./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/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_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:30:10,114 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:30:10,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-23 23:30:10,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:30:10,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:30:10,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:30:10,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:30:10,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:30:10,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:30:10,261 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-23 23:30:10,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:30:10,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:30:10,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:30:10,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 23:30:10,262 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 23:30:10,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:30:10,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:30:10,262 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 23:30:10,262 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 23:30:10,262 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 23:30:10,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 23:30:10,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:30:10,263 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:30:10,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:30:10,263 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-23 23:30:10,263 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 23:30:10,263 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 23:30:10,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-23 23:30:10,264 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:30:10,264 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 23:30:10,264 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:30:10,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:30:10,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:30:10,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:30:10,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:30:10,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:30:10,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 23:30:10,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:30:10,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 23:30:10,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:30:10,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:30:10,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:30:10,266 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-23 23:30:10,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:30:10,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 23:30:10,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:30:10,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:30:10,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:30:10,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:30:10,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:30:10,266 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_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/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 ! overflow) )
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 -> e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe
[2024-11-23 23:30:10,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:30:10,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:30:10,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:30:10,636 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 23:30:10,637 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 23:30:10,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c
[2024-11-23 23:30:14,051 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/data/483cc0819/b9feb5d861f04c818e2897cf8212c4e6/FLAG387a37e9b
[2024-11-23 23:30:14,448 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 23:30:14,448 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/sv-benchmarks/c/weaver/array-eq-trans.wvr.c
[2024-11-23 23:30:14,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/data/483cc0819/b9feb5d861f04c818e2897cf8212c4e6/FLAG387a37e9b
[2024-11-23 23:30:14,482 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/data/483cc0819/b9feb5d861f04c818e2897cf8212c4e6
[2024-11-23 23:30:14,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:30:14,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:30:14,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:30:14,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:30:14,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:30:14,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:14,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7f97d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14, skipping insertion in model container
[2024-11-23 23:30:14,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:14,530 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:30:14,797 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:30:14,811 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 23:30:14,864 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:30:14,892 INFO L204 MainTranslator]: Completed translation
[2024-11-23 23:30:14,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14 WrapperNode
[2024-11-23 23:30:14,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:30:14,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:30:14,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:30:14,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:30:14,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:14,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:14,985 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 11, calls inlined = 15, statements flattened = 199
[2024-11-23 23:30:14,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:30:14,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:30:14,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:30:14,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:30:14,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,004 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,038 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3].
[2024-11-23 23:30:15,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,048 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,050 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:30:15,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:30:15,062 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:30:15,063 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:30:15,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (1/1) ...
[2024-11-23 23:30:15,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:30:15,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:30:15,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:30:15,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:30:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:30:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-23 23:30:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-23 23:30:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-23 23:30:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-23 23:30:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2024-11-23 23:30:15,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2024-11-23 23:30:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 23:30:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-23 23:30:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-23 23:30:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-23 23:30:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-23 23:30:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:30:15,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:30:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-23 23:30:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-23 23:30:15,154 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-23 23:30:15,349 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 23:30:15,353 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:30:16,072 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-23 23:30:16,073 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 23:30:16,730 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:30:16,730 INFO L312 CfgBuilder]: Removed 6 assume(true) statements.
[2024-11-23 23:30:16,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:30:16 BoogieIcfgContainer
[2024-11-23 23:30:16,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:30:16,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:30:16,733 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:30:16,738 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:30:16,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:30:14" (1/3) ...
[2024-11-23 23:30:16,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdb6aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:30:16, skipping insertion in model container
[2024-11-23 23:30:16,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:30:14" (2/3) ...
[2024-11-23 23:30:16,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdb6aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:30:16, skipping insertion in model container
[2024-11-23 23:30:16,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:30:16" (3/3) ...
[2024-11-23 23:30:16,741 INFO L128 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c
[2024-11-23 23:30:16,757 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:30:16,759 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array-eq-trans.wvr.c that has 4 procedures, 54 locations, 1 initial locations, 6 loop locations, and 12 error locations.
[2024-11-23 23:30:16,759 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-23 23:30:16,850 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-11-23 23:30:16,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 62 transitions, 145 flow
[2024-11-23 23:30:16,950 INFO L124 PetriNetUnfolderBase]: 9/59 cut-off events.
[2024-11-23 23:30:16,955 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2024-11-23 23:30:16,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 59 events. 9/59 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 145 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place.
[2024-11-23 23:30:16,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 62 transitions, 145 flow
[2024-11-23 23:30:16,965 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 57 transitions, 129 flow
[2024-11-23 23:30:16,980 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:30:16,992 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=LoopHeads, 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;@1c045b2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:30:16,992 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations.
[2024-11-23 23:30:17,021 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-23 23:30:17,021 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-11-23 23:30:17,021 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-23 23:30:17,022 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:17,022 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-23 23:30:17,023 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:17,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:17,032 INFO L85 PathProgramCache]: Analyzing trace with hash 771548, now seen corresponding path program 1 times
[2024-11-23 23:30:17,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:17,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140422479]
[2024-11-23 23:30:17,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:17,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:17,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:17,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:17,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140422479]
[2024-11-23 23:30:17,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140422479] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:17,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:17,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:30:17,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993166132]
[2024-11-23 23:30:17,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:17,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:30:17,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:17,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:30:17,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:30:17,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62
[2024-11-23 23:30:17,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 57 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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)
[2024-11-23 23:30:17,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:17,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62
[2024-11-23 23:30:17,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:18,465 INFO L124 PetriNetUnfolderBase]: 1728/2632 cut-off events.
[2024-11-23 23:30:18,466 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES.
[2024-11-23 23:30:18,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5048 conditions, 2632 events. 1728/2632 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 13597 event pairs, 995 based on Foata normal form. 3/1764 useless extension candidates. Maximal degree in co-relation 4649. Up to 2276 conditions per place.
[2024-11-23 23:30:18,505 INFO L140 encePairwiseOnDemand]: 46/62 looper letters, 41 selfloop transitions, 10 changer transitions 0/66 dead transitions.
[2024-11-23 23:30:18,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 249 flow
[2024-11-23 23:30:18,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:30:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-23 23:30:18,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions.
[2024-11-23 23:30:18,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5201612903225806
[2024-11-23 23:30:18,531 INFO L175 Difference]: Start difference. First operand has 58 places, 57 transitions, 129 flow. Second operand 4 states and 129 transitions.
[2024-11-23 23:30:18,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 249 flow
[2024-11-23 23:30:18,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 66 transitions, 240 flow, removed 0 selfloop flow, removed 5 redundant places.
[2024-11-23 23:30:18,555 INFO L231 Difference]: Finished difference. Result has 59 places, 66 transitions, 208 flow
[2024-11-23 23:30:18,558 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=59, PETRI_TRANSITIONS=66}
[2024-11-23 23:30:18,563 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 1 predicate places.
[2024-11-23 23:30:18,564 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 66 transitions, 208 flow
[2024-11-23 23:30:18,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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)
[2024-11-23 23:30:18,565 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:18,565 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2024-11-23 23:30:18,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 23:30:18,566 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:18,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:18,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1511112887, now seen corresponding path program 1 times
[2024-11-23 23:30:18,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:18,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342253337]
[2024-11-23 23:30:18,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:18,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:18,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:18,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:18,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342253337]
[2024-11-23 23:30:18,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342253337] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:30:18,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060452213]
[2024-11-23 23:30:18,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:18,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:30:18,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:30:18,852 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:30:18,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-23 23:30:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:18,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-23 23:30:18,980 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:30:19,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:19,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 23:30:19,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060452213] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:19,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-23 23:30:19,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2024-11-23 23:30:19,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996453534]
[2024-11-23 23:30:19,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:19,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:30:19,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:19,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:30:19,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-23 23:30:19,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62
[2024-11-23 23:30:19,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 66 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 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)
[2024-11-23 23:30:19,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:19,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62
[2024-11-23 23:30:19,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:19,755 INFO L124 PetriNetUnfolderBase]: 1728/2629 cut-off events.
[2024-11-23 23:30:19,755 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES.
[2024-11-23 23:30:19,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5025 conditions, 2629 events. 1728/2629 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 13605 event pairs, 995 based on Foata normal form. 3/1766 useless extension candidates. Maximal degree in co-relation 4952. Up to 2261 conditions per place.
[2024-11-23 23:30:19,782 INFO L140 encePairwiseOnDemand]: 49/62 looper letters, 31 selfloop transitions, 17 changer transitions 0/63 dead transitions.
[2024-11-23 23:30:19,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 63 transitions, 292 flow
[2024-11-23 23:30:19,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:30:19,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-23 23:30:19,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions.
[2024-11-23 23:30:19,786 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4274193548387097
[2024-11-23 23:30:19,786 INFO L175 Difference]: Start difference. First operand has 59 places, 66 transitions, 208 flow. Second operand 6 states and 159 transitions.
[2024-11-23 23:30:19,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 63 transitions, 292 flow
[2024-11-23 23:30:19,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 63 transitions, 292 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-23 23:30:19,790 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 230 flow
[2024-11-23 23:30:19,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=230, PETRI_PLACES=61, PETRI_TRANSITIONS=63}
[2024-11-23 23:30:19,792 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places.
[2024-11-23 23:30:19,792 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 230 flow
[2024-11-23 23:30:19,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 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)
[2024-11-23 23:30:19,792 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:19,793 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1]
[2024-11-23 23:30:19,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-23 23:30:19,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:30:19,997 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:19,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:19,998 INFO L85 PathProgramCache]: Analyzing trace with hash -400139992, now seen corresponding path program 1 times
[2024-11-23 23:30:19,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:19,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244066902]
[2024-11-23 23:30:19,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:19,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:20,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:20,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244066902]
[2024-11-23 23:30:20,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244066902] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:30:20,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563064462]
[2024-11-23 23:30:20,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:20,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:30:20,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:30:20,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:30:20,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 23:30:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:20,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-23 23:30:20,365 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:30:20,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:20,411 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:30:20,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:20,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563064462] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:30:20,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:30:20,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10
[2024-11-23 23:30:20,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973166547]
[2024-11-23 23:30:20,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:30:20,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-23 23:30:20,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:20,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-23 23:30:20,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132
[2024-11-23 23:30:20,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62
[2024-11-23 23:30:20,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 230 flow. Second operand has 12 states, 12 states have (on average 19.083333333333332) internal successors, (229), 12 states have internal predecessors, (229), 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)
[2024-11-23 23:30:20,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:20,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62
[2024-11-23 23:30:20,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:21,232 INFO L124 PetriNetUnfolderBase]: 1737/2665 cut-off events.
[2024-11-23 23:30:21,232 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES.
[2024-11-23 23:30:21,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5166 conditions, 2665 events. 1737/2665 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 13946 event pairs, 995 based on Foata normal form. 9/1808 useless extension candidates. Maximal degree in co-relation 4954. Up to 2276 conditions per place.
[2024-11-23 23:30:21,253 INFO L140 encePairwiseOnDemand]: 49/62 looper letters, 38 selfloop transitions, 37 changer transitions 0/90 dead transitions.
[2024-11-23 23:30:21,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 90 transitions, 554 flow
[2024-11-23 23:30:21,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-23 23:30:21,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-11-23 23:30:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 264 transitions.
[2024-11-23 23:30:21,256 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4258064516129032
[2024-11-23 23:30:21,256 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 230 flow. Second operand 10 states and 264 transitions.
[2024-11-23 23:30:21,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 90 transitions, 554 flow
[2024-11-23 23:30:21,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 90 transitions, 471 flow, removed 16 selfloop flow, removed 5 redundant places.
[2024-11-23 23:30:21,262 INFO L231 Difference]: Finished difference. Result has 68 places, 90 transitions, 445 flow
[2024-11-23 23:30:21,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=445, PETRI_PLACES=68, PETRI_TRANSITIONS=90}
[2024-11-23 23:30:21,263 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places.
[2024-11-23 23:30:21,263 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 90 transitions, 445 flow
[2024-11-23 23:30:21,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.083333333333332) internal successors, (229), 12 states have internal predecessors, (229), 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)
[2024-11-23 23:30:21,264 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:21,264 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:21,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-23 23:30:21,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:30:21,466 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:21,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:21,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1327114274, now seen corresponding path program 1 times
[2024-11-23 23:30:21,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:21,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091348005]
[2024-11-23 23:30:21,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:21,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:21,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:21,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:21,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091348005]
[2024-11-23 23:30:21,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091348005] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:21,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:21,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:30:21,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244264649]
[2024-11-23 23:30:21,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:21,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:30:21,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:21,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:30:21,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:30:21,630 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 62
[2024-11-23 23:30:21,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 90 transitions, 445 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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)
[2024-11-23 23:30:21,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:21,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 62
[2024-11-23 23:30:21,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:22,134 INFO L124 PetriNetUnfolderBase]: 2009/3039 cut-off events.
[2024-11-23 23:30:22,134 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES.
[2024-11-23 23:30:22,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5933 conditions, 3039 events. 2009/3039 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 16112 event pairs, 829 based on Foata normal form. 86/2122 useless extension candidates. Maximal degree in co-relation 5835. Up to 1981 conditions per place.
[2024-11-23 23:30:22,155 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 87 selfloop transitions, 3 changer transitions 0/106 dead transitions.
[2024-11-23 23:30:22,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 106 transitions, 660 flow
[2024-11-23 23:30:22,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:30:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-23 23:30:22,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions.
[2024-11-23 23:30:22,158 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5766129032258065
[2024-11-23 23:30:22,158 INFO L175 Difference]: Start difference. First operand has 68 places, 90 transitions, 445 flow. Second operand 4 states and 143 transitions.
[2024-11-23 23:30:22,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 106 transitions, 660 flow
[2024-11-23 23:30:22,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 623 flow, removed 9 selfloop flow, removed 2 redundant places.
[2024-11-23 23:30:22,164 INFO L231 Difference]: Finished difference. Result has 68 places, 89 transitions, 412 flow
[2024-11-23 23:30:22,164 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=412, PETRI_PLACES=68, PETRI_TRANSITIONS=89}
[2024-11-23 23:30:22,165 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places.
[2024-11-23 23:30:22,165 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 89 transitions, 412 flow
[2024-11-23 23:30:22,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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)
[2024-11-23 23:30:22,166 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:22,166 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:22,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 23:30:22,166 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:22,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:22,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1809129645, now seen corresponding path program 1 times
[2024-11-23 23:30:22,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:22,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658652946]
[2024-11-23 23:30:22,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:22,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:22,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:22,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658652946]
[2024-11-23 23:30:22,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658652946] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:22,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:22,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:30:22,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372266492]
[2024-11-23 23:30:22,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:22,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:30:22,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:22,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:30:22,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:30:22,325 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 62
[2024-11-23 23:30:22,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 89 transitions, 412 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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)
[2024-11-23 23:30:22,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:22,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 62
[2024-11-23 23:30:22,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:23,001 INFO L124 PetriNetUnfolderBase]: 3164/4616 cut-off events.
[2024-11-23 23:30:23,001 INFO L125 PetriNetUnfolderBase]: For 345/345 co-relation queries the response was YES.
[2024-11-23 23:30:23,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9428 conditions, 4616 events. 3164/4616 cut-off events. For 345/345 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 24582 event pairs, 657 based on Foata normal form. 86/3529 useless extension candidates. Maximal degree in co-relation 9334. Up to 2383 conditions per place.
[2024-11-23 23:30:23,045 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 112 selfloop transitions, 3 changer transitions 0/131 dead transitions.
[2024-11-23 23:30:23,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 131 transitions, 738 flow
[2024-11-23 23:30:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:30:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-23 23:30:23,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions.
[2024-11-23 23:30:23,047 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6774193548387096
[2024-11-23 23:30:23,047 INFO L175 Difference]: Start difference. First operand has 68 places, 89 transitions, 412 flow. Second operand 4 states and 168 transitions.
[2024-11-23 23:30:23,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 131 transitions, 738 flow
[2024-11-23 23:30:23,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 131 transitions, 728 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-23 23:30:23,055 INFO L231 Difference]: Finished difference. Result has 70 places, 91 transitions, 426 flow
[2024-11-23 23:30:23,055 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=426, PETRI_PLACES=70, PETRI_TRANSITIONS=91}
[2024-11-23 23:30:23,056 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places.
[2024-11-23 23:30:23,056 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 91 transitions, 426 flow
[2024-11-23 23:30:23,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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)
[2024-11-23 23:30:23,056 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:23,056 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:23,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-23 23:30:23,057 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:23,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:23,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1676917769, now seen corresponding path program 1 times
[2024-11-23 23:30:23,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:23,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864309672]
[2024-11-23 23:30:23,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:23,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:23,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:23,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:23,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864309672]
[2024-11-23 23:30:23,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864309672] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:23,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:23,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:30:23,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16006881]
[2024-11-23 23:30:23,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:23,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:30:23,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:23,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:30:23,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:30:23,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 62
[2024-11-23 23:30:23,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 91 transitions, 426 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:30:23,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:23,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 62
[2024-11-23 23:30:23,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:24,200 INFO L124 PetriNetUnfolderBase]: 5476/8005 cut-off events.
[2024-11-23 23:30:24,200 INFO L125 PetriNetUnfolderBase]: For 1192/1304 co-relation queries the response was YES.
[2024-11-23 23:30:24,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16763 conditions, 8005 events. 5476/8005 cut-off events. For 1192/1304 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 45083 event pairs, 1108 based on Foata normal form. 152/6207 useless extension candidates. Maximal degree in co-relation 16667. Up to 4449 conditions per place.
[2024-11-23 23:30:24,254 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 116 selfloop transitions, 3 changer transitions 0/134 dead transitions.
[2024-11-23 23:30:24,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 134 transitions, 779 flow
[2024-11-23 23:30:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:30:24,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-23 23:30:24,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions.
[2024-11-23 23:30:24,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6733870967741935
[2024-11-23 23:30:24,257 INFO L175 Difference]: Start difference. First operand has 70 places, 91 transitions, 426 flow. Second operand 4 states and 167 transitions.
[2024-11-23 23:30:24,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 134 transitions, 779 flow
[2024-11-23 23:30:24,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 134 transitions, 775 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-23 23:30:24,265 INFO L231 Difference]: Finished difference. Result has 74 places, 93 transitions, 446 flow
[2024-11-23 23:30:24,266 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=446, PETRI_PLACES=74, PETRI_TRANSITIONS=93}
[2024-11-23 23:30:24,267 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 16 predicate places.
[2024-11-23 23:30:24,268 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 93 transitions, 446 flow
[2024-11-23 23:30:24,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:30:24,268 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:24,268 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:24,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-23 23:30:24,269 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:24,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:24,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1602289019, now seen corresponding path program 1 times
[2024-11-23 23:30:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:24,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955542374]
[2024-11-23 23:30:24,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:24,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:24,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:24,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955542374]
[2024-11-23 23:30:24,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955542374] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:24,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:24,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 23:30:24,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6791474]
[2024-11-23 23:30:24,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:24,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:30:24,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:24,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:30:24,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:30:24,408 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 62
[2024-11-23 23:30:24,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 93 transitions, 446 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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)
[2024-11-23 23:30:24,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:24,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 62
[2024-11-23 23:30:24,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:25,693 INFO L124 PetriNetUnfolderBase]: 8504/12462 cut-off events.
[2024-11-23 23:30:25,694 INFO L125 PetriNetUnfolderBase]: For 3510/3962 co-relation queries the response was YES.
[2024-11-23 23:30:25,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27543 conditions, 12462 events. 8504/12462 cut-off events. For 3510/3962 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 73213 event pairs, 2163 based on Foata normal form. 224/10421 useless extension candidates. Maximal degree in co-relation 27445. Up to 6413 conditions per place.
[2024-11-23 23:30:25,785 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 119 selfloop transitions, 3 changer transitions 0/137 dead transitions.
[2024-11-23 23:30:25,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 137 transitions, 824 flow
[2024-11-23 23:30:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:30:25,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-23 23:30:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions.
[2024-11-23 23:30:25,787 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6612903225806451
[2024-11-23 23:30:25,787 INFO L175 Difference]: Start difference. First operand has 74 places, 93 transitions, 446 flow. Second operand 4 states and 164 transitions.
[2024-11-23 23:30:25,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 137 transitions, 824 flow
[2024-11-23 23:30:25,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 137 transitions, 820 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-23 23:30:25,793 INFO L231 Difference]: Finished difference. Result has 78 places, 95 transitions, 466 flow
[2024-11-23 23:30:25,793 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=466, PETRI_PLACES=78, PETRI_TRANSITIONS=95}
[2024-11-23 23:30:25,795 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 20 predicate places.
[2024-11-23 23:30:25,795 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 95 transitions, 466 flow
[2024-11-23 23:30:25,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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)
[2024-11-23 23:30:25,795 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:25,795 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:25,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-23 23:30:25,796 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:25,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:25,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1145902761, now seen corresponding path program 1 times
[2024-11-23 23:30:25,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:25,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863593727]
[2024-11-23 23:30:25,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-23 23:30:25,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:25,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863593727]
[2024-11-23 23:30:25,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863593727] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:25,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:25,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:30:25,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437566401]
[2024-11-23 23:30:25,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:25,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:30:25,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:25,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:30:25,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:30:25,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 62
[2024-11-23 23:30:25,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 95 transitions, 466 flow. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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)
[2024-11-23 23:30:25,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:25,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 62
[2024-11-23 23:30:25,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:27,555 INFO L124 PetriNetUnfolderBase]: 9178/14727 cut-off events.
[2024-11-23 23:30:27,555 INFO L125 PetriNetUnfolderBase]: For 4969/5108 co-relation queries the response was YES.
[2024-11-23 23:30:27,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33368 conditions, 14727 events. 9178/14727 cut-off events. For 4969/5108 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 101066 event pairs, 6652 based on Foata normal form. 0/13035 useless extension candidates. Maximal degree in co-relation 33211. Up to 9737 conditions per place.
[2024-11-23 23:30:27,672 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 131 selfloop transitions, 3 changer transitions 0/151 dead transitions.
[2024-11-23 23:30:27,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 151 transitions, 1002 flow
[2024-11-23 23:30:27,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:30:27,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-23 23:30:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions.
[2024-11-23 23:30:27,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6612903225806451
[2024-11-23 23:30:27,674 INFO L175 Difference]: Start difference. First operand has 78 places, 95 transitions, 466 flow. Second operand 4 states and 164 transitions.
[2024-11-23 23:30:27,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 151 transitions, 1002 flow
[2024-11-23 23:30:27,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 151 transitions, 999 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-23 23:30:27,682 INFO L231 Difference]: Finished difference. Result has 81 places, 95 transitions, 473 flow
[2024-11-23 23:30:27,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=473, PETRI_PLACES=81, PETRI_TRANSITIONS=95}
[2024-11-23 23:30:27,683 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 23 predicate places.
[2024-11-23 23:30:27,683 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 95 transitions, 473 flow
[2024-11-23 23:30:27,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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)
[2024-11-23 23:30:27,684 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:27,684 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:27,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-23 23:30:27,684 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:27,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:27,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1968286098, now seen corresponding path program 1 times
[2024-11-23 23:30:27,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:27,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904472867]
[2024-11-23 23:30:27,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:27,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 23:30:27,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:27,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904472867]
[2024-11-23 23:30:27,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904472867] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:27,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:27,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:30:27,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168731970]
[2024-11-23 23:30:27,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:27,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:30:27,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:27,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:30:27,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:30:27,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 62
[2024-11-23 23:30:27,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 95 transitions, 473 flow. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:30:27,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:27,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 62
[2024-11-23 23:30:27,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:29,582 INFO L124 PetriNetUnfolderBase]: 11462/18144 cut-off events.
[2024-11-23 23:30:29,583 INFO L125 PetriNetUnfolderBase]: For 6302/6714 co-relation queries the response was YES.
[2024-11-23 23:30:29,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41364 conditions, 18144 events. 11462/18144 cut-off events. For 6302/6714 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 126459 event pairs, 4982 based on Foata normal form. 0/16698 useless extension candidates. Maximal degree in co-relation 41150. Up to 6489 conditions per place.
[2024-11-23 23:30:29,706 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 133 selfloop transitions, 11 changer transitions 0/161 dead transitions.
[2024-11-23 23:30:29,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 161 transitions, 1010 flow
[2024-11-23 23:30:29,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:30:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-23 23:30:29,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 235 transitions.
[2024-11-23 23:30:29,709 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6317204301075269
[2024-11-23 23:30:29,709 INFO L175 Difference]: Start difference. First operand has 81 places, 95 transitions, 473 flow. Second operand 6 states and 235 transitions.
[2024-11-23 23:30:29,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 161 transitions, 1010 flow
[2024-11-23 23:30:29,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 161 transitions, 1006 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-23 23:30:29,718 INFO L231 Difference]: Finished difference. Result has 87 places, 97 transitions, 514 flow
[2024-11-23 23:30:29,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=87, PETRI_TRANSITIONS=97}
[2024-11-23 23:30:29,719 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 29 predicate places.
[2024-11-23 23:30:29,719 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 97 transitions, 514 flow
[2024-11-23 23:30:29,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:30:29,720 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:29,720 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1]
[2024-11-23 23:30:29,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-23 23:30:29,720 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:29,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1636434845, now seen corresponding path program 2 times
[2024-11-23 23:30:29,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:29,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144309599]
[2024-11-23 23:30:29,721 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 23:30:29,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:29,741 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-23 23:30:29,741 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:30:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-23 23:30:29,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:29,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144309599]
[2024-11-23 23:30:29,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144309599] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:30:29,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392134355]
[2024-11-23 23:30:29,795 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 23:30:29,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:30:29,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:30:29,797 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:30:29,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 23:30:29,896 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-23 23:30:29,896 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:30:29,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 23:30:29,898 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:30:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-23 23:30:29,951 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:30:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked.
[2024-11-23 23:30:30,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392134355] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:30:30,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:30:30,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2
[2024-11-23 23:30:30,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082110871]
[2024-11-23 23:30:30,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:30:30,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:30:30,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:30,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:30:30,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:30:30,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62
[2024-11-23 23:30:30,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 97 transitions, 514 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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)
[2024-11-23 23:30:30,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:30,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62
[2024-11-23 23:30:30,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:31,954 INFO L124 PetriNetUnfolderBase]: 11462/18824 cut-off events.
[2024-11-23 23:30:31,955 INFO L125 PetriNetUnfolderBase]: For 7511/7522 co-relation queries the response was YES.
[2024-11-23 23:30:32,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43328 conditions, 18824 events. 11462/18824 cut-off events. For 7511/7522 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 138696 event pairs, 8454 based on Foata normal form. 1/17975 useless extension candidates. Maximal degree in co-relation 43110. Up to 15782 conditions per place.
[2024-11-23 23:30:32,061 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 66 selfloop transitions, 16 changer transitions 0/96 dead transitions.
[2024-11-23 23:30:32,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 96 transitions, 668 flow
[2024-11-23 23:30:32,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 23:30:32,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-23 23:30:32,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions.
[2024-11-23 23:30:32,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4475806451612903
[2024-11-23 23:30:32,063 INFO L175 Difference]: Start difference. First operand has 87 places, 97 transitions, 514 flow. Second operand 4 states and 111 transitions.
[2024-11-23 23:30:32,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 96 transitions, 668 flow
[2024-11-23 23:30:32,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 96 transitions, 656 flow, removed 1 selfloop flow, removed 2 redundant places.
[2024-11-23 23:30:32,091 INFO L231 Difference]: Finished difference. Result has 87 places, 96 transitions, 524 flow
[2024-11-23 23:30:32,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=524, PETRI_PLACES=87, PETRI_TRANSITIONS=96}
[2024-11-23 23:30:32,094 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 29 predicate places.
[2024-11-23 23:30:32,094 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 96 transitions, 524 flow
[2024-11-23 23:30:32,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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)
[2024-11-23 23:30:32,094 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:32,095 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1]
[2024-11-23 23:30:32,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-23 23:30:32,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-23 23:30:32,299 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:32,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:32,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1132866000, now seen corresponding path program 1 times
[2024-11-23 23:30:32,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:32,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968065069]
[2024-11-23 23:30:32,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:32,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:32,563 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:32,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:32,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968065069]
[2024-11-23 23:30:32,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968065069] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:30:32,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565546817]
[2024-11-23 23:30:32,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:32,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:30:32,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:30:32,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:30:32,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 23:30:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:32,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-23 23:30:32,674 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:30:32,736 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:32,736 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:30:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:30:32,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565546817] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:30:32,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:30:32,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23
[2024-11-23 23:30:32,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888240402]
[2024-11-23 23:30:32,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:30:32,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-23 23:30:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:32,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-23 23:30:32,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552
[2024-11-23 23:30:33,062 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62
[2024-11-23 23:30:33,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 96 transitions, 524 flow. Second operand has 24 states, 24 states have (on average 19.083333333333332) internal successors, (458), 24 states have internal predecessors, (458), 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)
[2024-11-23 23:30:33,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:33,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62
[2024-11-23 23:30:33,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:35,645 INFO L124 PetriNetUnfolderBase]: 11504/18992 cut-off events.
[2024-11-23 23:30:35,645 INFO L125 PetriNetUnfolderBase]: For 7525/7565 co-relation queries the response was YES.
[2024-11-23 23:30:35,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43611 conditions, 18992 events. 11504/18992 cut-off events. For 7525/7565 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 140619 event pairs, 8454 based on Foata normal form. 36/18132 useless extension candidates. Maximal degree in co-relation 42800. Up to 15752 conditions per place.
[2024-11-23 23:30:35,749 INFO L140 encePairwiseOnDemand]: 50/62 looper letters, 43 selfloop transitions, 93 changer transitions 0/150 dead transitions.
[2024-11-23 23:30:35,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 150 transitions, 1192 flow
[2024-11-23 23:30:35,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2024-11-23 23:30:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2024-11-23 23:30:35,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 536 transitions.
[2024-11-23 23:30:35,755 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39296187683284456
[2024-11-23 23:30:35,756 INFO L175 Difference]: Start difference. First operand has 87 places, 96 transitions, 524 flow. Second operand 22 states and 536 transitions.
[2024-11-23 23:30:35,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 150 transitions, 1192 flow
[2024-11-23 23:30:35,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 150 transitions, 1097 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-23 23:30:35,769 INFO L231 Difference]: Finished difference. Result has 110 places, 150 transitions, 1085 flow
[2024-11-23 23:30:35,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1085, PETRI_PLACES=110, PETRI_TRANSITIONS=150}
[2024-11-23 23:30:35,770 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 52 predicate places.
[2024-11-23 23:30:35,770 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 150 transitions, 1085 flow
[2024-11-23 23:30:35,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 19.083333333333332) internal successors, (458), 24 states have internal predecessors, (458), 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)
[2024-11-23 23:30:35,771 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:35,771 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:35,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-23 23:30:35,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-11-23 23:30:35,971 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:35,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1846223776, now seen corresponding path program 1 times
[2024-11-23 23:30:35,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:35,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593227835]
[2024-11-23 23:30:35,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:35,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:36,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 23:30:36,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:36,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593227835]
[2024-11-23 23:30:36,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593227835] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:36,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:36,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:30:36,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249030018]
[2024-11-23 23:30:36,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:36,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:30:36,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:36,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:30:36,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:30:36,096 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 62
[2024-11-23 23:30:36,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 150 transitions, 1085 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:30:36,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:36,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 62
[2024-11-23 23:30:36,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:37,965 INFO L124 PetriNetUnfolderBase]: 9787/15780 cut-off events.
[2024-11-23 23:30:37,965 INFO L125 PetriNetUnfolderBase]: For 6698/6898 co-relation queries the response was YES.
[2024-11-23 23:30:38,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37003 conditions, 15780 events. 9787/15780 cut-off events. For 6698/6898 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 109984 event pairs, 7166 based on Foata normal form. 0/15152 useless extension candidates. Maximal degree in co-relation 36710. Up to 12397 conditions per place.
[2024-11-23 23:30:38,065 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 200 selfloop transitions, 17 changer transitions 5/238 dead transitions.
[2024-11-23 23:30:38,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 238 transitions, 2179 flow
[2024-11-23 23:30:38,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 23:30:38,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-23 23:30:38,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 190 transitions.
[2024-11-23 23:30:38,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6129032258064516
[2024-11-23 23:30:38,067 INFO L175 Difference]: Start difference. First operand has 110 places, 150 transitions, 1085 flow. Second operand 5 states and 190 transitions.
[2024-11-23 23:30:38,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 238 transitions, 2179 flow
[2024-11-23 23:30:38,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 238 transitions, 1785 flow, removed 114 selfloop flow, removed 9 redundant places.
[2024-11-23 23:30:38,085 INFO L231 Difference]: Finished difference. Result has 107 places, 164 transitions, 1025 flow
[2024-11-23 23:30:38,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1025, PETRI_PLACES=107, PETRI_TRANSITIONS=164}
[2024-11-23 23:30:38,088 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 49 predicate places.
[2024-11-23 23:30:38,090 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 164 transitions, 1025 flow
[2024-11-23 23:30:38,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:30:38,090 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:38,090 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:38,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-23 23:30:38,091 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:38,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:38,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1829054364, now seen corresponding path program 1 times
[2024-11-23 23:30:38,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:38,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571702375]
[2024-11-23 23:30:38,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:38,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:38,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-23 23:30:38,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:38,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571702375]
[2024-11-23 23:30:38,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571702375] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:38,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:38,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:30:38,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584387574]
[2024-11-23 23:30:38,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:38,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:30:38,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:38,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:30:38,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:30:38,240 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 62
[2024-11-23 23:30:38,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 164 transitions, 1025 flow. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:30:38,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:38,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 62
[2024-11-23 23:30:38,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:39,967 INFO L124 PetriNetUnfolderBase]: 8436/13119 cut-off events.
[2024-11-23 23:30:39,967 INFO L125 PetriNetUnfolderBase]: For 5839/6405 co-relation queries the response was YES.
[2024-11-23 23:30:40,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31514 conditions, 13119 events. 8436/13119 cut-off events. For 5839/6405 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 83734 event pairs, 3460 based on Foata normal form. 68/13135 useless extension candidates. Maximal degree in co-relation 31258. Up to 5601 conditions per place.
[2024-11-23 23:30:40,046 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 204 selfloop transitions, 19 changer transitions 3/242 dead transitions.
[2024-11-23 23:30:40,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 242 transitions, 1815 flow
[2024-11-23 23:30:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 23:30:40,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-23 23:30:40,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 233 transitions.
[2024-11-23 23:30:40,048 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6263440860215054
[2024-11-23 23:30:40,048 INFO L175 Difference]: Start difference. First operand has 107 places, 164 transitions, 1025 flow. Second operand 6 states and 233 transitions.
[2024-11-23 23:30:40,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 242 transitions, 1815 flow
[2024-11-23 23:30:40,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 242 transitions, 1810 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-23 23:30:40,067 INFO L231 Difference]: Finished difference. Result has 111 places, 164 transitions, 1063 flow
[2024-11-23 23:30:40,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1063, PETRI_PLACES=111, PETRI_TRANSITIONS=164}
[2024-11-23 23:30:40,068 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 53 predicate places.
[2024-11-23 23:30:40,069 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 164 transitions, 1063 flow
[2024-11-23 23:30:40,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:30:40,069 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:40,069 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:40,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-23 23:30:40,070 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:40,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:40,070 INFO L85 PathProgramCache]: Analyzing trace with hash 455051683, now seen corresponding path program 1 times
[2024-11-23 23:30:40,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:40,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193356964]
[2024-11-23 23:30:40,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:40,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-23 23:30:40,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:40,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193356964]
[2024-11-23 23:30:40,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193356964] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:40,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:40,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:30:40,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673560828]
[2024-11-23 23:30:40,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:40,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:30:40,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:40,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:30:40,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:30:40,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 62
[2024-11-23 23:30:40,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 164 transitions, 1063 flow. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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)
[2024-11-23 23:30:40,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:40,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 62
[2024-11-23 23:30:40,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:42,097 INFO L124 PetriNetUnfolderBase]: 10833/17450 cut-off events.
[2024-11-23 23:30:42,098 INFO L125 PetriNetUnfolderBase]: For 8834/9171 co-relation queries the response was YES.
[2024-11-23 23:30:42,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41938 conditions, 17450 events. 10833/17450 cut-off events. For 8834/9171 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 122070 event pairs, 5144 based on Foata normal form. 267/17668 useless extension candidates. Maximal degree in co-relation 41680. Up to 6143 conditions per place.
[2024-11-23 23:30:42,214 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 169 selfloop transitions, 29 changer transitions 1/215 dead transitions.
[2024-11-23 23:30:42,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 215 transitions, 1631 flow
[2024-11-23 23:30:42,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 23:30:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-23 23:30:42,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 205 transitions.
[2024-11-23 23:30:42,216 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6612903225806451
[2024-11-23 23:30:42,216 INFO L175 Difference]: Start difference. First operand has 111 places, 164 transitions, 1063 flow. Second operand 5 states and 205 transitions.
[2024-11-23 23:30:42,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 215 transitions, 1631 flow
[2024-11-23 23:30:42,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 215 transitions, 1592 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-11-23 23:30:42,242 INFO L231 Difference]: Finished difference. Result has 112 places, 163 transitions, 1080 flow
[2024-11-23 23:30:42,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1080, PETRI_PLACES=112, PETRI_TRANSITIONS=163}
[2024-11-23 23:30:42,243 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 54 predicate places.
[2024-11-23 23:30:42,243 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 163 transitions, 1080 flow
[2024-11-23 23:30:42,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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)
[2024-11-23 23:30:42,243 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:42,243 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:42,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-23 23:30:42,243 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:42,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2143781691, now seen corresponding path program 1 times
[2024-11-23 23:30:42,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:42,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384413264]
[2024-11-23 23:30:42,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:42,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-23 23:30:42,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:42,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384413264]
[2024-11-23 23:30:42,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384413264] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:30:42,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:30:42,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:30:42,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328392876]
[2024-11-23 23:30:42,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:30:42,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:30:42,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:42,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:30:42,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:30:42,388 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 62
[2024-11-23 23:30:42,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 163 transitions, 1080 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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)
[2024-11-23 23:30:42,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:42,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 62
[2024-11-23 23:30:42,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:44,281 INFO L124 PetriNetUnfolderBase]: 9088/14694 cut-off events.
[2024-11-23 23:30:44,281 INFO L125 PetriNetUnfolderBase]: For 8589/8921 co-relation queries the response was YES.
[2024-11-23 23:30:44,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35997 conditions, 14694 events. 9088/14694 cut-off events. For 8589/8921 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 100680 event pairs, 4030 based on Foata normal form. 90/14753 useless extension candidates. Maximal degree in co-relation 35737. Up to 6584 conditions per place.
[2024-11-23 23:30:44,377 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 156 selfloop transitions, 28 changer transitions 6/206 dead transitions.
[2024-11-23 23:30:44,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 206 transitions, 1600 flow
[2024-11-23 23:30:44,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-23 23:30:44,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-23 23:30:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 199 transitions.
[2024-11-23 23:30:44,379 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6419354838709678
[2024-11-23 23:30:44,379 INFO L175 Difference]: Start difference. First operand has 112 places, 163 transitions, 1080 flow. Second operand 5 states and 199 transitions.
[2024-11-23 23:30:44,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 206 transitions, 1600 flow
[2024-11-23 23:30:44,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 206 transitions, 1569 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-23 23:30:44,400 INFO L231 Difference]: Finished difference. Result has 115 places, 162 transitions, 1095 flow
[2024-11-23 23:30:44,401 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1051, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1095, PETRI_PLACES=115, PETRI_TRANSITIONS=162}
[2024-11-23 23:30:44,401 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 57 predicate places.
[2024-11-23 23:30:44,401 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 162 transitions, 1095 flow
[2024-11-23 23:30:44,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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)
[2024-11-23 23:30:44,401 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:44,402 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:44,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-23 23:30:44,402 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:44,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:44,402 INFO L85 PathProgramCache]: Analyzing trace with hash -481516863, now seen corresponding path program 1 times
[2024-11-23 23:30:44,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:44,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165380907]
[2024-11-23 23:30:44,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:44,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:44,686 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:30:44,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:44,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165380907]
[2024-11-23 23:30:44,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165380907] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:30:44,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910804897]
[2024-11-23 23:30:44,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:44,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:30:44,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:30:44,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:30:44,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-23 23:30:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:44,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-23 23:30:44,825 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:30:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:30:45,069 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:30:45,270 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:30:45,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910804897] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:30:45,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:30:45,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20
[2024-11-23 23:30:45,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894173846]
[2024-11-23 23:30:45,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:30:45,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-23 23:30:45,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:45,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-23 23:30:45,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420
[2024-11-23 23:30:45,593 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62
[2024-11-23 23:30:45,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 162 transitions, 1095 flow. Second operand has 21 states, 21 states have (on average 17.952380952380953) internal successors, (377), 21 states have internal predecessors, (377), 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)
[2024-11-23 23:30:45,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:45,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62
[2024-11-23 23:30:45,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:30:52,228 INFO L124 PetriNetUnfolderBase]: 28475/44128 cut-off events.
[2024-11-23 23:30:52,228 INFO L125 PetriNetUnfolderBase]: For 30772/32218 co-relation queries the response was YES.
[2024-11-23 23:30:52,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110598 conditions, 44128 events. 28475/44128 cut-off events. For 30772/32218 co-relation queries the response was YES. Maximal size of possible extension queue 1455. Compared 338420 event pairs, 10971 based on Foata normal form. 744/44604 useless extension candidates. Maximal degree in co-relation 110116. Up to 6421 conditions per place.
[2024-11-23 23:30:52,524 INFO L140 encePairwiseOnDemand]: 49/62 looper letters, 552 selfloop transitions, 226 changer transitions 41/832 dead transitions.
[2024-11-23 23:30:52,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 832 transitions, 6210 flow
[2024-11-23 23:30:52,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states.
[2024-11-23 23:30:52,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states.
[2024-11-23 23:30:52,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 1180 transitions.
[2024-11-23 23:30:52,530 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40494166094715167
[2024-11-23 23:30:52,531 INFO L175 Difference]: Start difference. First operand has 115 places, 162 transitions, 1095 flow. Second operand 47 states and 1180 transitions.
[2024-11-23 23:30:52,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 832 transitions, 6210 flow
[2024-11-23 23:30:52,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 832 transitions, 6094 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-23 23:30:52,636 INFO L231 Difference]: Finished difference. Result has 170 places, 370 transitions, 3279 flow
[2024-11-23 23:30:52,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=3279, PETRI_PLACES=170, PETRI_TRANSITIONS=370}
[2024-11-23 23:30:52,637 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 112 predicate places.
[2024-11-23 23:30:52,637 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 370 transitions, 3279 flow
[2024-11-23 23:30:52,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 17.952380952380953) internal successors, (377), 21 states have internal predecessors, (377), 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)
[2024-11-23 23:30:52,637 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:30:52,638 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:30:52,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-23 23:30:52,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-23 23:30:52,842 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:30:52,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:30:52,842 INFO L85 PathProgramCache]: Analyzing trace with hash -13849394, now seen corresponding path program 1 times
[2024-11-23 23:30:52,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:30:52,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806145962]
[2024-11-23 23:30:52,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:52,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:30:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:52,946 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 23:30:52,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:30:52,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806145962]
[2024-11-23 23:30:52,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806145962] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:30:52,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709896606]
[2024-11-23 23:30:52,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:30:52,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:30:52,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:30:52,949 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:30:52,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-23 23:30:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:30:53,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-23 23:30:53,054 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:30:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:30:53,238 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:30:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:30:53,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709896606] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:30:53,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:30:53,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18
[2024-11-23 23:30:53,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202121658]
[2024-11-23 23:30:53,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:30:53,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-23 23:30:53,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:30:53,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-23 23:30:53,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342
[2024-11-23 23:30:53,592 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62
[2024-11-23 23:30:53,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 370 transitions, 3279 flow. Second operand has 19 states, 19 states have (on average 18.526315789473685) internal successors, (352), 19 states have internal predecessors, (352), 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)
[2024-11-23 23:30:53,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:30:53,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62
[2024-11-23 23:30:53,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:31:00,153 INFO L124 PetriNetUnfolderBase]: 25283/38712 cut-off events.
[2024-11-23 23:31:00,154 INFO L125 PetriNetUnfolderBase]: For 46193/47091 co-relation queries the response was YES.
[2024-11-23 23:31:00,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102364 conditions, 38712 events. 25283/38712 cut-off events. For 46193/47091 co-relation queries the response was YES. Maximal size of possible extension queue 1282. Compared 286274 event pairs, 8714 based on Foata normal form. 882/39093 useless extension candidates. Maximal degree in co-relation 101803. Up to 8500 conditions per place.
[2024-11-23 23:31:00,497 INFO L140 encePairwiseOnDemand]: 48/62 looper letters, 358 selfloop transitions, 168 changer transitions 12/550 dead transitions.
[2024-11-23 23:31:00,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 550 transitions, 5139 flow
[2024-11-23 23:31:00,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-23 23:31:00,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2024-11-23 23:31:00,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 466 transitions.
[2024-11-23 23:31:00,500 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44212523719165087
[2024-11-23 23:31:00,500 INFO L175 Difference]: Start difference. First operand has 170 places, 370 transitions, 3279 flow. Second operand 17 states and 466 transitions.
[2024-11-23 23:31:00,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 550 transitions, 5139 flow
[2024-11-23 23:31:00,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 550 transitions, 5082 flow, removed 13 selfloop flow, removed 4 redundant places.
[2024-11-23 23:31:00,601 INFO L231 Difference]: Finished difference. Result has 182 places, 371 transitions, 3570 flow
[2024-11-23 23:31:00,602 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3221, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3570, PETRI_PLACES=182, PETRI_TRANSITIONS=371}
[2024-11-23 23:31:00,602 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 124 predicate places.
[2024-11-23 23:31:00,602 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 371 transitions, 3570 flow
[2024-11-23 23:31:00,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.526315789473685) internal successors, (352), 19 states have internal predecessors, (352), 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)
[2024-11-23 23:31:00,603 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:31:00,603 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:31:00,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2024-11-23 23:31:00,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-23 23:31:00,804 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:31:00,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:31:00,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1869906990, now seen corresponding path program 1 times
[2024-11-23 23:31:00,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:31:00,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860956406]
[2024-11-23 23:31:00,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:31:00,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:31:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:31:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-23 23:31:00,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:31:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860956406]
[2024-11-23 23:31:00,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860956406] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:31:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053961414]
[2024-11-23 23:31:00,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:31:00,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:31:00,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:31:00,930 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:31:00,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-23 23:31:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:31:01,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-23 23:31:01,061 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:31:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:31:01,267 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:31:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-23 23:31:01,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053961414] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:31:01,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:31:01,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 17
[2024-11-23 23:31:01,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210739135]
[2024-11-23 23:31:01,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:31:01,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-23 23:31:01,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:31:01,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-23 23:31:01,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306
[2024-11-23 23:31:01,647 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62
[2024-11-23 23:31:01,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 371 transitions, 3570 flow. Second operand has 18 states, 18 states have (on average 19.055555555555557) internal successors, (343), 18 states have internal predecessors, (343), 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)
[2024-11-23 23:31:01,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:31:01,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62
[2024-11-23 23:31:01,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:31:07,573 INFO L124 PetriNetUnfolderBase]: 22624/34527 cut-off events.
[2024-11-23 23:31:07,573 INFO L125 PetriNetUnfolderBase]: For 53312/53680 co-relation queries the response was YES.
[2024-11-23 23:31:07,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95121 conditions, 34527 events. 22624/34527 cut-off events. For 53312/53680 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 248615 event pairs, 8754 based on Foata normal form. 748/34867 useless extension candidates. Maximal degree in co-relation 94531. Up to 7783 conditions per place.
[2024-11-23 23:31:07,911 INFO L140 encePairwiseOnDemand]: 48/62 looper letters, 406 selfloop transitions, 141 changer transitions 32/590 dead transitions.
[2024-11-23 23:31:07,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 590 transitions, 6014 flow
[2024-11-23 23:31:07,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-23 23:31:07,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2024-11-23 23:31:07,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 473 transitions.
[2024-11-23 23:31:07,914 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4487666034155598
[2024-11-23 23:31:07,914 INFO L175 Difference]: Start difference. First operand has 182 places, 371 transitions, 3570 flow. Second operand 17 states and 473 transitions.
[2024-11-23 23:31:07,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 590 transitions, 6014 flow
[2024-11-23 23:31:08,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 590 transitions, 5859 flow, removed 11 selfloop flow, removed 10 redundant places.
[2024-11-23 23:31:08,061 INFO L231 Difference]: Finished difference. Result has 189 places, 370 transitions, 3774 flow
[2024-11-23 23:31:08,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3481, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3774, PETRI_PLACES=189, PETRI_TRANSITIONS=370}
[2024-11-23 23:31:08,062 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 131 predicate places.
[2024-11-23 23:31:08,062 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 370 transitions, 3774 flow
[2024-11-23 23:31:08,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 19.055555555555557) internal successors, (343), 18 states have internal predecessors, (343), 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)
[2024-11-23 23:31:08,062 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:31:08,062 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:31:08,449 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process
[2024-11-23 23:31:08,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-23 23:31:08,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-11-23 23:31:08,450 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:31:08,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:31:08,450 INFO L85 PathProgramCache]: Analyzing trace with hash 2100497152, now seen corresponding path program 1 times
[2024-11-23 23:31:08,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:31:08,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775097235]
[2024-11-23 23:31:08,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:31:08,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:31:08,458 WARN L724 oredProcess$PipePump]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] The stream was forcibly closed: stdIn
[2024-11-23 23:31:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:31:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-23 23:31:08,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:31:08,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775097235]
[2024-11-23 23:31:08,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775097235] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:31:08,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229506346]
[2024-11-23 23:31:08,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:31:08,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:31:08,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:31:08,618 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:31:08,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-23 23:31:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:31:08,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-23 23:31:08,771 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:31:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-23 23:31:08,953 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:31:09,125 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-23 23:31:09,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229506346] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:31:09,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:31:09,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18
[2024-11-23 23:31:09,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634589341]
[2024-11-23 23:31:09,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:31:09,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-23 23:31:09,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:31:09,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-23 23:31:09,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342
[2024-11-23 23:31:09,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62
[2024-11-23 23:31:09,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 370 transitions, 3774 flow. Second operand has 19 states, 19 states have (on average 18.36842105263158) internal successors, (349), 19 states have internal predecessors, (349), 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)
[2024-11-23 23:31:09,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:31:09,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62
[2024-11-23 23:31:09,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-23 23:31:18,258 INFO L124 PetriNetUnfolderBase]: 42579/64420 cut-off events.
[2024-11-23 23:31:18,258 INFO L125 PetriNetUnfolderBase]: For 108642/109378 co-relation queries the response was YES.
[2024-11-23 23:31:18,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179829 conditions, 64420 events. 42579/64420 cut-off events. For 108642/109378 co-relation queries the response was YES. Maximal size of possible extension queue 1820. Compared 490845 event pairs, 13463 based on Foata normal form. 854/65204 useless extension candidates. Maximal degree in co-relation 179221. Up to 12297 conditions per place.
[2024-11-23 23:31:18,820 INFO L140 encePairwiseOnDemand]: 49/62 looper letters, 270 selfloop transitions, 296 changer transitions 20/597 dead transitions.
[2024-11-23 23:31:18,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 597 transitions, 6050 flow
[2024-11-23 23:31:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-11-23 23:31:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2024-11-23 23:31:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 428 transitions.
[2024-11-23 23:31:18,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4930875576036866
[2024-11-23 23:31:18,821 INFO L175 Difference]: Start difference. First operand has 189 places, 370 transitions, 3774 flow. Second operand 14 states and 428 transitions.
[2024-11-23 23:31:18,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 597 transitions, 6050 flow
[2024-11-23 23:31:19,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 597 transitions, 5800 flow, removed 20 selfloop flow, removed 11 redundant places.
[2024-11-23 23:31:19,176 INFO L231 Difference]: Finished difference. Result has 192 places, 375 transitions, 4238 flow
[2024-11-23 23:31:19,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=3610, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=290, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4238, PETRI_PLACES=192, PETRI_TRANSITIONS=375}
[2024-11-23 23:31:19,176 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 134 predicate places.
[2024-11-23 23:31:19,176 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 375 transitions, 4238 flow
[2024-11-23 23:31:19,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.36842105263158) internal successors, (349), 19 states have internal predecessors, (349), 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)
[2024-11-23 23:31:19,177 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-23 23:31:19,177 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:31:19,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-23 23:31:19,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:31:19,378 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] ===
[2024-11-23 23:31:19,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:31:19,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2009012439, now seen corresponding path program 2 times
[2024-11-23 23:31:19,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:31:19,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447829602]
[2024-11-23 23:31:19,379 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 23:31:19,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:31:19,413 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-23 23:31:19,413 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:31:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:31:19,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:31:19,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447829602]
[2024-11-23 23:31:19,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447829602] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-23 23:31:19,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814693778]
[2024-11-23 23:31:19,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 23:31:19,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 23:31:19,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:31:19,485 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 23:31:19,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ec842b0-6017-42d6-9b23-ef35da5ed9d5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-23 23:31:19,594 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-23 23:31:19,594 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 23:31:19,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 23:31:19,597 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 23:31:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:31:19,651 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 23:31:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-23 23:31:19,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814693778] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 23:31:19,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-23 23:31:19,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4
[2024-11-23 23:31:19,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589834335]
[2024-11-23 23:31:19,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-23 23:31:19,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:31:19,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:31:19,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:31:19,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-23 23:31:19,714 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 62
[2024-11-23 23:31:19,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 375 transitions, 4238 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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)
[2024-11-23 23:31:19,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-23 23:31:19,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 62
[2024-11-23 23:31:19,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand