./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1 --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 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-01 13:16:51,924 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-01 13:16:51,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-12-01 13:16:51,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-01 13:16:51,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-01 13:16:52,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-01 13:16:52,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-01 13:16:52,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-01 13:16:52,005 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-01 13:16:52,005 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-01 13:16:52,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-01 13:16:52,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-01 13:16:52,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-01 13:16:52,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-01 13:16:52,006 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-01 13:16:52,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-01 13:16:52,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-01 13:16:52,007 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-01 13:16:52,008 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-01 13:16:52,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 13:16:52,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 13:16:52,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 13:16:52,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 13:16:52,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-01 13:16:52,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-01 13:16:52,008 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 13:16:52,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-01 13:16:52,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 13:16:52,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-01 13:16:52,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-01 13:16:52,009 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-01 13:16:52,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-01 13:16:52,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-01 13:16:52,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-01 13:16:52,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-01 13:16:52,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-01 13:16:52,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-01 13:16:52,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-01 13:16:52,009 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_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1
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 -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba
[2024-12-01 13:16:52,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-01 13:16:52,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-01 13:16:52,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-01 13:16:52,260 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-01 13:16:52,260 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-01 13:16:52,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i
[2024-12-01 13:16:54,909 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/data/4b2380e1f/2685e1d3a2644fdeaf5cb48b3b0c217e/FLAGa77c3bf8d
[2024-12-01 13:16:55,133 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-01 13:16:55,134 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i
[2024-12-01 13:16:55,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/data/4b2380e1f/2685e1d3a2644fdeaf5cb48b3b0c217e/FLAGa77c3bf8d
[2024-12-01 13:16:55,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/data/4b2380e1f/2685e1d3a2644fdeaf5cb48b3b0c217e
[2024-12-01 13:16:55,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-01 13:16:55,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-01 13:16:55,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-01 13:16:55,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-01 13:16:55,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-01 13:16:55,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9eac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55, skipping insertion in model container
[2024-12-01 13:16:55,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,203 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-01 13:16:55,530 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 13:16:55,562 INFO L200 MainTranslator]: Completed pre-run
[2024-12-01 13:16:55,613 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-01 13:16:55,670 INFO L204 MainTranslator]: Completed translation
[2024-12-01 13:16:55,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55 WrapperNode
[2024-12-01 13:16:55,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-01 13:16:55,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-01 13:16:55,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-01 13:16:55,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-01 13:16:55,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,716 INFO L138 Inliner]: procedures = 272, calls = 96, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 284
[2024-12-01 13:16:55,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-01 13:16:55,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-01 13:16:55,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-01 13:16:55,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-01 13:16:55,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,730 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,744 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [2, 5, 2, 70]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 0, 60]. The 5 writes are split as follows [0, 0, 1, 4].
[2024-12-01 13:16:55,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,755 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-01 13:16:55,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-01 13:16:55,768 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-01 13:16:55,768 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-01 13:16:55,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (1/1) ...
[2024-12-01 13:16:55,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 13:16:55,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:16:55,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-01 13:16:55,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-01 13:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-01 13:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-01 13:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-12-01 13:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-01 13:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-01 13:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-01 13:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-12-01 13:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-01 13:16:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2024-12-01 13:16:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-12-01 13:16:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-01 13:16:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-01 13:16:55,825 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-12-01 13:16:55,948 INFO L234 CfgBuilder]: Building ICFG
[2024-12-01 13:16:55,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-01 13:16:56,336 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-12-01 13:16:56,337 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-01 13:16:56,695 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-01 13:16:56,695 INFO L312 CfgBuilder]: Removed 15 assume(true) statements.
[2024-12-01 13:16:56,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:16:56 BoogieIcfgContainer
[2024-12-01 13:16:56,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-01 13:16:56,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-01 13:16:56,698 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-01 13:16:56,703 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-01 13:16:56,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:16:55" (1/3) ...
[2024-12-01 13:16:56,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc30b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:16:56, skipping insertion in model container
[2024-12-01 13:16:56,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:55" (2/3) ...
[2024-12-01 13:16:56,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc30b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:16:56, skipping insertion in model container
[2024-12-01 13:16:56,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:16:56" (3/3) ...
[2024-12-01 13:16:56,705 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i
[2024-12-01 13:16:56,721 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-01 13:16:56,723 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_70-funloop_racefree.i that has 2 procedures, 97 locations, 1 initial locations, 15 loop locations, and 18 error locations.
[2024-12-01 13:16:56,723 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-12-01 13:16:56,777 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-12-01 13:16:56,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 123 transitions, 253 flow
[2024-12-01 13:16:56,875 INFO L124 PetriNetUnfolderBase]: 38/176 cut-off events.
[2024-12-01 13:16:56,878 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-01 13:16:56,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 176 events. 38/176 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 729 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place.
[2024-12-01 13:16:56,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 123 transitions, 253 flow
[2024-12-01 13:16:56,888 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 122 transitions, 251 flow
[2024-12-01 13:16:56,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-01 13:16:56,909 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;@652a0753, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-01 13:16:56,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations.
[2024-12-01 13:16:56,916 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-01 13:16:56,916 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-12-01 13:16:56,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-01 13:16:56,916 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:16:56,917 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-01 13:16:56,917 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] ===
[2024-12-01 13:16:56,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:16:56,923 INFO L85 PathProgramCache]: Analyzing trace with hash 775769, now seen corresponding path program 1 times
[2024-12-01 13:16:56,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:16:56,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872651361]
[2024-12-01 13:16:56,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:16:56,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:16:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:16:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:16:57,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:16:57,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872651361]
[2024-12-01 13:16:57,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872651361] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:16:57,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:16:57,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 13:16:57,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649790005]
[2024-12-01 13:16:57,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:16:57,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 13:16:57,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:16:57,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 13:16:57,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 13:16:57,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123
[2024-12-01 13:16:57,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 122 transitions, 251 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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)
[2024-12-01 13:16:57,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:16:57,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123
[2024-12-01 13:16:57,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:16:57,701 INFO L124 PetriNetUnfolderBase]: 575/1803 cut-off events.
[2024-12-01 13:16:57,701 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-01 13:16:57,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2910 conditions, 1803 events. 575/1803 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12783 event pairs, 480 based on Foata normal form. 291/1823 useless extension candidates. Maximal degree in co-relation 2810. Up to 1100 conditions per place.
[2024-12-01 13:16:57,715 INFO L140 encePairwiseOnDemand]: 97/123 looper letters, 53 selfloop transitions, 3 changer transitions 0/104 dead transitions.
[2024-12-01 13:16:57,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 104 transitions, 327 flow
[2024-12-01 13:16:57,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-01 13:16:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-01 13:16:57,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 271 transitions.
[2024-12-01 13:16:57,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5508130081300813
[2024-12-01 13:16:57,730 INFO L175 Difference]: Start difference. First operand has 100 places, 122 transitions, 251 flow. Second operand 4 states and 271 transitions.
[2024-12-01 13:16:57,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 104 transitions, 327 flow
[2024-12-01 13:16:57,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 104 transitions, 327 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-01 13:16:57,740 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 235 flow
[2024-12-01 13:16:57,742 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=105, PETRI_TRANSITIONS=104}
[2024-12-01 13:16:57,746 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places.
[2024-12-01 13:16:57,746 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 235 flow
[2024-12-01 13:16:57,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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)
[2024-12-01 13:16:57,746 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:16:57,746 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2024-12-01 13:16:57,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-01 13:16:57,747 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] ===
[2024-12-01 13:16:57,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:16:57,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1636908164, now seen corresponding path program 1 times
[2024-12-01 13:16:57,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:16:57,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915970276]
[2024-12-01 13:16:57,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:16:57,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:16:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:16:57,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:16:57,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:16:57,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915970276]
[2024-12-01 13:16:57,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915970276] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 13:16:57,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356083725]
[2024-12-01 13:16:57,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:16:57,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:16:57,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:16:57,885 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 13:16:57,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-01 13:16:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:16:57,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-01 13:16:57,982 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:16:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:16:58,027 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 13:16:58,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356083725] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:16:58,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-01 13:16:58,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2024-12-01 13:16:58,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763714302]
[2024-12-01 13:16:58,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:16:58,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-01 13:16:58,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:16:58,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-01 13:16:58,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-12-01 13:16:58,041 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123
[2024-12-01 13:16:58,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 6 states have internal predecessors, (293), 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)
[2024-12-01 13:16:58,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:16:58,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123
[2024-12-01 13:16:58,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:16:58,402 INFO L124 PetriNetUnfolderBase]: 575/1802 cut-off events.
[2024-12-01 13:16:58,402 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2024-12-01 13:16:58,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 1802 events. 575/1802 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12743 event pairs, 480 based on Foata normal form. 1/1532 useless extension candidates. Maximal degree in co-relation 2902. Up to 1095 conditions per place.
[2024-12-01 13:16:58,410 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 49 selfloop transitions, 6 changer transitions 0/103 dead transitions.
[2024-12-01 13:16:58,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 103 transitions, 341 flow
[2024-12-01 13:16:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-01 13:16:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-01 13:16:58,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 344 transitions.
[2024-12-01 13:16:58,414 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46612466124661245
[2024-12-01 13:16:58,414 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 235 flow. Second operand 6 states and 344 transitions.
[2024-12-01 13:16:58,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 103 transitions, 341 flow
[2024-12-01 13:16:58,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 339 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-01 13:16:58,418 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 241 flow
[2024-12-01 13:16:58,418 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=108, PETRI_TRANSITIONS=103}
[2024-12-01 13:16:58,418 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places.
[2024-12-01 13:16:58,418 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 241 flow
[2024-12-01 13:16:58,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 6 states have internal predecessors, (293), 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)
[2024-12-01 13:16:58,419 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:16:58,419 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1]
[2024-12-01 13:16:58,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-01 13:16:58,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:16:58,620 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] ===
[2024-12-01 13:16:58,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:16:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash -795453652, now seen corresponding path program 1 times
[2024-12-01 13:16:58,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:16:58,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070226071]
[2024-12-01 13:16:58,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:16:58,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:16:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:16:58,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-01 13:16:58,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:16:58,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070226071]
[2024-12-01 13:16:58,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070226071] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:16:58,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:16:58,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 13:16:58,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559380847]
[2024-12-01 13:16:58,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:16:58,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-01 13:16:58,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:16:58,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-01 13:16:58,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-01 13:16:58,695 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123
[2024-12-01 13:16:58,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 241 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 13:16:58,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:16:58,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123
[2024-12-01 13:16:58,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:16:58,935 INFO L124 PetriNetUnfolderBase]: 575/1801 cut-off events.
[2024-12-01 13:16:58,935 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2024-12-01 13:16:58,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2922 conditions, 1801 events. 575/1801 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12732 event pairs, 480 based on Foata normal form. 1/1532 useless extension candidates. Maximal degree in co-relation 2898. Up to 1098 conditions per place.
[2024-12-01 13:16:58,942 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 50 selfloop transitions, 4 changer transitions 0/102 dead transitions.
[2024-12-01 13:16:58,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 102 transitions, 345 flow
[2024-12-01 13:16:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-01 13:16:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-01 13:16:58,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions.
[2024-12-01 13:16:58,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5338753387533876
[2024-12-01 13:16:58,944 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 241 flow. Second operand 3 states and 197 transitions.
[2024-12-01 13:16:58,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 102 transitions, 345 flow
[2024-12-01 13:16:58,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 323 flow, removed 3 selfloop flow, removed 6 redundant places.
[2024-12-01 13:16:58,946 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 223 flow
[2024-12-01 13:16:58,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=103, PETRI_TRANSITIONS=102}
[2024-12-01 13:16:58,947 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places.
[2024-12-01 13:16:58,948 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 223 flow
[2024-12-01 13:16:58,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-01 13:16:58,948 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:16:58,948 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:16:58,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-01 13:16:58,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] ===
[2024-12-01 13:16:58,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:16:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash 71792998, now seen corresponding path program 1 times
[2024-12-01 13:16:58,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:16:58,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378988851]
[2024-12-01 13:16:58,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:16:58,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:16:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:16:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:16:59,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:16:59,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378988851]
[2024-12-01 13:16:59,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378988851] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 13:16:59,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508717003]
[2024-12-01 13:16:59,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:16:59,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:16:59,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:16:59,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 13:16:59,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-01 13:16:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:16:59,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-01 13:16:59,125 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:16:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:16:59,145 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 13:16:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:16:59,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508717003] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 13:16:59,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-01 13:16:59,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9
[2024-12-01 13:16:59,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795215680]
[2024-12-01 13:16:59,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-01 13:16:59,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-01 13:16:59,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:16:59,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-01 13:16:59,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-12-01 13:16:59,197 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123
[2024-12-01 13:16:59,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 223 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 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)
[2024-12-01 13:16:59,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:16:59,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123
[2024-12-01 13:16:59,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:16:59,552 INFO L124 PetriNetUnfolderBase]: 575/1805 cut-off events.
[2024-12-01 13:16:59,552 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES.
[2024-12-01 13:16:59,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2925 conditions, 1805 events. 575/1805 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12760 event pairs, 480 based on Foata normal form. 2/1538 useless extension candidates. Maximal degree in co-relation 2891. Up to 1096 conditions per place.
[2024-12-01 13:16:59,560 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 50 selfloop transitions, 7 changer transitions 0/105 dead transitions.
[2024-12-01 13:16:59,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 105 transitions, 352 flow
[2024-12-01 13:16:59,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-01 13:16:59,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-12-01 13:16:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 395 transitions.
[2024-12-01 13:16:59,563 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45876887340301975
[2024-12-01 13:16:59,563 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 223 flow. Second operand 7 states and 395 transitions.
[2024-12-01 13:16:59,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 105 transitions, 352 flow
[2024-12-01 13:16:59,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 105 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-01 13:16:59,565 INFO L231 Difference]: Finished difference. Result has 109 places, 105 transitions, 249 flow
[2024-12-01 13:16:59,566 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=109, PETRI_TRANSITIONS=105}
[2024-12-01 13:16:59,566 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places.
[2024-12-01 13:16:59,566 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 105 transitions, 249 flow
[2024-12-01 13:16:59,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 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)
[2024-12-01 13:16:59,567 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:16:59,567 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:16:59,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-01 13:16:59,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:16:59,768 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] ===
[2024-12-01 13:16:59,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:16:59,768 INFO L85 PathProgramCache]: Analyzing trace with hash -606622330, now seen corresponding path program 2 times
[2024-12-01 13:16:59,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:16:59,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916534763]
[2024-12-01 13:16:59,769 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-01 13:16:59,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:16:59,785 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-01 13:16:59,785 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-01 13:16:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-01 13:16:59,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:16:59,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916534763]
[2024-12-01 13:16:59,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916534763] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:16:59,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:16:59,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-01 13:16:59,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886687699]
[2024-12-01 13:16:59,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:16:59,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 13:16:59,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:16:59,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 13:16:59,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 13:16:59,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 123
[2024-12-01 13:16:59,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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)
[2024-12-01 13:16:59,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:16:59,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 123
[2024-12-01 13:16:59,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:00,135 INFO L124 PetriNetUnfolderBase]: 595/1764 cut-off events.
[2024-12-01 13:17:00,135 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES.
[2024-12-01 13:17:00,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2921 conditions, 1764 events. 595/1764 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12366 event pairs, 138 based on Foata normal form. 21/1539 useless extension candidates. Maximal degree in co-relation 2882. Up to 1067 conditions per place.
[2024-12-01 13:17:00,140 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 98 selfloop transitions, 3 changer transitions 0/146 dead transitions.
[2024-12-01 13:17:00,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 146 transitions, 533 flow
[2024-12-01 13:17:00,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-01 13:17:00,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-01 13:17:00,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions.
[2024-12-01 13:17:00,142 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334
[2024-12-01 13:17:00,142 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 249 flow. Second operand 4 states and 287 transitions.
[2024-12-01 13:17:00,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 146 transitions, 533 flow
[2024-12-01 13:17:00,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 146 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-01 13:17:00,146 INFO L231 Difference]: Finished difference. Result has 109 places, 103 transitions, 251 flow
[2024-12-01 13:17:00,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=251, PETRI_PLACES=109, PETRI_TRANSITIONS=103}
[2024-12-01 13:17:00,147 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places.
[2024-12-01 13:17:00,147 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 103 transitions, 251 flow
[2024-12-01 13:17:00,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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)
[2024-12-01 13:17:00,147 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:00,147 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:17:00,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-01 13:17:00,147 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] ===
[2024-12-01 13:17:00,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:00,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1337401024, now seen corresponding path program 1 times
[2024-12-01 13:17:00,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:00,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084355281]
[2024-12-01 13:17:00,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:00,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:00,280 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:00,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:00,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084355281]
[2024-12-01 13:17:00,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084355281] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 13:17:00,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821944909]
[2024-12-01 13:17:00,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:00,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:17:00,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:17:00,282 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 13:17:00,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-01 13:17:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:00,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-01 13:17:00,378 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:17:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:00,412 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 13:17:00,490 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:00,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821944909] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 13:17:00,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-01 13:17:00,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17
[2024-12-01 13:17:00,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280732757]
[2024-12-01 13:17:00,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-01 13:17:00,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-12-01 13:17:00,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:00,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-12-01 13:17:00,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2024-12-01 13:17:00,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123
[2024-12-01 13:17:00,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 103 transitions, 251 flow. Second operand has 18 states, 18 states have (on average 49.22222222222222) internal successors, (886), 18 states have internal predecessors, (886), 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)
[2024-12-01 13:17:00,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:00,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123
[2024-12-01 13:17:00,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:00,871 INFO L124 PetriNetUnfolderBase]: 573/1752 cut-off events.
[2024-12-01 13:17:00,872 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES.
[2024-12-01 13:17:00,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2927 conditions, 1752 events. 573/1752 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12096 event pairs, 480 based on Foata normal form. 4/1513 useless extension candidates. Maximal degree in co-relation 2852. Up to 1075 conditions per place.
[2024-12-01 13:17:00,881 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 50 selfloop transitions, 15 changer transitions 0/111 dead transitions.
[2024-12-01 13:17:00,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 111 transitions, 429 flow
[2024-12-01 13:17:00,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-01 13:17:00,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2024-12-01 13:17:00,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 789 transitions.
[2024-12-01 13:17:00,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4276422764227642
[2024-12-01 13:17:00,885 INFO L175 Difference]: Start difference. First operand has 109 places, 103 transitions, 251 flow. Second operand 15 states and 789 transitions.
[2024-12-01 13:17:00,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 111 transitions, 429 flow
[2024-12-01 13:17:00,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 111 transitions, 423 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-01 13:17:00,888 INFO L231 Difference]: Finished difference. Result has 124 places, 111 transitions, 342 flow
[2024-12-01 13:17:00,888 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=342, PETRI_PLACES=124, PETRI_TRANSITIONS=111}
[2024-12-01 13:17:00,889 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 24 predicate places.
[2024-12-01 13:17:00,889 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 111 transitions, 342 flow
[2024-12-01 13:17:00,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 49.22222222222222) internal successors, (886), 18 states have internal predecessors, (886), 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)
[2024-12-01 13:17:00,890 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:00,890 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:17:00,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-01 13:17:01,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:17:01,090 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] ===
[2024-12-01 13:17:01,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1477219968, now seen corresponding path program 2 times
[2024-12-01 13:17:01,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:01,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078569365]
[2024-12-01 13:17:01,091 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-01 13:17:01,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:01,114 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-01 13:17:01,115 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-01 13:17:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:01,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:01,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078569365]
[2024-12-01 13:17:01,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078569365] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 13:17:01,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118252054]
[2024-12-01 13:17:01,367 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-01 13:17:01,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:17:01,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:17:01,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 13:17:01,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-01 13:17:01,463 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-01 13:17:01,463 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-01 13:17:01,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-12-01 13:17:01,466 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:17:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:01,537 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 13:17:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:01,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118252054] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 13:17:01,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-01 13:17:01,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22
[2024-12-01 13:17:01,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080854058]
[2024-12-01 13:17:01,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-01 13:17:01,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-12-01 13:17:01,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:01,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-12-01 13:17:01,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506
[2024-12-01 13:17:01,724 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123
[2024-12-01 13:17:01,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 111 transitions, 342 flow. Second operand has 23 states, 23 states have (on average 49.21739130434783) internal successors, (1132), 23 states have internal predecessors, (1132), 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)
[2024-12-01 13:17:01,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:01,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123
[2024-12-01 13:17:01,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:02,177 INFO L124 PetriNetUnfolderBase]: 573/1775 cut-off events.
[2024-12-01 13:17:02,177 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES.
[2024-12-01 13:17:02,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2981 conditions, 1775 events. 573/1775 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 12207 event pairs, 480 based on Foata normal form. 3/1535 useless extension candidates. Maximal degree in co-relation 2846. Up to 1074 conditions per place.
[2024-12-01 13:17:02,186 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 50 selfloop transitions, 21 changer transitions 0/117 dead transitions.
[2024-12-01 13:17:02,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 117 transitions, 538 flow
[2024-12-01 13:17:02,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-12-01 13:17:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2024-12-01 13:17:02,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1082 transitions.
[2024-12-01 13:17:02,190 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.418892760356175
[2024-12-01 13:17:02,190 INFO L175 Difference]: Start difference. First operand has 124 places, 111 transitions, 342 flow. Second operand 21 states and 1082 transitions.
[2024-12-01 13:17:02,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 117 transitions, 538 flow
[2024-12-01 13:17:02,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 117 transitions, 528 flow, removed 1 selfloop flow, removed 4 redundant places.
[2024-12-01 13:17:02,194 INFO L231 Difference]: Finished difference. Result has 143 places, 117 transitions, 443 flow
[2024-12-01 13:17:02,195 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=443, PETRI_PLACES=143, PETRI_TRANSITIONS=117}
[2024-12-01 13:17:02,195 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 43 predicate places.
[2024-12-01 13:17:02,196 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 117 transitions, 443 flow
[2024-12-01 13:17:02,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 49.21739130434783) internal successors, (1132), 23 states have internal predecessors, (1132), 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)
[2024-12-01 13:17:02,196 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:02,196 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:17:02,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-01 13:17:02,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:17:02,397 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] ===
[2024-12-01 13:17:02,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:02,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1689354645, now seen corresponding path program 3 times
[2024-12-01 13:17:02,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:02,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664346539]
[2024-12-01 13:17:02,398 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-01 13:17:02,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:02,464 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s)
[2024-12-01 13:17:02,464 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat
[2024-12-01 13:17:02,464 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-01 13:17:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-01 13:17:02,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-01 13:17:02,506 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-01 13:17:02,507 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining)
[2024-12-01 13:17:02,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining)
[2024-12-01 13:17:02,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining)
[2024-12-01 13:17:02,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining)
[2024-12-01 13:17:02,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-01 13:17:02,511 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1]
[2024-12-01 13:17:02,513 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-01 13:17:02,513 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-12-01 13:17:02,546 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-12-01 13:17:02,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 175 transitions, 366 flow
[2024-12-01 13:17:02,573 INFO L124 PetriNetUnfolderBase]: 64/300 cut-off events.
[2024-12-01 13:17:02,573 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2024-12-01 13:17:02,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 300 events. 64/300 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1517 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 178. Up to 12 conditions per place.
[2024-12-01 13:17:02,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 175 transitions, 366 flow
[2024-12-01 13:17:02,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 175 transitions, 366 flow
[2024-12-01 13:17:02,579 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-01 13:17:02,580 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;@652a0753, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-01 13:17:02,580 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations.
[2024-12-01 13:17:02,582 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-01 13:17:02,582 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-12-01 13:17:02,582 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-01 13:17:02,582 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:02,582 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-01 13:17:02,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:02,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:02,583 INFO L85 PathProgramCache]: Analyzing trace with hash 949544, now seen corresponding path program 1 times
[2024-12-01 13:17:02,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:02,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318841700]
[2024-12-01 13:17:02,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:02,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:02,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:02,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318841700]
[2024-12-01 13:17:02,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318841700] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:17:02,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:17:02,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 13:17:02,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383794069]
[2024-12-01 13:17:02,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:17:02,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 13:17:02,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:02,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 13:17:02,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 13:17:02,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175
[2024-12-01 13:17:02,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 175 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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)
[2024-12-01 13:17:02,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:02,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175
[2024-12-01 13:17:02,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:06,167 INFO L124 PetriNetUnfolderBase]: 24270/52769 cut-off events.
[2024-12-01 13:17:06,168 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES.
[2024-12-01 13:17:06,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88276 conditions, 52769 events. 24270/52769 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 1462. Compared 566806 event pairs, 21160 based on Foata normal form. 9793/54964 useless extension candidates. Maximal degree in co-relation 65647. Up to 35393 conditions per place.
[2024-12-01 13:17:06,374 INFO L140 encePairwiseOnDemand]: 139/175 looper letters, 77 selfloop transitions, 3 changer transitions 0/147 dead transitions.
[2024-12-01 13:17:06,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 147 transitions, 470 flow
[2024-12-01 13:17:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-01 13:17:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-01 13:17:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 381 transitions.
[2024-12-01 13:17:06,475 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5442857142857143
[2024-12-01 13:17:06,475 INFO L175 Difference]: Start difference. First operand has 141 places, 175 transitions, 366 flow. Second operand 4 states and 381 transitions.
[2024-12-01 13:17:06,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 147 transitions, 470 flow
[2024-12-01 13:17:06,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 147 transitions, 470 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-01 13:17:06,478 INFO L231 Difference]: Finished difference. Result has 146 places, 147 transitions, 330 flow
[2024-12-01 13:17:06,478 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=146, PETRI_TRANSITIONS=147}
[2024-12-01 13:17:06,478 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places.
[2024-12-01 13:17:06,478 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 147 transitions, 330 flow
[2024-12-01 13:17:06,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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)
[2024-12-01 13:17:06,479 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:06,479 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2024-12-01 13:17:06,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-01 13:17:06,479 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:06,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:06,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1775921628, now seen corresponding path program 1 times
[2024-12-01 13:17:06,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:06,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449307132]
[2024-12-01 13:17:06,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:06,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:06,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:06,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449307132]
[2024-12-01 13:17:06,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449307132] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 13:17:06,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393146966]
[2024-12-01 13:17:06,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:06,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:17:06,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:17:06,531 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 13:17:06,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-01 13:17:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:06,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-01 13:17:06,619 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:17:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:06,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-01 13:17:06,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393146966] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:17:06,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-01 13:17:06,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2024-12-01 13:17:06,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300122867]
[2024-12-01 13:17:06,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:17:06,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-01 13:17:06,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:06,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-01 13:17:06,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-12-01 13:17:06,653 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175
[2024-12-01 13:17:06,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 147 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 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)
[2024-12-01 13:17:06,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:06,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175
[2024-12-01 13:17:06,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:09,854 INFO L124 PetriNetUnfolderBase]: 24270/52768 cut-off events.
[2024-12-01 13:17:09,854 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES.
[2024-12-01 13:17:09,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88286 conditions, 52768 events. 24270/52768 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 1462. Compared 566900 event pairs, 21160 based on Foata normal form. 1/45171 useless extension candidates. Maximal degree in co-relation 88267. Up to 35388 conditions per place.
[2024-12-01 13:17:10,062 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 73 selfloop transitions, 6 changer transitions 0/146 dead transitions.
[2024-12-01 13:17:10,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 146 transitions, 484 flow
[2024-12-01 13:17:10,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-01 13:17:10,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-01 13:17:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 482 transitions.
[2024-12-01 13:17:10,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45904761904761904
[2024-12-01 13:17:10,065 INFO L175 Difference]: Start difference. First operand has 146 places, 147 transitions, 330 flow. Second operand 6 states and 482 transitions.
[2024-12-01 13:17:10,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 146 transitions, 484 flow
[2024-12-01 13:17:10,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 146 transitions, 482 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-01 13:17:10,068 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 336 flow
[2024-12-01 13:17:10,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=336, PETRI_PLACES=149, PETRI_TRANSITIONS=146}
[2024-12-01 13:17:10,069 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 8 predicate places.
[2024-12-01 13:17:10,069 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 336 flow
[2024-12-01 13:17:10,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 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)
[2024-12-01 13:17:10,070 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:10,070 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1]
[2024-12-01 13:17:10,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-12-01 13:17:10,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:17:10,271 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:10,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:10,271 INFO L85 PathProgramCache]: Analyzing trace with hash 781005371, now seen corresponding path program 1 times
[2024-12-01 13:17:10,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:10,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392678293]
[2024-12-01 13:17:10,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:10,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-01 13:17:10,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:10,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392678293]
[2024-12-01 13:17:10,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392678293] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:17:10,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:17:10,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 13:17:10,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130198798]
[2024-12-01 13:17:10,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:17:10,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-01 13:17:10,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:10,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-01 13:17:10,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-01 13:17:10,310 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175
[2024-12-01 13:17:10,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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)
[2024-12-01 13:17:10,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:10,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175
[2024-12-01 13:17:10,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:13,114 INFO L124 PetriNetUnfolderBase]: 24270/52767 cut-off events.
[2024-12-01 13:17:13,114 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES.
[2024-12-01 13:17:13,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88288 conditions, 52767 events. 24270/52767 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 1462. Compared 566777 event pairs, 21160 based on Foata normal form. 1/45171 useless extension candidates. Maximal degree in co-relation 88263. Up to 35391 conditions per place.
[2024-12-01 13:17:13,299 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 74 selfloop transitions, 4 changer transitions 0/145 dead transitions.
[2024-12-01 13:17:13,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 145 transitions, 488 flow
[2024-12-01 13:17:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-01 13:17:13,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-01 13:17:13,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions.
[2024-12-01 13:17:13,301 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5295238095238095
[2024-12-01 13:17:13,301 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 336 flow. Second operand 3 states and 278 transitions.
[2024-12-01 13:17:13,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 145 transitions, 488 flow
[2024-12-01 13:17:13,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 145 transitions, 466 flow, removed 3 selfloop flow, removed 6 redundant places.
[2024-12-01 13:17:13,304 INFO L231 Difference]: Finished difference. Result has 144 places, 145 transitions, 318 flow
[2024-12-01 13:17:13,304 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=144, PETRI_TRANSITIONS=145}
[2024-12-01 13:17:13,305 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 3 predicate places.
[2024-12-01 13:17:13,305 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 145 transitions, 318 flow
[2024-12-01 13:17:13,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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)
[2024-12-01 13:17:13,305 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:13,305 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:17:13,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-01 13:17:13,305 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:13,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:13,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1074487737, now seen corresponding path program 1 times
[2024-12-01 13:17:13,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:13,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833533329]
[2024-12-01 13:17:13,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:13,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:13,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:13,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833533329]
[2024-12-01 13:17:13,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833533329] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 13:17:13,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304169676]
[2024-12-01 13:17:13,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:13,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:17:13,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:17:13,362 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 13:17:13,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-01 13:17:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:13,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-01 13:17:13,458 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:17:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:13,475 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 13:17:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:13,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304169676] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 13:17:13,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-01 13:17:13,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9
[2024-12-01 13:17:13,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254962979]
[2024-12-01 13:17:13,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-01 13:17:13,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-01 13:17:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:13,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-01 13:17:13,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-12-01 13:17:13,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175
[2024-12-01 13:17:13,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 145 transitions, 318 flow. Second operand has 10 states, 10 states have (on average 68.3) internal successors, (683), 10 states have internal predecessors, (683), 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)
[2024-12-01 13:17:13,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:13,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175
[2024-12-01 13:17:13,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:17,101 INFO L124 PetriNetUnfolderBase]: 24270/52771 cut-off events.
[2024-12-01 13:17:17,102 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES.
[2024-12-01 13:17:17,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88291 conditions, 52771 events. 24270/52771 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 1462. Compared 566652 event pairs, 21160 based on Foata normal form. 2/45177 useless extension candidates. Maximal degree in co-relation 88256. Up to 35389 conditions per place.
[2024-12-01 13:17:17,280 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 74 selfloop transitions, 7 changer transitions 0/148 dead transitions.
[2024-12-01 13:17:17,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 148 transitions, 495 flow
[2024-12-01 13:17:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-01 13:17:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-12-01 13:17:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 552 transitions.
[2024-12-01 13:17:17,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4506122448979592
[2024-12-01 13:17:17,282 INFO L175 Difference]: Start difference. First operand has 144 places, 145 transitions, 318 flow. Second operand 7 states and 552 transitions.
[2024-12-01 13:17:17,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 148 transitions, 495 flow
[2024-12-01 13:17:17,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 148 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-01 13:17:17,285 INFO L231 Difference]: Finished difference. Result has 150 places, 148 transitions, 344 flow
[2024-12-01 13:17:17,285 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=344, PETRI_PLACES=150, PETRI_TRANSITIONS=148}
[2024-12-01 13:17:17,286 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places.
[2024-12-01 13:17:17,286 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 148 transitions, 344 flow
[2024-12-01 13:17:17,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.3) internal successors, (683), 10 states have internal predecessors, (683), 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)
[2024-12-01 13:17:17,287 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:17,287 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:17:17,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-01 13:17:17,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2024-12-01 13:17:17,487 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:17,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:17,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2141932743, now seen corresponding path program 2 times
[2024-12-01 13:17:17,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:17,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702941939]
[2024-12-01 13:17:17,488 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-01 13:17:17,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:17,499 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-01 13:17:17,499 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-01 13:17:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-01 13:17:17,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:17,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702941939]
[2024-12-01 13:17:17,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702941939] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:17:17,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:17:17,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-01 13:17:17,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525322650]
[2024-12-01 13:17:17,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:17:17,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 13:17:17,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:17,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 13:17:17,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 13:17:17,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 175
[2024-12-01 13:17:17,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 148 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 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)
[2024-12-01 13:17:17,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:17,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 175
[2024-12-01 13:17:17,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:20,559 INFO L124 PetriNetUnfolderBase]: 26447/54738 cut-off events.
[2024-12-01 13:17:20,560 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES.
[2024-12-01 13:17:20,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93631 conditions, 54738 events. 26447/54738 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 1465. Compared 570907 event pairs, 11420 based on Foata normal form. 21/47111 useless extension candidates. Maximal degree in co-relation 93591. Up to 38696 conditions per place.
[2024-12-01 13:17:20,943 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 126 selfloop transitions, 3 changer transitions 0/193 dead transitions.
[2024-12-01 13:17:20,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 193 transitions, 692 flow
[2024-12-01 13:17:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-01 13:17:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-01 13:17:20,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions.
[2024-12-01 13:17:20,945 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5585714285714286
[2024-12-01 13:17:20,945 INFO L175 Difference]: Start difference. First operand has 150 places, 148 transitions, 344 flow. Second operand 4 states and 391 transitions.
[2024-12-01 13:17:20,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 193 transitions, 692 flow
[2024-12-01 13:17:20,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 193 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-01 13:17:20,950 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 364 flow
[2024-12-01 13:17:20,950 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=364, PETRI_PLACES=153, PETRI_TRANSITIONS=150}
[2024-12-01 13:17:20,950 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 12 predicate places.
[2024-12-01 13:17:20,951 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 364 flow
[2024-12-01 13:17:20,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 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)
[2024-12-01 13:17:20,951 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:20,951 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:17:20,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-01 13:17:20,951 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:20,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:20,952 INFO L85 PathProgramCache]: Analyzing trace with hash -773677661, now seen corresponding path program 1 times
[2024-12-01 13:17:20,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:20,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683673000]
[2024-12-01 13:17:20,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:20,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:21,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683673000]
[2024-12-01 13:17:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683673000] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 13:17:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682092066]
[2024-12-01 13:17:21,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:21,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:17:21,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:17:21,086 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 13:17:21,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-01 13:17:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:21,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-01 13:17:21,189 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:17:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:21,217 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 13:17:21,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:21,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682092066] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 13:17:21,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-01 13:17:21,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17
[2024-12-01 13:17:21,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482258577]
[2024-12-01 13:17:21,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-01 13:17:21,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-12-01 13:17:21,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:21,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-12-01 13:17:21,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2024-12-01 13:17:21,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175
[2024-12-01 13:17:21,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 364 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 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)
[2024-12-01 13:17:21,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:21,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175
[2024-12-01 13:17:21,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:25,294 INFO L124 PetriNetUnfolderBase]: 24267/53404 cut-off events.
[2024-12-01 13:17:25,295 INFO L125 PetriNetUnfolderBase]: For 1130/1988 co-relation queries the response was YES.
[2024-12-01 13:17:25,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89879 conditions, 53404 events. 24267/53404 cut-off events. For 1130/1988 co-relation queries the response was YES. Maximal size of possible extension queue 1468. Compared 578365 event pairs, 21160 based on Foata normal form. 23/46152 useless extension candidates. Maximal degree in co-relation 89802. Up to 35346 conditions per place.
[2024-12-01 13:17:25,511 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 75 selfloop transitions, 15 changer transitions 0/158 dead transitions.
[2024-12-01 13:17:25,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 158 transitions, 592 flow
[2024-12-01 13:17:25,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-01 13:17:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2024-12-01 13:17:25,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1098 transitions.
[2024-12-01 13:17:25,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41828571428571426
[2024-12-01 13:17:25,515 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 364 flow. Second operand 15 states and 1098 transitions.
[2024-12-01 13:17:25,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 158 transitions, 592 flow
[2024-12-01 13:17:25,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 158 transitions, 590 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-01 13:17:25,523 INFO L231 Difference]: Finished difference. Result has 170 places, 158 transitions, 459 flow
[2024-12-01 13:17:25,524 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=459, PETRI_PLACES=170, PETRI_TRANSITIONS=158}
[2024-12-01 13:17:25,524 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 29 predicate places.
[2024-12-01 13:17:25,524 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 158 transitions, 459 flow
[2024-12-01 13:17:25,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 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)
[2024-12-01 13:17:25,525 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:25,525 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:17:25,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-01 13:17:25,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-12-01 13:17:25,726 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:25,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:25,726 INFO L85 PathProgramCache]: Analyzing trace with hash 793903267, now seen corresponding path program 2 times
[2024-12-01 13:17:25,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:25,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413091815]
[2024-12-01 13:17:25,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-01 13:17:25,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:25,738 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-01 13:17:25,738 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-01 13:17:25,783 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-12-01 13:17:25,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:25,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413091815]
[2024-12-01 13:17:25,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413091815] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:17:25,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:17:25,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-01 13:17:25,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189793499]
[2024-12-01 13:17:25,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:17:25,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-01 13:17:25,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:25,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-01 13:17:25,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-12-01 13:17:25,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 175
[2024-12-01 13:17:25,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 158 transitions, 459 flow. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 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)
[2024-12-01 13:17:25,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:25,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 175
[2024-12-01 13:17:25,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:29,670 INFO L124 PetriNetUnfolderBase]: 25060/47884 cut-off events.
[2024-12-01 13:17:29,670 INFO L125 PetriNetUnfolderBase]: For 1529/1529 co-relation queries the response was YES.
[2024-12-01 13:17:29,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87026 conditions, 47884 events. 25060/47884 cut-off events. For 1529/1529 co-relation queries the response was YES. Maximal size of possible extension queue 1272. Compared 465360 event pairs, 968 based on Foata normal form. 441/42306 useless extension candidates. Maximal degree in co-relation 86925. Up to 30767 conditions per place.
[2024-12-01 13:17:29,947 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 214 selfloop transitions, 6 changer transitions 0/284 dead transitions.
[2024-12-01 13:17:29,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 284 transitions, 1149 flow
[2024-12-01 13:17:30,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-01 13:17:30,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-01 13:17:30,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 604 transitions.
[2024-12-01 13:17:30,123 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5752380952380952
[2024-12-01 13:17:30,123 INFO L175 Difference]: Start difference. First operand has 170 places, 158 transitions, 459 flow. Second operand 6 states and 604 transitions.
[2024-12-01 13:17:30,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 284 transitions, 1149 flow
[2024-12-01 13:17:30,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 284 transitions, 1139 flow, removed 1 selfloop flow, removed 4 redundant places.
[2024-12-01 13:17:30,126 INFO L231 Difference]: Finished difference. Result has 170 places, 157 transitions, 457 flow
[2024-12-01 13:17:30,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=457, PETRI_PLACES=170, PETRI_TRANSITIONS=157}
[2024-12-01 13:17:30,127 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 29 predicate places.
[2024-12-01 13:17:30,127 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 157 transitions, 457 flow
[2024-12-01 13:17:30,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 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)
[2024-12-01 13:17:30,127 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:30,127 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-12-01 13:17:30,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-01 13:17:30,128 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:30,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:30,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1158801462, now seen corresponding path program 1 times
[2024-12-01 13:17:30,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:30,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5084685]
[2024-12-01 13:17:30,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:30,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-12-01 13:17:30,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:30,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5084685]
[2024-12-01 13:17:30,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5084685] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:17:30,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:17:30,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-01 13:17:30,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011839838]
[2024-12-01 13:17:30,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:17:30,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 13:17:30,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:30,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 13:17:30,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 13:17:30,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 175
[2024-12-01 13:17:30,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 157 transitions, 457 flow. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 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)
[2024-12-01 13:17:30,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:30,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 175
[2024-12-01 13:17:30,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:33,206 INFO L124 PetriNetUnfolderBase]: 24198/46455 cut-off events.
[2024-12-01 13:17:33,206 INFO L125 PetriNetUnfolderBase]: For 3446/3446 co-relation queries the response was YES.
[2024-12-01 13:17:33,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85227 conditions, 46455 events. 24198/46455 cut-off events. For 3446/3446 co-relation queries the response was YES. Maximal size of possible extension queue 1244. Compared 450582 event pairs, 907 based on Foata normal form. 441/41496 useless extension candidates. Maximal degree in co-relation 85130. Up to 32110 conditions per place.
[2024-12-01 13:17:33,656 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 171 selfloop transitions, 6 changer transitions 0/241 dead transitions.
[2024-12-01 13:17:33,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 241 transitions, 977 flow
[2024-12-01 13:17:33,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-01 13:17:33,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-01 13:17:33,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions.
[2024-12-01 13:17:33,658 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.61
[2024-12-01 13:17:33,658 INFO L175 Difference]: Start difference. First operand has 170 places, 157 transitions, 457 flow. Second operand 4 states and 427 transitions.
[2024-12-01 13:17:33,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 241 transitions, 977 flow
[2024-12-01 13:17:33,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 241 transitions, 961 flow, removed 3 selfloop flow, removed 5 redundant places.
[2024-12-01 13:17:33,670 INFO L231 Difference]: Finished difference. Result has 168 places, 157 transitions, 457 flow
[2024-12-01 13:17:33,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=457, PETRI_PLACES=168, PETRI_TRANSITIONS=157}
[2024-12-01 13:17:33,670 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 27 predicate places.
[2024-12-01 13:17:33,670 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 157 transitions, 457 flow
[2024-12-01 13:17:33,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 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)
[2024-12-01 13:17:33,671 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:33,671 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 3, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-12-01 13:17:33,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-01 13:17:33,671 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:33,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1211645564, now seen corresponding path program 1 times
[2024-12-01 13:17:33,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:33,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12967317]
[2024-12-01 13:17:33,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:33,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:33,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:33,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12967317]
[2024-12-01 13:17:33,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12967317] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-01 13:17:33,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205266036]
[2024-12-01 13:17:33,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:33,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-01 13:17:33,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 13:17:33,905 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-01 13:17:33,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-01 13:17:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:34,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-12-01 13:17:34,015 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-01 13:17:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:34,065 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-01 13:17:34,198 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:34,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205266036] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-01 13:17:34,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-01 13:17:34,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22
[2024-12-01 13:17:34,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945160464]
[2024-12-01 13:17:34,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-01 13:17:34,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-12-01 13:17:34,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:34,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-12-01 13:17:34,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506
[2024-12-01 13:17:34,217 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175
[2024-12-01 13:17:34,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 157 transitions, 457 flow. Second operand has 23 states, 23 states have (on average 68.26086956521739) internal successors, (1570), 23 states have internal predecessors, (1570), 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)
[2024-12-01 13:17:34,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:34,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175
[2024-12-01 13:17:34,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-01 13:17:38,388 INFO L124 PetriNetUnfolderBase]: 24267/53400 cut-off events.
[2024-12-01 13:17:38,388 INFO L125 PetriNetUnfolderBase]: For 3965/3965 co-relation queries the response was YES.
[2024-12-01 13:17:38,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90824 conditions, 53400 events. 24267/53400 cut-off events. For 3965/3965 co-relation queries the response was YES. Maximal size of possible extension queue 1450. Compared 578029 event pairs, 21160 based on Foata normal form. 3/46126 useless extension candidates. Maximal degree in co-relation 90693. Up to 35346 conditions per place.
[2024-12-01 13:17:38,620 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 76 selfloop transitions, 21 changer transitions 0/163 dead transitions.
[2024-12-01 13:17:38,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 163 transitions, 705 flow
[2024-12-01 13:17:38,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-12-01 13:17:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2024-12-01 13:17:38,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1505 transitions.
[2024-12-01 13:17:38,623 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4095238095238095
[2024-12-01 13:17:38,623 INFO L175 Difference]: Start difference. First operand has 168 places, 157 transitions, 457 flow. Second operand 21 states and 1505 transitions.
[2024-12-01 13:17:38,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 163 transitions, 705 flow
[2024-12-01 13:17:38,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 163 transitions, 697 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-01 13:17:38,627 INFO L231 Difference]: Finished difference. Result has 189 places, 163 transitions, 560 flow
[2024-12-01 13:17:38,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=560, PETRI_PLACES=189, PETRI_TRANSITIONS=163}
[2024-12-01 13:17:38,628 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 48 predicate places.
[2024-12-01 13:17:38,628 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 163 transitions, 560 flow
[2024-12-01 13:17:38,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 68.26086956521739) internal successors, (1570), 23 states have internal predecessors, (1570), 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)
[2024-12-01 13:17:38,628 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:38,628 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 3, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-12-01 13:17:38,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-01 13:17:38,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2215cdd-176a-4e0e-8077-d40e157d94a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-12-01 13:17:38,829 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] ===
[2024-12-01 13:17:38,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:38,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1562260480, now seen corresponding path program 2 times
[2024-12-01 13:17:38,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:38,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162625703]
[2024-12-01 13:17:38,829 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-01 13:17:38,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:38,850 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-01 13:17:38,850 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat
[2024-12-01 13:17:38,850 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-01 13:17:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-01 13:17:38,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-01 13:17:38,874 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-01 13:17:38,874 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining)
[2024-12-01 13:17:38,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining)
[2024-12-01 13:17:38,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining)
[2024-12-01 13:17:38,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining)
[2024-12-01 13:17:38,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining)
[2024-12-01 13:17:38,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining)
[2024-12-01 13:17:38,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining)
[2024-12-01 13:17:38,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining)
[2024-12-01 13:17:38,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining)
[2024-12-01 13:17:38,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining)
[2024-12-01 13:17:38,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining)
[2024-12-01 13:17:38,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining)
[2024-12-01 13:17:38,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining)
[2024-12-01 13:17:38,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining)
[2024-12-01 13:17:38,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining)
[2024-12-01 13:17:38,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-12-01 13:17:38,876 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1]
[2024-12-01 13:17:38,877 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-01 13:17:38,877 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-12-01 13:17:38,909 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-12-01 13:17:38,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 227 transitions, 481 flow
[2024-12-01 13:17:38,951 INFO L124 PetriNetUnfolderBase]: 93/443 cut-off events.
[2024-12-01 13:17:38,951 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES.
[2024-12-01 13:17:38,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 443 events. 93/443 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2391 event pairs, 1 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 309. Up to 16 conditions per place.
[2024-12-01 13:17:38,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 227 transitions, 481 flow
[2024-12-01 13:17:38,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 227 transitions, 481 flow
[2024-12-01 13:17:38,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-01 13:17:38,961 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;@652a0753, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-01 13:17:38,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations.
[2024-12-01 13:17:38,963 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-01 13:17:38,963 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-12-01 13:17:38,963 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-01 13:17:38,963 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-01 13:17:38,963 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-01 13:17:38,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] ===
[2024-12-01 13:17:38,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 13:17:38,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1174955, now seen corresponding path program 1 times
[2024-12-01 13:17:38,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 13:17:38,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141080756]
[2024-12-01 13:17:38,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 13:17:38,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 13:17:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 13:17:38,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 13:17:38,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 13:17:38,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141080756]
[2024-12-01 13:17:38,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141080756] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 13:17:38,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 13:17:38,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-01 13:17:38,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336958970]
[2024-12-01 13:17:38,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 13:17:38,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 13:17:38,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 13:17:38,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 13:17:38,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 13:17:38,999 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 227
[2024-12-01 13:17:38,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 227 transitions, 481 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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)
[2024-12-01 13:17:38,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-01 13:17:38,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 227
[2024-12-01 13:17:38,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand