./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:26:43,386 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:26:43,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-24 01:26:43,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:26:43,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:26:43,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:26:43,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:26:43,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:26:43,533 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:26:43,533 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:26:43,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:26:43,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:26:43,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:26:43,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:26:43,534 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:26:43,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:26:43,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 01:26:43,535 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 01:26:43,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:26:43,536 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 01:26:43,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:26:43,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 01:26:43,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:26:43,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 01:26:43,537 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-24 01:26:43,537 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 01:26:43,537 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 01:26:43,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 01:26:43,537 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:26:43,537 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:26:43,537 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:26:43,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:26:43,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:26:43,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:26:43,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:26:43,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:26:43,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:26:43,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:26:43,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:26:43,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:26:43,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:26:43,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:26:43,539 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 01:26:43,539 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 01:26:43,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 01:26:43,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 01:26:43,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:26:43,539 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:26:43,539 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:26:43,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:26:43,540 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_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198
[2024-11-24 01:26:43,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:26:43,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:26:43,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:26:43,942 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:26:43,942 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:26:43,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c
[2024-11-24 01:26:47,623 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/data/15ea84c72/391f53303bd34fa7bcba21ada164840d/FLAG6c14ee7fd
[2024-11-24 01:26:48,024 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:26:48,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/sv-benchmarks/c/weaver/chl-word-subst.wvr.c
[2024-11-24 01:26:48,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/data/15ea84c72/391f53303bd34fa7bcba21ada164840d/FLAG6c14ee7fd
[2024-11-24 01:26:48,057 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/data/15ea84c72/391f53303bd34fa7bcba21ada164840d
[2024-11-24 01:26:48,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:26:48,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:26:48,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:26:48,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:26:48,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:26:48,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d5b229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48, skipping insertion in model container
[2024-11-24 01:26:48,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,096 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:26:48,397 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:26:48,414 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:26:48,449 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:26:48,470 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:26:48,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48 WrapperNode
[2024-11-24 01:26:48,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:26:48,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:26:48,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:26:48,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:26:48,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,530 INFO L138 Inliner]: procedures = 24, calls = 31, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 174
[2024-11-24 01:26:48,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:26:48,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:26:48,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:26:48,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:26:48,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,591 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3].
[2024-11-24 01:26:48,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,611 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:26:48,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:26:48,639 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:26:48,639 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:26:48,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (1/1) ...
[2024-11-24 01:26:48,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:26:48,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:26:48,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:26:48,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:26:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 01:26:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-24 01:26:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-24 01:26:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-24 01:26:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-24 01:26:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2024-11-24 01:26:48,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2024-11-24 01:26:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 01:26:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-24 01:26:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-24 01:26:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-24 01:26:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-24 01:26:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:26:48,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:26:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-24 01:26:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-24 01:26:48,728 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-24 01:26:48,892 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:26:48,896 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:26:49,754 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-24 01:26:49,754 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:26:50,262 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:26:50,262 INFO L312 CfgBuilder]: Removed 6 assume(true) statements.
[2024-11-24 01:26:50,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:26:50 BoogieIcfgContainer
[2024-11-24 01:26:50,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:26:50,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:26:50,269 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:26:50,275 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:26:50,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:26:48" (1/3) ...
[2024-11-24 01:26:50,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe69dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:26:50, skipping insertion in model container
[2024-11-24 01:26:50,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:26:48" (2/3) ...
[2024-11-24 01:26:50,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe69dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:26:50, skipping insertion in model container
[2024-11-24 01:26:50,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:26:50" (3/3) ...
[2024-11-24 01:26:50,280 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c
[2024-11-24 01:26:50,301 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:26:50,303 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-word-subst.wvr.c that has 4 procedures, 75 locations, 1 initial locations, 6 loop locations, and 18 error locations.
[2024-11-24 01:26:50,303 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-24 01:26:50,417 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-11-24 01:26:50,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 89 transitions, 199 flow
[2024-11-24 01:26:50,558 INFO L124 PetriNetUnfolderBase]: 15/86 cut-off events.
[2024-11-24 01:26:50,560 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2024-11-24 01:26:50,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 15/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 248 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place.
[2024-11-24 01:26:50,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 89 transitions, 199 flow
[2024-11-24 01:26:50,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 84 transitions, 183 flow
[2024-11-24 01:26:50,588 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:26:50,608 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;@6c7ccf9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:26:50,608 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations.
[2024-11-24 01:26:50,616 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-24 01:26:50,616 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-11-24 01:26:50,616 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-24 01:26:50,616 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:26:50,617 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-11-24 01:26:50,618 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:26:50,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:26:50,625 INFO L85 PathProgramCache]: Analyzing trace with hash 801649, now seen corresponding path program 1 times
[2024-11-24 01:26:50,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:26:50,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461911214]
[2024-11-24 01:26:50,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:26:50,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:26:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:26:51,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:26:51,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:26:51,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461911214]
[2024-11-24 01:26:51,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461911214] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:26:51,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:26:51,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:26:51,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237738071]
[2024-11-24 01:26:51,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:26:51,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:26:51,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:26:51,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:26:51,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:26:51,110 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89
[2024-11-24 01:26:51,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 84 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:26:51,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:26:51,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89
[2024-11-24 01:26:51,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:26:52,754 INFO L124 PetriNetUnfolderBase]: 4024/6853 cut-off events.
[2024-11-24 01:26:52,755 INFO L125 PetriNetUnfolderBase]: For 251/251 co-relation queries the response was YES.
[2024-11-24 01:26:52,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12168 conditions, 6853 events. 4024/6853 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 46042 event pairs, 2534 based on Foata normal form. 3/4741 useless extension candidates. Maximal degree in co-relation 11574. Up to 5081 conditions per place.
[2024-11-24 01:26:52,833 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 43 selfloop transitions, 8 changer transitions 0/81 dead transitions.
[2024-11-24 01:26:52,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 81 transitions, 279 flow
[2024-11-24 01:26:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:26:52,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 01:26:52,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 186 transitions.
[2024-11-24 01:26:52,856 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5224719101123596
[2024-11-24 01:26:52,859 INFO L175 Difference]: Start difference. First operand has 79 places, 84 transitions, 183 flow. Second operand 4 states and 186 transitions.
[2024-11-24 01:26:52,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 81 transitions, 279 flow
[2024-11-24 01:26:52,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 270 flow, removed 0 selfloop flow, removed 5 redundant places.
[2024-11-24 01:26:52,876 INFO L231 Difference]: Finished difference. Result has 74 places, 81 transitions, 184 flow
[2024-11-24 01:26:52,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=74, PETRI_TRANSITIONS=81}
[2024-11-24 01:26:52,884 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, -5 predicate places.
[2024-11-24 01:26:52,884 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 81 transitions, 184 flow
[2024-11-24 01:26:52,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:26:52,885 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:26:52,885 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:26:52,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 01:26:52,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:26:52,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:26:52,887 INFO L85 PathProgramCache]: Analyzing trace with hash 24851921, now seen corresponding path program 1 times
[2024-11-24 01:26:52,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:26:52,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164179996]
[2024-11-24 01:26:52,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:26:52,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:26:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:26:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:26:53,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:26:53,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164179996]
[2024-11-24 01:26:53,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164179996] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:26:53,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:26:53,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:26:53,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217207366]
[2024-11-24 01:26:53,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:26:53,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:26:53,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:26:53,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:26:53,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:26:53,073 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89
[2024-11-24 01:26:53,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 81 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:26:53,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:26:53,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89
[2024-11-24 01:26:53,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:26:54,109 INFO L124 PetriNetUnfolderBase]: 4027/6865 cut-off events.
[2024-11-24 01:26:54,110 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES.
[2024-11-24 01:26:54,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12121 conditions, 6865 events. 4027/6865 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 46095 event pairs, 2534 based on Foata normal form. 3/4757 useless extension candidates. Maximal degree in co-relation 12053. Up to 5094 conditions per place.
[2024-11-24 01:26:54,183 INFO L140 encePairwiseOnDemand]: 76/89 looper letters, 50 selfloop transitions, 10 changer transitions 0/90 dead transitions.
[2024-11-24 01:26:54,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 90 transitions, 336 flow
[2024-11-24 01:26:54,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:26:54,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 01:26:54,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 195 transitions.
[2024-11-24 01:26:54,188 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.547752808988764
[2024-11-24 01:26:54,190 INFO L175 Difference]: Start difference. First operand has 74 places, 81 transitions, 184 flow. Second operand 4 states and 195 transitions.
[2024-11-24 01:26:54,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 90 transitions, 336 flow
[2024-11-24 01:26:54,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 90 transitions, 306 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-24 01:26:54,196 INFO L231 Difference]: Finished difference. Result has 77 places, 90 transitions, 250 flow
[2024-11-24 01:26:54,197 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=77, PETRI_TRANSITIONS=90}
[2024-11-24 01:26:54,198 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, -2 predicate places.
[2024-11-24 01:26:54,199 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 90 transitions, 250 flow
[2024-11-24 01:26:54,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:26:54,199 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:26:54,200 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1]
[2024-11-24 01:26:54,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 01:26:54,200 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:26:54,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:26:54,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1629984392, now seen corresponding path program 1 times
[2024-11-24 01:26:54,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:26:54,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116980186]
[2024-11-24 01:26:54,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:26:54,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:26:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:26:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:26:54,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:26:54,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116980186]
[2024-11-24 01:26:54,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116980186] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:26:54,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354051899]
[2024-11-24 01:26:54,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:26:54,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:26:54,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:26:54,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:26:54,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 01:26:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:26:54,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:26:54,537 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:26:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:26:54,591 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 01:26:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:26:54,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354051899] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 01:26:54,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 01:26:54,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8
[2024-11-24 01:26:54,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309059921]
[2024-11-24 01:26:54,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 01:26:54,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-24 01:26:54,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:26:54,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-24 01:26:54,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2024-11-24 01:26:54,749 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89
[2024-11-24 01:26:54,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 90 transitions, 250 flow. Second operand has 10 states, 10 states have (on average 34.0) internal successors, (340), 10 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:26:54,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:26:54,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89
[2024-11-24 01:26:54,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:26:55,825 INFO L124 PetriNetUnfolderBase]: 4036/6901 cut-off events.
[2024-11-24 01:26:55,826 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES.
[2024-11-24 01:26:55,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12236 conditions, 6901 events. 4036/6901 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 46502 event pairs, 2534 based on Foata normal form. 0/4785 useless extension candidates. Maximal degree in co-relation 12067. Up to 5097 conditions per place.
[2024-11-24 01:26:55,882 INFO L140 encePairwiseOnDemand]: 76/89 looper letters, 50 selfloop transitions, 37 changer transitions 0/117 dead transitions.
[2024-11-24 01:26:55,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 117 transitions, 544 flow
[2024-11-24 01:26:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-24 01:26:55,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-11-24 01:26:55,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 426 transitions.
[2024-11-24 01:26:55,892 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4786516853932584
[2024-11-24 01:26:55,893 INFO L175 Difference]: Start difference. First operand has 77 places, 90 transitions, 250 flow. Second operand 10 states and 426 transitions.
[2024-11-24 01:26:55,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 117 transitions, 544 flow
[2024-11-24 01:26:55,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 117 transitions, 544 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-24 01:26:55,899 INFO L231 Difference]: Finished difference. Result has 89 places, 117 transitions, 494 flow
[2024-11-24 01:26:55,899 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=494, PETRI_PLACES=89, PETRI_TRANSITIONS=117}
[2024-11-24 01:26:55,901 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places.
[2024-11-24 01:26:55,901 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 117 transitions, 494 flow
[2024-11-24 01:26:55,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.0) internal successors, (340), 10 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:26:55,902 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:26:55,902 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:26:55,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-24 01:26:56,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:26:56,107 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:26:56,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:26:56,108 INFO L85 PathProgramCache]: Analyzing trace with hash -899932568, now seen corresponding path program 1 times
[2024-11-24 01:26:56,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:26:56,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669484205]
[2024-11-24 01:26:56,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:26:56,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:26:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:26:56,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:26:56,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:26:56,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669484205]
[2024-11-24 01:26:56,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669484205] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:26:56,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:26:56,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:26:56,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100149255]
[2024-11-24 01:26:56,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:26:56,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:26:56,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:26:56,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:26:56,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:26:56,428 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 89
[2024-11-24 01:26:56,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 117 transitions, 494 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:26:56,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:26:56,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 89
[2024-11-24 01:26:56,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:26:57,951 INFO L124 PetriNetUnfolderBase]: 7235/11074 cut-off events.
[2024-11-24 01:26:57,951 INFO L125 PetriNetUnfolderBase]: For 150/150 co-relation queries the response was YES.
[2024-11-24 01:26:58,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20859 conditions, 11074 events. 7235/11074 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 66695 event pairs, 3494 based on Foata normal form. 146/7982 useless extension candidates. Maximal degree in co-relation 20764. Up to 6976 conditions per place.
[2024-11-24 01:26:58,174 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 139 selfloop transitions, 4 changer transitions 0/173 dead transitions.
[2024-11-24 01:26:58,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 173 transitions, 898 flow
[2024-11-24 01:26:58,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:26:58,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 01:26:58,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions.
[2024-11-24 01:26:58,177 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7106741573033708
[2024-11-24 01:26:58,178 INFO L175 Difference]: Start difference. First operand has 89 places, 117 transitions, 494 flow. Second operand 4 states and 253 transitions.
[2024-11-24 01:26:58,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 173 transitions, 898 flow
[2024-11-24 01:26:58,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 173 transitions, 803 flow, removed 25 selfloop flow, removed 4 redundant places.
[2024-11-24 01:26:58,190 INFO L231 Difference]: Finished difference. Result has 90 places, 120 transitions, 428 flow
[2024-11-24 01:26:58,193 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=428, PETRI_PLACES=90, PETRI_TRANSITIONS=120}
[2024-11-24 01:26:58,194 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 11 predicate places.
[2024-11-24 01:26:58,194 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 120 transitions, 428 flow
[2024-11-24 01:26:58,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:26:58,195 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:26:58,195 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:26:58,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 01:26:58,196 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:26:58,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:26:58,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2128073223, now seen corresponding path program 1 times
[2024-11-24 01:26:58,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:26:58,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275716302]
[2024-11-24 01:26:58,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:26:58,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:26:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:26:58,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:26:58,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:26:58,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275716302]
[2024-11-24 01:26:58,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275716302] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:26:58,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:26:58,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:26:58,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042826898]
[2024-11-24 01:26:58,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:26:58,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:26:58,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:26:58,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:26:58,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:26:58,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89
[2024-11-24 01:26:58,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 120 transitions, 428 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:26:58,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:26:58,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89
[2024-11-24 01:26:58,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:27:01,237 INFO L124 PetriNetUnfolderBase]: 13623/23129 cut-off events.
[2024-11-24 01:27:01,238 INFO L125 PetriNetUnfolderBase]: For 2742/2742 co-relation queries the response was YES.
[2024-11-24 01:27:01,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43406 conditions, 23129 events. 13623/23129 cut-off events. For 2742/2742 co-relation queries the response was YES. Maximal size of possible extension queue 1169. Compared 183785 event pairs, 8268 based on Foata normal form. 230/17092 useless extension candidates. Maximal degree in co-relation 43298. Up to 8647 conditions per place.
[2024-11-24 01:27:01,449 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 135 selfloop transitions, 9 changer transitions 0/176 dead transitions.
[2024-11-24 01:27:01,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 176 transitions, 890 flow
[2024-11-24 01:27:01,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:27:01,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 01:27:01,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 281 transitions.
[2024-11-24 01:27:01,455 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6314606741573033
[2024-11-24 01:27:01,455 INFO L175 Difference]: Start difference. First operand has 90 places, 120 transitions, 428 flow. Second operand 5 states and 281 transitions.
[2024-11-24 01:27:01,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 176 transitions, 890 flow
[2024-11-24 01:27:01,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 176 transitions, 885 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 01:27:01,476 INFO L231 Difference]: Finished difference. Result has 95 places, 121 transitions, 459 flow
[2024-11-24 01:27:01,478 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=459, PETRI_PLACES=95, PETRI_TRANSITIONS=121}
[2024-11-24 01:27:01,479 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 16 predicate places.
[2024-11-24 01:27:01,479 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 121 transitions, 459 flow
[2024-11-24 01:27:01,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:27:01,480 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:27:01,480 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:27:01,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 01:27:01,481 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:27:01,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:27:01,482 INFO L85 PathProgramCache]: Analyzing trace with hash -955121771, now seen corresponding path program 1 times
[2024-11-24 01:27:01,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:27:01,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590619512]
[2024-11-24 01:27:01,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:27:01,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:27:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:27:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:27:01,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:27:01,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590619512]
[2024-11-24 01:27:01,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590619512] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:27:01,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:27:01,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:27:01,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507493708]
[2024-11-24 01:27:01,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:27:01,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:27:01,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:27:01,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:27:01,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:27:01,688 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 89
[2024-11-24 01:27:01,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 121 transitions, 459 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:27:01,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:27:01,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 89
[2024-11-24 01:27:01,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:27:04,985 INFO L124 PetriNetUnfolderBase]: 22218/33074 cut-off events.
[2024-11-24 01:27:04,985 INFO L125 PetriNetUnfolderBase]: For 4052/4412 co-relation queries the response was YES.
[2024-11-24 01:27:05,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66444 conditions, 33074 events. 22218/33074 cut-off events. For 4052/4412 co-relation queries the response was YES. Maximal size of possible extension queue 1055. Compared 218848 event pairs, 10634 based on Foata normal form. 448/25903 useless extension candidates. Maximal degree in co-relation 66332. Up to 21124 conditions per place.
[2024-11-24 01:27:05,265 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 143 selfloop transitions, 4 changer transitions 0/179 dead transitions.
[2024-11-24 01:27:05,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 179 transitions, 899 flow
[2024-11-24 01:27:05,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:27:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 01:27:05,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions.
[2024-11-24 01:27:05,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809
[2024-11-24 01:27:05,269 INFO L175 Difference]: Start difference. First operand has 95 places, 121 transitions, 459 flow. Second operand 4 states and 251 transitions.
[2024-11-24 01:27:05,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 179 transitions, 899 flow
[2024-11-24 01:27:05,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 179 transitions, 896 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-24 01:27:05,282 INFO L231 Difference]: Finished difference. Result has 99 places, 124 transitions, 485 flow
[2024-11-24 01:27:05,282 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=485, PETRI_PLACES=99, PETRI_TRANSITIONS=124}
[2024-11-24 01:27:05,285 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places.
[2024-11-24 01:27:05,286 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 124 transitions, 485 flow
[2024-11-24 01:27:05,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:27:05,286 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:27:05,286 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:27:05,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 01:27:05,287 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:27:05,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:27:05,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1545759606, now seen corresponding path program 1 times
[2024-11-24 01:27:05,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:27:05,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656960982]
[2024-11-24 01:27:05,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:27:05,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:27:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:27:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:27:05,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:27:05,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656960982]
[2024-11-24 01:27:05,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656960982] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:27:05,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:27:05,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:27:05,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933541433]
[2024-11-24 01:27:05,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:27:05,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:27:05,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:27:05,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:27:05,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:27:05,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89
[2024-11-24 01:27:05,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 124 transitions, 485 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:27:05,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:27:05,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89
[2024-11-24 01:27:05,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:27:11,454 INFO L124 PetriNetUnfolderBase]: 39836/67544 cut-off events.
[2024-11-24 01:27:11,455 INFO L125 PetriNetUnfolderBase]: For 18080/18152 co-relation queries the response was YES.
[2024-11-24 01:27:11,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136867 conditions, 67544 events. 39836/67544 cut-off events. For 18080/18152 co-relation queries the response was YES. Maximal size of possible extension queue 2585. Compared 604038 event pairs, 24248 based on Foata normal form. 656/54819 useless extension candidates. Maximal degree in co-relation 136680. Up to 24705 conditions per place.
[2024-11-24 01:27:12,043 INFO L140 encePairwiseOnDemand]: 80/89 looper letters, 155 selfloop transitions, 12 changer transitions 0/200 dead transitions.
[2024-11-24 01:27:12,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 200 transitions, 1106 flow
[2024-11-24 01:27:12,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-24 01:27:12,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-11-24 01:27:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 364 transitions.
[2024-11-24 01:27:12,049 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5842696629213483
[2024-11-24 01:27:12,049 INFO L175 Difference]: Start difference. First operand has 99 places, 124 transitions, 485 flow. Second operand 7 states and 364 transitions.
[2024-11-24 01:27:12,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 200 transitions, 1106 flow
[2024-11-24 01:27:12,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 200 transitions, 1101 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-24 01:27:12,177 INFO L231 Difference]: Finished difference. Result has 109 places, 133 transitions, 598 flow
[2024-11-24 01:27:12,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=598, PETRI_PLACES=109, PETRI_TRANSITIONS=133}
[2024-11-24 01:27:12,178 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 30 predicate places.
[2024-11-24 01:27:12,178 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 133 transitions, 598 flow
[2024-11-24 01:27:12,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:27:12,179 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:27:12,179 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:27:12,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-24 01:27:12,179 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:27:12,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:27:12,180 INFO L85 PathProgramCache]: Analyzing trace with hash 456028799, now seen corresponding path program 1 times
[2024-11-24 01:27:12,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:27:12,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680894341]
[2024-11-24 01:27:12,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:27:12,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:27:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:27:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:27:12,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:27:12,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680894341]
[2024-11-24 01:27:12,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680894341] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:27:12,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:27:12,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:27:12,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784895988]
[2024-11-24 01:27:12,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:27:12,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 01:27:12,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:27:12,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 01:27:12,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:27:12,416 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89
[2024-11-24 01:27:12,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 133 transitions, 598 flow. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 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)
[2024-11-24 01:27:12,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:27:12,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89
[2024-11-24 01:27:12,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:27:24,513 INFO L124 PetriNetUnfolderBase]: 82596/137796 cut-off events.
[2024-11-24 01:27:24,514 INFO L125 PetriNetUnfolderBase]: For 24700/24844 co-relation queries the response was YES.
[2024-11-24 01:27:24,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274131 conditions, 137796 events. 82596/137796 cut-off events. For 24700/24844 co-relation queries the response was YES. Maximal size of possible extension queue 4885. Compared 1310109 event pairs, 50552 based on Foata normal form. 588/108824 useless extension candidates. Maximal degree in co-relation 273937. Up to 51944 conditions per place.
[2024-11-24 01:27:25,740 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 125 selfloop transitions, 16 changer transitions 0/176 dead transitions.
[2024-11-24 01:27:25,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 176 transitions, 996 flow
[2024-11-24 01:27:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-24 01:27:25,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-24 01:27:25,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 278 transitions.
[2024-11-24 01:27:25,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6247191011235955
[2024-11-24 01:27:25,747 INFO L175 Difference]: Start difference. First operand has 109 places, 133 transitions, 598 flow. Second operand 5 states and 278 transitions.
[2024-11-24 01:27:25,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 176 transitions, 996 flow
[2024-11-24 01:27:26,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 176 transitions, 994 flow, removed 1 selfloop flow, removed 0 redundant places.
[2024-11-24 01:27:26,103 INFO L231 Difference]: Finished difference. Result has 115 places, 134 transitions, 651 flow
[2024-11-24 01:27:26,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=651, PETRI_PLACES=115, PETRI_TRANSITIONS=134}
[2024-11-24 01:27:26,104 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 36 predicate places.
[2024-11-24 01:27:26,104 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 134 transitions, 651 flow
[2024-11-24 01:27:26,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 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)
[2024-11-24 01:27:26,105 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:27:26,105 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:27:26,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-24 01:27:26,105 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:27:26,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:27:26,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1704932903, now seen corresponding path program 1 times
[2024-11-24 01:27:26,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:27:26,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24393502]
[2024-11-24 01:27:26,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:27:26,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:27:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:27:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:27:26,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:27:26,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24393502]
[2024-11-24 01:27:26,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24393502] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 01:27:26,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932662479]
[2024-11-24 01:27:26,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:27:26,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:27:26,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:27:26,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 01:27:26,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 01:27:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:27:26,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-24 01:27:26,475 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 01:27:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-24 01:27:26,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 01:27:26,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932662479] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:27:26,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 01:27:26,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6
[2024-11-24 01:27:26,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006667021]
[2024-11-24 01:27:26,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:27:26,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:27:26,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:27:26,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:27:26,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-24 01:27:26,615 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 89
[2024-11-24 01:27:26,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 134 transitions, 651 flow. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:27:26,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:27:26,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 89
[2024-11-24 01:27:26,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 01:27:37,515 INFO L124 PetriNetUnfolderBase]: 74808/127228 cut-off events.
[2024-11-24 01:27:37,515 INFO L125 PetriNetUnfolderBase]: For 31757/31901 co-relation queries the response was YES.
[2024-11-24 01:27:37,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254054 conditions, 127228 events. 74808/127228 cut-off events. For 31757/31901 co-relation queries the response was YES. Maximal size of possible extension queue 4411. Compared 1223328 event pairs, 46544 based on Foata normal form. 1496/103320 useless extension candidates. Maximal degree in co-relation 253853. Up to 92674 conditions per place.
[2024-11-24 01:27:38,313 INFO L140 encePairwiseOnDemand]: 87/89 looper letters, 95 selfloop transitions, 1 changer transitions 0/132 dead transitions.
[2024-11-24 01:27:38,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 132 transitions, 829 flow
[2024-11-24 01:27:38,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:27:38,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-24 01:27:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions.
[2024-11-24 01:27:38,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6104868913857678
[2024-11-24 01:27:38,315 INFO L175 Difference]: Start difference. First operand has 115 places, 134 transitions, 651 flow. Second operand 3 states and 163 transitions.
[2024-11-24 01:27:38,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 132 transitions, 829 flow
[2024-11-24 01:27:38,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 132 transitions, 801 flow, removed 0 selfloop flow, removed 5 redundant places.
[2024-11-24 01:27:38,577 INFO L231 Difference]: Finished difference. Result has 111 places, 132 transitions, 611 flow
[2024-11-24 01:27:38,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=611, PETRI_PLACES=111, PETRI_TRANSITIONS=132}
[2024-11-24 01:27:38,578 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 32 predicate places.
[2024-11-24 01:27:38,579 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 132 transitions, 611 flow
[2024-11-24 01:27:38,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:27:38,579 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 01:27:38,579 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:27:38,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-24 01:27:38,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa587ae5-9caa-4d15-adbc-3985b56df0e5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 01:27:38,783 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] ===
[2024-11-24 01:27:38,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:27:38,784 INFO L85 PathProgramCache]: Analyzing trace with hash 390602174, now seen corresponding path program 1 times
[2024-11-24 01:27:38,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:27:38,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609001004]
[2024-11-24 01:27:38,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:27:38,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:27:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:27:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:27:38,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:27:38,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609001004]
[2024-11-24 01:27:38,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609001004] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:27:38,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:27:38,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:27:38,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471136836]
[2024-11-24 01:27:38,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:27:38,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:27:38,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:27:38,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:27:38,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:27:38,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 89
[2024-11-24 01:27:38,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 132 transitions, 611 flow. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:27:38,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 01:27:38,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 89
[2024-11-24 01:27:38,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand