./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX --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 cb010ae024b402436affeb854f96a5f9e0df3d8ec2cfe8b3a7f33676b7169a2c
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:20:34,024 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:20:34,146 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-08 17:20:34,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:20:34,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:20:34,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:20:34,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:20:34,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:20:34,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:20:34,206 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:20:34,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:20:34,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:20:34,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:20:34,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:20:34,211 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:20:34,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:20:34,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:20:34,213 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:20:34,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:20:34,218 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:20:34,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:20:34,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:20:34,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:20:34,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:20:34,221 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:20:34,221 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-08 17:20:34,222 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:20:34,222 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:20:34,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:20:34,227 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:20:34,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:20:34,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:20:34,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:20:34,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:20:34,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:20:34,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:20:34,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:20:34,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:20:34,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:20:34,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:20:34,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:20:34,249 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:20:34,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:20:34,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:20:34,250 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb010ae024b402436affeb854f96a5f9e0df3d8ec2cfe8b3a7f33676b7169a2c
[2024-11-08 17:20:34,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:20:34,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:20:34,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:20:34,644 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:20:34,645 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:20:34,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i
Unable to find full path for "g++"
[2024-11-08 17:20:37,150 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:20:37,461 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:20:37,461 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/sv-benchmarks/c/goblint-regression/28-race_reach_21-deref_read_racing.i
[2024-11-08 17:20:37,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/data/87737feb8/9390e288901b4e7fa6ee0a4f26fc5ea4/FLAG154bd027a
[2024-11-08 17:20:37,498 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/data/87737feb8/9390e288901b4e7fa6ee0a4f26fc5ea4
[2024-11-08 17:20:37,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:20:37,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:20:37,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:20:37,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:20:37,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:20:37,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:20:37" (1/1) ...
[2024-11-08 17:20:37,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c5bfe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:37, skipping insertion in model container
[2024-11-08 17:20:37,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:20:37" (1/1) ...
[2024-11-08 17:20:37,657 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:20:38,144 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:20:38,177 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:20:38,253 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:20:38,319 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:20:38,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38 WrapperNode
[2024-11-08 17:20:38,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:20:38,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:20:38,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:20:38,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:20:38,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,399 INFO L138 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64
[2024-11-08 17:20:38,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:20:38,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:20:38,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:20:38,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:20:38,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,450 INFO L175 MemorySlicer]: Split 18 memory accesses to 4 slices as follows [2, 5, 6, 5]. 33 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 1, 5]. The 2 writes are split as follows [0, 0, 2, 0].
[2024-11-08 17:20:38,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,463 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:20:38,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:20:38,487 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:20:38,487 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:20:38,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (1/1) ...
[2024-11-08 17:20:38,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:20:38,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:20:38,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:20:38,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:20:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 17:20:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 17:20:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-08 17:20:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-08 17:20:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 17:20:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 17:20:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-08 17:20:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-08 17:20:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-08 17:20:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:20:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2024-11-08 17:20:38,586 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2024-11-08 17:20:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:20:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 17:20:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-08 17:20:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-08 17:20:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-08 17:20:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:20:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:20:38,593 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-08 17:20:38,777 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:20:38,779 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:20:39,025 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-08 17:20:39,025 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:20:39,344 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:20:39,345 INFO L316 CfgBuilder]: Removed 8 assume(true) statements.
[2024-11-08 17:20:39,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:20:39 BoogieIcfgContainer
[2024-11-08 17:20:39,345 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:20:39,349 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:20:39,349 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:20:39,353 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:20:39,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:20:37" (1/3) ...
[2024-11-08 17:20:39,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183532f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:20:39, skipping insertion in model container
[2024-11-08 17:20:39,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:20:38" (2/3) ...
[2024-11-08 17:20:39,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183532f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:20:39, skipping insertion in model container
[2024-11-08 17:20:39,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:20:39" (3/3) ...
[2024-11-08 17:20:39,357 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_21-deref_read_racing.i
[2024-11-08 17:20:39,378 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:20:39,378 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2024-11-08 17:20:39,378 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-08 17:20:39,430 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-08 17:20:39,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 52 transitions, 108 flow
[2024-11-08 17:20:39,518 INFO L124 PetriNetUnfolderBase]: 12/65 cut-off events.
[2024-11-08 17:20:39,518 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 17:20:39,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 12/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 160 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 49. Up to 4 conditions per place.
[2024-11-08 17:20:39,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 52 transitions, 108 flow
[2024-11-08 17:20:39,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 52 transitions, 108 flow
[2024-11-08 17:20:39,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:20:39,547 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;@495303b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:20:39,547 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations.
[2024-11-08 17:20:39,556 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 17:20:39,556 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events.
[2024-11-08 17:20:39,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 17:20:39,556 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:20:39,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:20:39,558 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2024-11-08 17:20:39,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:20:39,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1136387085, now seen corresponding path program 1 times
[2024-11-08 17:20:39,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:20:39,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011058193]
[2024-11-08 17:20:39,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:39,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:20:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:40,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:20:40,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:20:40,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011058193]
[2024-11-08 17:20:40,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011058193] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:20:40,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:20:40,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:20:40,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395668750]
[2024-11-08 17:20:40,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:20:40,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:20:40,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:20:40,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:20:40,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:20:40,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 52
[2024-11-08 17:20:40,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 52 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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)
[2024-11-08 17:20:40,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:20:40,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 52
[2024-11-08 17:20:40,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:20:40,457 INFO L124 PetriNetUnfolderBase]: 111/308 cut-off events.
[2024-11-08 17:20:40,458 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 17:20:40,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 308 events. 111/308 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1386 event pairs, 0 based on Foata normal form. 65/359 useless extension candidates. Maximal degree in co-relation 522. Up to 197 conditions per place.
[2024-11-08 17:20:40,470 INFO L140 encePairwiseOnDemand]: 37/52 looper letters, 43 selfloop transitions, 3 changer transitions 0/65 dead transitions.
[2024-11-08 17:20:40,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 65 transitions, 226 flow
[2024-11-08 17:20:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:20:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 17:20:40,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions.
[2024-11-08 17:20:40,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7019230769230769
[2024-11-08 17:20:40,494 INFO L175 Difference]: Start difference. First operand has 46 places, 52 transitions, 108 flow. Second operand 4 states and 146 transitions.
[2024-11-08 17:20:40,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 65 transitions, 226 flow
[2024-11-08 17:20:40,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 65 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 17:20:40,505 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 100 flow
[2024-11-08 17:20:40,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=48, PETRI_TRANSITIONS=42}
[2024-11-08 17:20:40,522 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places.
[2024-11-08 17:20:40,523 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 100 flow
[2024-11-08 17:20:40,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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)
[2024-11-08 17:20:40,524 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:20:40,525 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:20:40,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:20:40,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2024-11-08 17:20:40,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:20:40,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2088380344, now seen corresponding path program 1 times
[2024-11-08 17:20:40,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:20:40,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481302201]
[2024-11-08 17:20:40,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:40,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:20:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:20:40,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:20:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:20:40,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:20:40,663 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 17:20:40,666 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining)
[2024-11-08 17:20:40,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining)
[2024-11-08 17:20:40,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining)
[2024-11-08 17:20:40,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining)
[2024-11-08 17:20:40,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining)
[2024-11-08 17:20:40,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining)
[2024-11-08 17:20:40,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining)
[2024-11-08 17:20:40,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining)
[2024-11-08 17:20:40,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining)
[2024-11-08 17:20:40,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining)
[2024-11-08 17:20:40,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining)
[2024-11-08 17:20:40,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:20:40,672 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-08 17:20:40,676 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-08 17:20:40,676 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-11-08 17:20:40,710 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-08 17:20:40,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 84 transitions, 178 flow
[2024-11-08 17:20:40,753 INFO L124 PetriNetUnfolderBase]: 21/115 cut-off events.
[2024-11-08 17:20:40,756 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-08 17:20:40,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 115 events. 21/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 352 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 80. Up to 6 conditions per place.
[2024-11-08 17:20:40,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 84 transitions, 178 flow
[2024-11-08 17:20:40,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 84 transitions, 178 flow
[2024-11-08 17:20:40,765 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:20:40,769 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;@495303b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:20:40,770 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations.
[2024-11-08 17:20:40,780 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 17:20:40,780 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events.
[2024-11-08 17:20:40,780 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 17:20:40,780 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:20:40,780 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:20:40,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] ===
[2024-11-08 17:20:40,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:20:40,782 INFO L85 PathProgramCache]: Analyzing trace with hash -673540116, now seen corresponding path program 1 times
[2024-11-08 17:20:40,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:20:40,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10228592]
[2024-11-08 17:20:40,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:40,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:20:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:20:40,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:20:40,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10228592]
[2024-11-08 17:20:40,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10228592] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:20:40,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:20:40,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:20:40,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48121951]
[2024-11-08 17:20:40,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:20:40,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:20:40,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:20:40,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:20:40,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:20:40,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 84
[2024-11-08 17:20:40,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 84 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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)
[2024-11-08 17:20:40,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:20:40,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 84
[2024-11-08 17:20:40,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:20:42,362 INFO L124 PetriNetUnfolderBase]: 3291/6734 cut-off events.
[2024-11-08 17:20:42,363 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES.
[2024-11-08 17:20:42,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11917 conditions, 6734 events. 3291/6734 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 52912 event pairs, 1754 based on Foata normal form. 1339/7489 useless extension candidates. Maximal degree in co-relation 2418. Up to 5105 conditions per place.
[2024-11-08 17:20:42,420 INFO L140 encePairwiseOnDemand]: 63/84 looper letters, 59 selfloop transitions, 3 changer transitions 0/95 dead transitions.
[2024-11-08 17:20:42,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 95 transitions, 324 flow
[2024-11-08 17:20:42,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:20:42,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 17:20:42,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 224 transitions.
[2024-11-08 17:20:42,423 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666
[2024-11-08 17:20:42,423 INFO L175 Difference]: Start difference. First operand has 74 places, 84 transitions, 178 flow. Second operand 4 states and 224 transitions.
[2024-11-08 17:20:42,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 95 transitions, 324 flow
[2024-11-08 17:20:42,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 95 transitions, 324 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 17:20:42,430 INFO L231 Difference]: Finished difference. Result has 79 places, 72 transitions, 176 flow
[2024-11-08 17:20:42,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=79, PETRI_TRANSITIONS=72}
[2024-11-08 17:20:42,432 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places.
[2024-11-08 17:20:42,432 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 72 transitions, 176 flow
[2024-11-08 17:20:42,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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)
[2024-11-08 17:20:42,433 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:20:42,433 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:20:42,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:20:42,434 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] ===
[2024-11-08 17:20:42,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:20:42,434 INFO L85 PathProgramCache]: Analyzing trace with hash 310097479, now seen corresponding path program 1 times
[2024-11-08 17:20:42,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:20:42,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545228112]
[2024-11-08 17:20:42,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:42,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:20:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:20:42,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:20:42,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545228112]
[2024-11-08 17:20:42,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545228112] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:20:42,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:20:42,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:20:42,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849126541]
[2024-11-08 17:20:42,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:20:42,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:20:42,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:20:42,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:20:42,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:20:42,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 84
[2024-11-08 17:20:42,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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)
[2024-11-08 17:20:42,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:20:42,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 84
[2024-11-08 17:20:42,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:20:43,617 INFO L124 PetriNetUnfolderBase]: 2397/5209 cut-off events.
[2024-11-08 17:20:43,617 INFO L125 PetriNetUnfolderBase]: For 218/551 co-relation queries the response was YES.
[2024-11-08 17:20:43,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9301 conditions, 5209 events. 2397/5209 cut-off events. For 218/551 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 40819 event pairs, 757 based on Foata normal form. 115/5058 useless extension candidates. Maximal degree in co-relation 9199. Up to 3353 conditions per place.
[2024-11-08 17:20:43,657 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 74 selfloop transitions, 6 changer transitions 0/117 dead transitions.
[2024-11-08 17:20:43,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 117 transitions, 448 flow
[2024-11-08 17:20:43,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:20:43,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-08 17:20:43,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 261 transitions.
[2024-11-08 17:20:43,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714
[2024-11-08 17:20:43,664 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 176 flow. Second operand 5 states and 261 transitions.
[2024-11-08 17:20:43,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 117 transitions, 448 flow
[2024-11-08 17:20:43,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 117 transitions, 444 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-08 17:20:43,670 INFO L231 Difference]: Finished difference. Result has 85 places, 77 transitions, 218 flow
[2024-11-08 17:20:43,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=85, PETRI_TRANSITIONS=77}
[2024-11-08 17:20:43,674 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 11 predicate places.
[2024-11-08 17:20:43,675 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 77 transitions, 218 flow
[2024-11-08 17:20:43,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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)
[2024-11-08 17:20:43,676 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:20:43,676 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:20:43,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 17:20:43,677 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] ===
[2024-11-08 17:20:43,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:20:43,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1883769020, now seen corresponding path program 1 times
[2024-11-08 17:20:43,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:20:43,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636219424]
[2024-11-08 17:20:43,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:43,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:20:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:43,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:20:43,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:20:43,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636219424]
[2024-11-08 17:20:43,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636219424] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:20:43,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61709142]
[2024-11-08 17:20:43,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:43,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:20:43,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:20:43,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:20:43,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:20:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:43,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:20:43,924 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:20:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:20:44,063 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:20:44,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61709142] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:20:44,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:20:44,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8
[2024-11-08 17:20:44,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505232804]
[2024-11-08 17:20:44,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:20:44,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:20:44,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:20:44,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:20:44,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:20:44,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 84
[2024-11-08 17:20:44,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 77 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 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)
[2024-11-08 17:20:44,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:20:44,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 84
[2024-11-08 17:20:44,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:20:45,482 INFO L124 PetriNetUnfolderBase]: 3482/6525 cut-off events.
[2024-11-08 17:20:45,483 INFO L125 PetriNetUnfolderBase]: For 1260/1260 co-relation queries the response was YES.
[2024-11-08 17:20:45,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13727 conditions, 6525 events. 3482/6525 cut-off events. For 1260/1260 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 48916 event pairs, 945 based on Foata normal form. 152/6283 useless extension candidates. Maximal degree in co-relation 12717. Up to 2271 conditions per place.
[2024-11-08 17:20:45,547 INFO L140 encePairwiseOnDemand]: 79/84 looper letters, 92 selfloop transitions, 6 changer transitions 0/130 dead transitions.
[2024-11-08 17:20:45,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 130 transitions, 564 flow
[2024-11-08 17:20:45,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:20:45,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 17:20:45,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions.
[2024-11-08 17:20:45,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625
[2024-11-08 17:20:45,551 INFO L175 Difference]: Start difference. First operand has 85 places, 77 transitions, 218 flow. Second operand 4 states and 210 transitions.
[2024-11-08 17:20:45,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 130 transitions, 564 flow
[2024-11-08 17:20:45,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 130 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 17:20:45,567 INFO L231 Difference]: Finished difference. Result has 87 places, 76 transitions, 226 flow
[2024-11-08 17:20:45,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=87, PETRI_TRANSITIONS=76}
[2024-11-08 17:20:45,570 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 13 predicate places.
[2024-11-08 17:20:45,572 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 76 transitions, 226 flow
[2024-11-08 17:20:45,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 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)
[2024-11-08 17:20:45,573 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:20:45,573 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-11-08 17:20:45,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 17:20:45,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:20:45,779 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] ===
[2024-11-08 17:20:45,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:20:45,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1732702113, now seen corresponding path program 1 times
[2024-11-08 17:20:45,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:20:45,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364071429]
[2024-11-08 17:20:45,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:45,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:20:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:20:45,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:20:45,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364071429]
[2024-11-08 17:20:45,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364071429] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:20:45,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:20:45,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:20:45,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076371316]
[2024-11-08 17:20:45,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:20:45,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:20:45,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:20:45,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:20:45,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:20:45,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 84
[2024-11-08 17:20:45,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 76 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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)
[2024-11-08 17:20:45,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:20:45,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 84
[2024-11-08 17:20:45,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:20:47,108 INFO L124 PetriNetUnfolderBase]: 3039/5850 cut-off events.
[2024-11-08 17:20:47,108 INFO L125 PetriNetUnfolderBase]: For 2085/2085 co-relation queries the response was YES.
[2024-11-08 17:20:47,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12552 conditions, 5850 events. 3039/5850 cut-off events. For 2085/2085 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 43925 event pairs, 845 based on Foata normal form. 316/6067 useless extension candidates. Maximal degree in co-relation 11648. Up to 3179 conditions per place.
[2024-11-08 17:20:47,162 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 91 selfloop transitions, 6 changer transitions 0/129 dead transitions.
[2024-11-08 17:20:47,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 129 transitions, 568 flow
[2024-11-08 17:20:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:20:47,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 17:20:47,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions.
[2024-11-08 17:20:47,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625
[2024-11-08 17:20:47,165 INFO L175 Difference]: Start difference. First operand has 87 places, 76 transitions, 226 flow. Second operand 4 states and 210 transitions.
[2024-11-08 17:20:47,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 129 transitions, 568 flow
[2024-11-08 17:20:47,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 129 transitions, 556 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-11-08 17:20:47,178 INFO L231 Difference]: Finished difference. Result has 87 places, 75 transitions, 226 flow
[2024-11-08 17:20:47,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=87, PETRI_TRANSITIONS=75}
[2024-11-08 17:20:47,179 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 13 predicate places.
[2024-11-08 17:20:47,179 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 75 transitions, 226 flow
[2024-11-08 17:20:47,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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)
[2024-11-08 17:20:47,183 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:20:47,183 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1]
[2024-11-08 17:20:47,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 17:20:47,184 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] ===
[2024-11-08 17:20:47,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:20:47,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2011311610, now seen corresponding path program 1 times
[2024-11-08 17:20:47,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:20:47,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156515333]
[2024-11-08 17:20:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:47,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:20:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:20:47,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:20:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:20:47,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:20:47,246 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 17:20:47,246 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining)
[2024-11-08 17:20:47,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining)
[2024-11-08 17:20:47,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining)
[2024-11-08 17:20:47,249 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining)
[2024-11-08 17:20:47,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining)
[2024-11-08 17:20:47,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining)
[2024-11-08 17:20:47,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining)
[2024-11-08 17:20:47,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining)
[2024-11-08 17:20:47,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining)
[2024-11-08 17:20:47,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining)
[2024-11-08 17:20:47,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining)
[2024-11-08 17:20:47,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining)
[2024-11-08 17:20:47,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining)
[2024-11-08 17:20:47,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining)
[2024-11-08 17:20:47,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining)
[2024-11-08 17:20:47,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 17:20:47,258 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2024-11-08 17:20:47,259 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-08 17:20:47,259 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-11-08 17:20:47,321 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-08 17:20:47,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 116 transitions, 250 flow
[2024-11-08 17:20:47,364 INFO L124 PetriNetUnfolderBase]: 30/165 cut-off events.
[2024-11-08 17:20:47,364 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES.
[2024-11-08 17:20:47,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 165 events. 30/165 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 547 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 126. Up to 8 conditions per place.
[2024-11-08 17:20:47,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 116 transitions, 250 flow
[2024-11-08 17:20:47,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 116 transitions, 250 flow
[2024-11-08 17:20:47,371 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:20:47,372 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;@495303b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:20:47,376 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations.
[2024-11-08 17:20:47,380 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 17:20:47,381 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events.
[2024-11-08 17:20:47,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 17:20:47,381 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:20:47,382 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-08 17:20:47,382 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] ===
[2024-11-08 17:20:47,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:20:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1536796725, now seen corresponding path program 1 times
[2024-11-08 17:20:47,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:20:47,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232405992]
[2024-11-08 17:20:47,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:20:47,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:20:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:20:47,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:20:47,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:20:47,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232405992]
[2024-11-08 17:20:47,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232405992] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:20:47,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:20:47,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:20:47,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102471687]
[2024-11-08 17:20:47,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:20:47,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:20:47,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:20:47,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:20:47,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:20:47,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 116
[2024-11-08 17:20:47,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 116 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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)
[2024-11-08 17:20:47,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:20:47,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 116
[2024-11-08 17:20:47,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:21:02,010 INFO L124 PetriNetUnfolderBase]: 60459/108418 cut-off events.
[2024-11-08 17:21:02,010 INFO L125 PetriNetUnfolderBase]: For 1092/1092 co-relation queries the response was YES.
[2024-11-08 17:21:02,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192082 conditions, 108418 events. 60459/108418 cut-off events. For 1092/1092 co-relation queries the response was YES. Maximal size of possible extension queue 2629. Compared 1104513 event pairs, 37884 based on Foata normal form. 23621/123550 useless extension candidates. Maximal degree in co-relation 12654. Up to 83009 conditions per place.
[2024-11-08 17:21:02,845 INFO L140 encePairwiseOnDemand]: 89/116 looper letters, 71 selfloop transitions, 3 changer transitions 0/121 dead transitions.
[2024-11-08 17:21:02,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 121 transitions, 408 flow
[2024-11-08 17:21:02,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:21:02,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 17:21:02,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions.
[2024-11-08 17:21:02,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6422413793103449
[2024-11-08 17:21:02,849 INFO L175 Difference]: Start difference. First operand has 102 places, 116 transitions, 250 flow. Second operand 4 states and 298 transitions.
[2024-11-08 17:21:02,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 121 transitions, 408 flow
[2024-11-08 17:21:02,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 121 transitions, 406 flow, removed 1 selfloop flow, removed 0 redundant places.
[2024-11-08 17:21:02,860 INFO L231 Difference]: Finished difference. Result has 107 places, 98 transitions, 234 flow
[2024-11-08 17:21:02,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=107, PETRI_TRANSITIONS=98}
[2024-11-08 17:21:02,862 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 5 predicate places.
[2024-11-08 17:21:02,864 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 98 transitions, 234 flow
[2024-11-08 17:21:02,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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)
[2024-11-08 17:21:02,865 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:21:02,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:21:02,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 17:21:02,866 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] ===
[2024-11-08 17:21:02,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:21:02,866 INFO L85 PathProgramCache]: Analyzing trace with hash 312921658, now seen corresponding path program 1 times
[2024-11-08 17:21:02,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:21:02,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72845439]
[2024-11-08 17:21:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:21:02,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:21:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:21:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:21:02,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:21:02,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72845439]
[2024-11-08 17:21:02,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72845439] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:21:02,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:21:02,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:21:02,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169382093]
[2024-11-08 17:21:02,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:21:02,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:21:02,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:21:02,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:21:02,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:21:03,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 116
[2024-11-08 17:21:03,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 98 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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)
[2024-11-08 17:21:03,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:21:03,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 116
[2024-11-08 17:21:03,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:21:12,860 INFO L124 PetriNetUnfolderBase]: 47118/82877 cut-off events.
[2024-11-08 17:21:12,860 INFO L125 PetriNetUnfolderBase]: For 2852/7371 co-relation queries the response was YES.
[2024-11-08 17:21:13,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151239 conditions, 82877 events. 47118/82877 cut-off events. For 2852/7371 co-relation queries the response was YES. Maximal size of possible extension queue 2131. Compared 800077 event pairs, 18833 based on Foata normal form. 1267/80326 useless extension candidates. Maximal degree in co-relation 151136. Up to 60521 conditions per place.
[2024-11-08 17:21:13,517 INFO L140 encePairwiseOnDemand]: 109/116 looper letters, 110 selfloop transitions, 8 changer transitions 0/169 dead transitions.
[2024-11-08 17:21:13,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 169 transitions, 649 flow
[2024-11-08 17:21:13,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:21:13,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-08 17:21:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 369 transitions.
[2024-11-08 17:21:13,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6362068965517241
[2024-11-08 17:21:13,519 INFO L175 Difference]: Start difference. First operand has 107 places, 98 transitions, 234 flow. Second operand 5 states and 369 transitions.
[2024-11-08 17:21:13,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 169 transitions, 649 flow
[2024-11-08 17:21:13,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 169 transitions, 645 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-08 17:21:13,532 INFO L231 Difference]: Finished difference. Result has 113 places, 105 transitions, 293 flow
[2024-11-08 17:21:13,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=293, PETRI_PLACES=113, PETRI_TRANSITIONS=105}
[2024-11-08 17:21:13,534 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places.
[2024-11-08 17:21:13,535 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 105 transitions, 293 flow
[2024-11-08 17:21:13,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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)
[2024-11-08 17:21:13,536 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:21:13,536 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:21:13,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 17:21:13,536 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] ===
[2024-11-08 17:21:13,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:21:13,537 INFO L85 PathProgramCache]: Analyzing trace with hash 266462522, now seen corresponding path program 1 times
[2024-11-08 17:21:13,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:21:13,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468704443]
[2024-11-08 17:21:13,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:21:13,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:21:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:21:13,658 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:21:13,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:21:13,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468704443]
[2024-11-08 17:21:13,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468704443] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:21:13,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134740880]
[2024-11-08 17:21:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:21:13,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:21:13,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:21:13,662 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:21:13,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:21:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:21:13,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-08 17:21:13,778 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:21:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:21:13,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:21:13,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134740880] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:21:13,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:21:13,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8
[2024-11-08 17:21:13,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425000675]
[2024-11-08 17:21:13,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:21:13,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:21:13,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:21:13,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:21:13,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:21:13,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 116
[2024-11-08 17:21:13,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 293 flow. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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)
[2024-11-08 17:21:13,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:21:13,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 116
[2024-11-08 17:21:13,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 17:21:27,542 INFO L124 PetriNetUnfolderBase]: 67870/114782 cut-off events.
[2024-11-08 17:21:27,542 INFO L125 PetriNetUnfolderBase]: For 28625/28625 co-relation queries the response was YES.
[2024-11-08 17:21:27,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236147 conditions, 114782 events. 67870/114782 cut-off events. For 28625/28625 co-relation queries the response was YES. Maximal size of possible extension queue 2777. Compared 1110542 event pairs, 21340 based on Foata normal form. 2120/110671 useless extension candidates. Maximal degree in co-relation 205254. Up to 39021 conditions per place.
[2024-11-08 17:21:28,711 INFO L140 encePairwiseOnDemand]: 111/116 looper letters, 132 selfloop transitions, 6 changer transitions 0/184 dead transitions.
[2024-11-08 17:21:28,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 184 transitions, 797 flow
[2024-11-08 17:21:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:21:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 17:21:28,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions.
[2024-11-08 17:21:28,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.646551724137931
[2024-11-08 17:21:28,714 INFO L175 Difference]: Start difference. First operand has 113 places, 105 transitions, 293 flow. Second operand 4 states and 300 transitions.
[2024-11-08 17:21:28,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 184 transitions, 797 flow
[2024-11-08 17:21:28,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 184 transitions, 797 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 17:21:28,787 INFO L231 Difference]: Finished difference. Result has 115 places, 104 transitions, 301 flow
[2024-11-08 17:21:28,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=115, PETRI_TRANSITIONS=104}
[2024-11-08 17:21:28,790 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 13 predicate places.
[2024-11-08 17:21:28,790 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 104 transitions, 301 flow
[2024-11-08 17:21:28,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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)
[2024-11-08 17:21:28,792 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 17:21:28,792 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-11-08 17:21:28,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 17:21:28,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267c3478-2dcd-4e8d-9dc5-2f014c74e853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-08 17:21:28,996 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] ===
[2024-11-08 17:21:28,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:21:28,997 INFO L85 PathProgramCache]: Analyzing trace with hash -329595883, now seen corresponding path program 1 times
[2024-11-08 17:21:28,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:21:28,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8438880]
[2024-11-08 17:21:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:21:28,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:21:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:21:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 17:21:29,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:21:29,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8438880]
[2024-11-08 17:21:29,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8438880] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:21:29,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:21:29,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:21:29,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635855282]
[2024-11-08 17:21:29,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:21:29,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:21:29,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:21:29,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:21:29,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:21:29,086 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 116
[2024-11-08 17:21:29,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 104 transitions, 301 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:21:29,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 17:21:29,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 116
[2024-11-08 17:21:29,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand