52,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.04) internal successors, (201), 25 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:52,844 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:31:52,844 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:31:52,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2024-11-24 00:31:53,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2024-11-24 00:31:53,045 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:31:53,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:31:53,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1596313948, now seen corresponding path program 16 times
[2024-11-24 00:31:53,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:31:53,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396331078]
[2024-11-24 00:31:53,046 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:31:53,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:31:53,056 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:31:53,056 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:31:53,327 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:31:53,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:31:53,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396331078]
[2024-11-24 00:31:53,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396331078] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:31:53,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436848858]
[2024-11-24 00:31:53,328 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-24 00:31:53,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:31:53,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:31:53,331 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:31:53,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-24 00:31:53,438 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-24 00:31:53,438 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:31:53,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-24 00:31:53,440 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:31:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:31:54,135 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:31:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:31:54,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436848858] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:31:54,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:31:54,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 17
[2024-11-24 00:31:54,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588376565]
[2024-11-24 00:31:54,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:31:54,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-24 00:31:54,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:31:54,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-24 00:31:54,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306
[2024-11-24 00:31:54,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:31:54,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 1212 transitions, 35876 flow. Second operand has 18 states, 18 states have (on average 8.444444444444445) internal successors, (152), 18 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:31:54,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:31:54,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:31:54,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:32:03,460 INFO L124 PetriNetUnfolderBase]: 5898/11218 cut-off events.
[2024-11-24 00:32:03,460 INFO L125 PetriNetUnfolderBase]: For 531965/531965 co-relation queries the response was YES.
[2024-11-24 00:32:03,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135680 conditions, 11218 events. 5898/11218 cut-off events. For 531965/531965 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 92002 event pairs, 271 based on Foata normal form. 19/11237 useless extension candidates. Maximal degree in co-relation 135416. Up to 6021 conditions per place.
[2024-11-24 00:32:03,623 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 776 selfloop transitions, 1010 changer transitions 27/1816 dead transitions.
[2024-11-24 00:32:03,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1816 transitions, 56831 flow
[2024-11-24 00:32:03,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states.
[2024-11-24 00:32:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2024-11-24 00:32:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 381 transitions.
[2024-11-24 00:32:03,625 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5772727272727273
[2024-11-24 00:32:03,625 INFO L175 Difference]: Start difference. First operand has 364 places, 1212 transitions, 35876 flow. Second operand 30 states and 381 transitions.
[2024-11-24 00:32:03,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1816 transitions, 56831 flow
[2024-11-24 00:32:09,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 1816 transitions, 55221 flow, removed 793 selfloop flow, removed 6 redundant places.
[2024-11-24 00:32:09,425 INFO L231 Difference]: Finished difference. Result has 398 places, 1583 transitions, 50380 flow
[2024-11-24 00:32:09,426 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=34816, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=678, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=50380, PETRI_PLACES=398, PETRI_TRANSITIONS=1583}
[2024-11-24 00:32:09,426 INFO L279 CegarLoopForPetriNet]: 23 programPoint places, 375 predicate places.
[2024-11-24 00:32:09,427 INFO L471 AbstractCegarLoop]: Abstraction has has 398 places, 1583 transitions, 50380 flow
[2024-11-24 00:32:09,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.444444444444445) internal successors, (152), 18 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:32:09,427 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:32:09,427 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:32:09,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0
[2024-11-24 00:32:09,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:32:09,627 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-24 00:32:09,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:32:09,628 INFO L85 PathProgramCache]: Analyzing trace with hash 609182598, now seen corresponding path program 17 times
[2024-11-24 00:32:09,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:32:09,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004956070]
[2024-11-24 00:32:09,628 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:32:09,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:32:09,636 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2024-11-24 00:32:09,636 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:32:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:32:09,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:32:09,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004956070]
[2024-11-24 00:32:09,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004956070] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:32:09,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115650983]
[2024-11-24 00:32:09,912 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-11-24 00:32:09,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:32:09,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:32:09,914 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:32:09,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353930d4-0824-4556-a63d-948a56f7b946/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-11-24 00:32:10,016 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2024-11-24 00:32:10,016 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:32:10,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-24 00:32:10,018 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:32:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:32:10,864 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:32:11,170 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:32:11,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115650983] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:32:11,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:32:11,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 16
[2024-11-24 00:32:11,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745582632]
[2024-11-24 00:32:11,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:32:11,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-24 00:32:11,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:32:11,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-24 00:32:11,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272
[2024-11-24 00:32:11,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22
[2024-11-24 00:32:11,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 1583 transitions, 50380 flow. Second operand has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 17 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:32:11,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:32:11,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22
[2024-11-24 00:32:11,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:32:20,892 INFO L124 PetriNetUnfolderBase]: 6248/11885 cut-off events.
[2024-11-24 00:32:20,892 INFO L125 PetriNetUnfolderBase]: For 587903/587903 co-relation queries the response was YES.
[2024-11-24 00:32:21,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147414 conditions, 11885 events. 6248/11885 cut-off events. For 587903/587903 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 98590 event pairs, 423 based on Foata normal form. 16/11901 useless extension candidates. Maximal degree in co-relation 147131. Up to 11032 conditions per place.
[2024-11-24 00:32:21,100 INFO L140 encePairwiseOnDemand]: 16/22 looper letters, 1620 selfloop transitions, 122 changer transitions 21/1766 dead transitions.
[2024-11-24 00:32:21,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 1766 transitions, 59171 flow
[2024-11-24 00:32:21,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-24 00:32:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2024-11-24 00:32:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 202 transitions.
[2024-11-24 00:32:21,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5401069518716578
[2024-11-24 00:32:21,102 INFO L175 Difference]: Start difference. First operand has 398 places, 1583 transitions, 50380 flow. Second operand 17 states and 202 transitions.
[2024-11-24 00:32:21,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 1766 transitions, 59171 flow