./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for data races
Using default analysis
Version 9bd2c7ff
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_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:54:10,015 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:54:10,166 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-11-19 07:54:10,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:54:10,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:54:10,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:54:10,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:54:10,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:54:10,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:54:10,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:54:10,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:54:10,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:54:10,238 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:54:10,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:54:10,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:54:10,242 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:54:10,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:54:10,242 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:54:10,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:54:10,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:54:10,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:54:10,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:54:10,245 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true
[2023-11-19 07:54:10,246 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:54:10,246 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:54:10,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:54:10,247 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:54:10,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:54:10,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:54:10,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:54:10,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:54:10,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:54:10,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:54:10,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:54:10,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:54:10,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:54:10,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:54:10,253 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:54:10,254 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:54:10,254 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:54:10,254 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:54:10,255 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_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e
[2023-11-19 07:54:10,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:54:10,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:54:10,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:54:10,689 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:54:10,690 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:54:10,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i
[2023-11-19 07:54:13,995 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:54:14,429 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:54:14,430 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i
[2023-11-19 07:54:14,459 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/data/3714627d4/eadea6b440554332aadce57849121865/FLAG8bbe74da5
[2023-11-19 07:54:14,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/data/3714627d4/eadea6b440554332aadce57849121865
[2023-11-19 07:54:14,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:54:14,489 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:54:14,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:54:14,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:54:14,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:54:14,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:14" (1/1) ...
[2023-11-19 07:54:14,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a858da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14, skipping insertion in model container
[2023-11-19 07:54:14,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:14" (1/1) ...
[2023-11-19 07:54:14,580 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:54:15,345 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:54:15,368 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:54:15,463 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:54:15,539 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:54:15,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15 WrapperNode
[2023-11-19 07:54:15,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:54:15,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:54:15,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:54:15,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:54:15,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,615 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90
[2023-11-19 07:54:15,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:54:15,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:54:15,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:54:15,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:54:15,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:54:15,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:54:15,664 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:54:15,664 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:54:15,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (1/1) ...
[2023-11-19 07:54:15,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:54:15,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:54:15,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:54:15,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:54:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:54:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:54:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:54:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:54:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-11-19 07:54:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:54:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2023-11-19 07:54:15,796 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2023-11-19 07:54:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:54:15,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:54:15,798 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-19 07:54:16,018 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:54:16,026 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:54:16,365 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:54:16,385 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:54:16,385 INFO L302 CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 07:54:16,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:16 BoogieIcfgContainer
[2023-11-19 07:54:16,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:54:16,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:54:16,397 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:54:16,402 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:54:16,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:14" (1/3) ...
[2023-11-19 07:54:16,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69601b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:16, skipping insertion in model container
[2023-11-19 07:54:16,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:15" (2/3) ...
[2023-11-19 07:54:16,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69601b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:16, skipping insertion in model container
[2023-11-19 07:54:16,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:16" (3/3) ...
[2023-11-19 07:54:16,411 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i
[2023-11-19 07:54:16,423 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:54:16,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:54:16,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2023-11-19 07:54:16,439 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:54:16,564 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-19 07:54:16,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions, 208 flow
[2023-11-19 07:54:16,678 INFO L124 PetriNetUnfolderBase]: 4/101 cut-off events.
[2023-11-19 07:54:16,679 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:54:16,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 4/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 84 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place.
[2023-11-19 07:54:16,686 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 102 transitions, 208 flow
[2023-11-19 07:54:16,692 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 101 transitions, 205 flow
[2023-11-19 07:54:16,697 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:54:16,710 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 101 transitions, 205 flow
[2023-11-19 07:54:16,714 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 101 transitions, 205 flow
[2023-11-19 07:54:16,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 101 transitions, 205 flow
[2023-11-19 07:54:16,752 INFO L124 PetriNetUnfolderBase]: 4/101 cut-off events.
[2023-11-19 07:54:16,753 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:54:16,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 4/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 84 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place.
[2023-11-19 07:54:16,758 INFO L119 LiptonReduction]: Number of co-enabled transitions 2280
[2023-11-19 07:54:19,350 INFO L134 LiptonReduction]: Checked pairs total: 8293
[2023-11-19 07:54:19,350 INFO L136 LiptonReduction]: Total number of compositions: 77
[2023-11-19 07:54:19,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:54:19,373 INFO L357 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, mHoare=true, 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;@4805b485, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:54:19,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2023-11-19 07:54:19,379 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:54:19,379 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events.
[2023-11-19 07:54:19,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:54:19,380 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:19,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:19,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-19 07:54:19,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:19,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1357459196, now seen corresponding path program 1 times
[2023-11-19 07:54:19,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:19,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366110763]
[2023-11-19 07:54:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:19,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:19,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:54:19,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:19,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366110763]
[2023-11-19 07:54:19,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366110763] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:54:19,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:54:19,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:54:19,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867930129]
[2023-11-19 07:54:19,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:19,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:54:19,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:19,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:54:19,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:54:19,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 179
[2023-11-19 07:54:19,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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)
[2023-11-19 07:54:19,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:19,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 179
[2023-11-19 07:54:19,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:19,922 INFO L124 PetriNetUnfolderBase]: 37/165 cut-off events.
[2023-11-19 07:54:19,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:54:19,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 165 events. 37/165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 244. Up to 89 conditions per place.
[2023-11-19 07:54:19,934 INFO L140 encePairwiseOnDemand]: 176/179 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions.
[2023-11-19 07:54:19,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow
[2023-11-19 07:54:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:54:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:54:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions.
[2023-11-19 07:54:19,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.547486033519553
[2023-11-19 07:54:19,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions.
[2023-11-19 07:54:19,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions.
[2023-11-19 07:54:19,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:19,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions.
[2023-11-19 07:54:19,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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)
[2023-11-19 07:54:19,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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)
[2023-11-19 07:54:19,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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)
[2023-11-19 07:54:19,990 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 294 transitions.
[2023-11-19 07:54:19,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow
[2023-11-19 07:54:19,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:54:19,996 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow
[2023-11-19 07:54:19,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37}
[2023-11-19 07:54:20,004 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places.
[2023-11-19 07:54:20,004 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow
[2023-11-19 07:54:20,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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)
[2023-11-19 07:54:20,005 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:20,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:20,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:54:20,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-19 07:54:20,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:20,007 INFO L85 PathProgramCache]: Analyzing trace with hash -224437813, now seen corresponding path program 1 times
[2023-11-19 07:54:20,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:20,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81357974]
[2023-11-19 07:54:20,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:20,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:20,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:54:20,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:20,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81357974]
[2023-11-19 07:54:20,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81357974] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:54:20,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296987065]
[2023-11-19 07:54:20,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:20,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:54:20,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:54:20,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:54:20,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:54:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:20,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:54:20,276 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:54:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:54:20,327 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:54:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:54:20,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296987065] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:54:20,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:54:20,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2023-11-19 07:54:20,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616494234]
[2023-11-19 07:54:20,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:54:20,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-19 07:54:20,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:20,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-19 07:54:20,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-11-19 07:54:20,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 179
[2023-11-19 07:54:20,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 92.57142857142857) internal successors, (648), 7 states have internal predecessors, (648), 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)
[2023-11-19 07:54:20,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:20,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 179
[2023-11-19 07:54:20,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:20,517 INFO L124 PetriNetUnfolderBase]: 37/168 cut-off events.
[2023-11-19 07:54:20,518 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:54:20,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 168 events. 37/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 263. Up to 89 conditions per place.
[2023-11-19 07:54:20,523 INFO L140 encePairwiseOnDemand]: 176/179 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions.
[2023-11-19 07:54:20,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow
[2023-11-19 07:54:20,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:54:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:54:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 569 transitions.
[2023-11-19 07:54:20,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5297951582867784
[2023-11-19 07:54:20,534 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 569 transitions.
[2023-11-19 07:54:20,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 569 transitions.
[2023-11-19 07:54:20,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:20,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 569 transitions.
[2023-11-19 07:54:20,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 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)
[2023-11-19 07:54:20,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:20,550 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:20,557 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 569 transitions.
[2023-11-19 07:54:20,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow
[2023-11-19 07:54:20,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places.
[2023-11-19 07:54:20,560 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow
[2023-11-19 07:54:20,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40}
[2023-11-19 07:54:20,561 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places.
[2023-11-19 07:54:20,563 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow
[2023-11-19 07:54:20,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 92.57142857142857) internal successors, (648), 7 states have internal predecessors, (648), 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)
[2023-11-19 07:54:20,569 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:20,569 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:20,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:54:20,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:54:20,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-19 07:54:20,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:20,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1856615740, now seen corresponding path program 2 times
[2023-11-19 07:54:20,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:20,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521647886]
[2023-11-19 07:54:20,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:20,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2023-11-19 07:54:21,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:21,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521647886]
[2023-11-19 07:54:21,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521647886] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:54:21,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:54:21,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:54:21,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602025644]
[2023-11-19 07:54:21,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:21,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:54:21,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:21,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:54:21,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:54:21,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 179
[2023-11-19 07:54:21,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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)
[2023-11-19 07:54:21,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:21,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 179
[2023-11-19 07:54:21,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:21,950 INFO L124 PetriNetUnfolderBase]: 176/425 cut-off events.
[2023-11-19 07:54:21,950 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:54:21,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 425 events. 176/425 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1796 event pairs, 82 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 808. Up to 282 conditions per place.
[2023-11-19 07:54:21,960 INFO L140 encePairwiseOnDemand]: 168/179 looper letters, 57 selfloop transitions, 22 changer transitions 0/86 dead transitions.
[2023-11-19 07:54:21,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 86 transitions, 368 flow
[2023-11-19 07:54:21,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:54:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:54:21,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions.
[2023-11-19 07:54:21,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5121042830540037
[2023-11-19 07:54:21,964 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 550 transitions.
[2023-11-19 07:54:21,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 550 transitions.
[2023-11-19 07:54:21,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:21,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 550 transitions.
[2023-11-19 07:54:21,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 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)
[2023-11-19 07:54:21,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:21,971 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:21,972 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 550 transitions.
[2023-11-19 07:54:21,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 86 transitions, 368 flow
[2023-11-19 07:54:21,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 86 transitions, 354 flow, removed 6 selfloop flow, removed 1 redundant places.
[2023-11-19 07:54:21,977 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 254 flow
[2023-11-19 07:54:21,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=57, PETRI_TRANSITIONS=61}
[2023-11-19 07:54:21,979 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places.
[2023-11-19 07:54:21,979 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 254 flow
[2023-11-19 07:54:21,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 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)
[2023-11-19 07:54:21,980 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:21,980 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:21,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:54:21,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-19 07:54:21,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:21,983 INFO L85 PathProgramCache]: Analyzing trace with hash -574703238, now seen corresponding path program 1 times
[2023-11-19 07:54:21,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:21,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596289420]
[2023-11-19 07:54:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:21,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:22,347 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2023-11-19 07:54:22,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:22,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596289420]
[2023-11-19 07:54:22,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596289420] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:54:22,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:54:22,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:54:22,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171303011]
[2023-11-19 07:54:22,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:22,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:54:22,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:22,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:54:22,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:54:22,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 179
[2023-11-19 07:54:22,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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)
[2023-11-19 07:54:22,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:22,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 179
[2023-11-19 07:54:22,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:22,756 INFO L124 PetriNetUnfolderBase]: 204/497 cut-off events.
[2023-11-19 07:54:22,756 INFO L125 PetriNetUnfolderBase]: For 119/122 co-relation queries the response was YES.
[2023-11-19 07:54:22,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 497 events. 204/497 cut-off events. For 119/122 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2305 event pairs, 76 based on Foata normal form. 0/487 useless extension candidates. Maximal degree in co-relation 1135. Up to 327 conditions per place.
[2023-11-19 07:54:22,761 INFO L140 encePairwiseOnDemand]: 168/179 looper letters, 65 selfloop transitions, 26 changer transitions 0/103 dead transitions.
[2023-11-19 07:54:22,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 103 transitions, 538 flow
[2023-11-19 07:54:22,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:54:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:54:22,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 563 transitions.
[2023-11-19 07:54:22,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5242085661080075
[2023-11-19 07:54:22,765 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 563 transitions.
[2023-11-19 07:54:22,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 563 transitions.
[2023-11-19 07:54:22,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:22,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 563 transitions.
[2023-11-19 07:54:22,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 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)
[2023-11-19 07:54:22,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:22,773 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:22,773 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 254 flow. Second operand 6 states and 563 transitions.
[2023-11-19 07:54:22,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 103 transitions, 538 flow
[2023-11-19 07:54:22,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 103 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:54:22,780 INFO L231 Difference]: Finished difference. Result has 67 places, 82 transitions, 438 flow
[2023-11-19 07:54:22,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=67, PETRI_TRANSITIONS=82}
[2023-11-19 07:54:22,781 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 28 predicate places.
[2023-11-19 07:54:22,781 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 82 transitions, 438 flow
[2023-11-19 07:54:22,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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)
[2023-11-19 07:54:22,782 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:22,782 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:22,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:54:22,783 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-19 07:54:22,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:22,783 INFO L85 PathProgramCache]: Analyzing trace with hash -555116669, now seen corresponding path program 1 times
[2023-11-19 07:54:22,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:22,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387972990]
[2023-11-19 07:54:22,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:22,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:54:22,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:22,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387972990]
[2023-11-19 07:54:22,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387972990] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:54:22,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696368683]
[2023-11-19 07:54:22,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:22,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:54:22,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:54:22,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:54:22,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 07:54:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:22,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:54:23,000 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:54:23,026 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:54:23,027 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:54:23,101 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:54:23,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696368683] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:54:23,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:54:23,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2023-11-19 07:54:23,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426310159]
[2023-11-19 07:54:23,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:54:23,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-11-19 07:54:23,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:23,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-11-19 07:54:23,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2023-11-19 07:54:23,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 179
[2023-11-19 07:54:23,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 82 transitions, 438 flow. Second operand has 13 states, 13 states have (on average 92.46153846153847) internal successors, (1202), 13 states have internal predecessors, (1202), 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)
[2023-11-19 07:54:23,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:23,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 179
[2023-11-19 07:54:23,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:23,300 INFO L124 PetriNetUnfolderBase]: 124/387 cut-off events.
[2023-11-19 07:54:23,300 INFO L125 PetriNetUnfolderBase]: For 242/249 co-relation queries the response was YES.
[2023-11-19 07:54:23,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 387 events. 124/387 cut-off events. For 242/249 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1949 event pairs, 46 based on Foata normal form. 6/385 useless extension candidates. Maximal degree in co-relation 942. Up to 152 conditions per place.
[2023-11-19 07:54:23,304 INFO L140 encePairwiseOnDemand]: 176/179 looper letters, 21 selfloop transitions, 11 changer transitions 0/88 dead transitions.
[2023-11-19 07:54:23,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 88 transitions, 538 flow
[2023-11-19 07:54:23,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-11-19 07:54:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2023-11-19 07:54:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1124 transitions.
[2023-11-19 07:54:23,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5232774674115456
[2023-11-19 07:54:23,310 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1124 transitions.
[2023-11-19 07:54:23,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1124 transitions.
[2023-11-19 07:54:23,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:23,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1124 transitions.
[2023-11-19 07:54:23,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.66666666666667) internal successors, (1124), 12 states have internal predecessors, (1124), 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)
[2023-11-19 07:54:23,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 179.0) internal successors, (2327), 13 states have internal predecessors, (2327), 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)
[2023-11-19 07:54:23,323 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 179.0) internal successors, (2327), 13 states have internal predecessors, (2327), 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)
[2023-11-19 07:54:23,323 INFO L175 Difference]: Start difference. First operand has 67 places, 82 transitions, 438 flow. Second operand 12 states and 1124 transitions.
[2023-11-19 07:54:23,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 88 transitions, 538 flow
[2023-11-19 07:54:23,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 88 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:54:23,357 INFO L231 Difference]: Finished difference. Result has 84 places, 88 transitions, 522 flow
[2023-11-19 07:54:23,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=522, PETRI_PLACES=84, PETRI_TRANSITIONS=88}
[2023-11-19 07:54:23,360 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 45 predicate places.
[2023-11-19 07:54:23,360 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 88 transitions, 522 flow
[2023-11-19 07:54:23,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 92.46153846153847) internal successors, (1202), 13 states have internal predecessors, (1202), 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)
[2023-11-19 07:54:23,361 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:23,361 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:23,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:54:23,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:54:23,582 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-19 07:54:23,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:23,583 INFO L85 PathProgramCache]: Analyzing trace with hash -206573021, now seen corresponding path program 2 times
[2023-11-19 07:54:23,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:23,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189526224]
[2023-11-19 07:54:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:23,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:24,028 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2023-11-19 07:54:24,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:24,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189526224]
[2023-11-19 07:54:24,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189526224] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:54:24,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:54:24,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:54:24,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510954602]
[2023-11-19 07:54:24,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:24,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:54:24,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:24,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:54:24,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:54:24,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 179
[2023-11-19 07:54:24,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 88 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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)
[2023-11-19 07:54:24,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:24,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 179
[2023-11-19 07:54:24,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:24,674 INFO L124 PetriNetUnfolderBase]: 323/726 cut-off events.
[2023-11-19 07:54:24,675 INFO L125 PetriNetUnfolderBase]: For 538/544 co-relation queries the response was YES.
[2023-11-19 07:54:24,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2237 conditions, 726 events. 323/726 cut-off events. For 538/544 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3345 event pairs, 129 based on Foata normal form. 0/708 useless extension candidates. Maximal degree in co-relation 2152. Up to 604 conditions per place.
[2023-11-19 07:54:24,686 INFO L140 encePairwiseOnDemand]: 165/179 looper letters, 95 selfloop transitions, 49 changer transitions 8/155 dead transitions.
[2023-11-19 07:54:24,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 155 transitions, 1098 flow
[2023-11-19 07:54:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:54:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:54:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions.
[2023-11-19 07:54:24,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49534450651769085
[2023-11-19 07:54:24,691 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions.
[2023-11-19 07:54:24,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions.
[2023-11-19 07:54:24,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:24,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions.
[2023-11-19 07:54:24,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 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)
[2023-11-19 07:54:24,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:24,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:24,699 INFO L175 Difference]: Start difference. First operand has 84 places, 88 transitions, 522 flow. Second operand 6 states and 532 transitions.
[2023-11-19 07:54:24,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 155 transitions, 1098 flow
[2023-11-19 07:54:24,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 155 transitions, 1050 flow, removed 19 selfloop flow, removed 5 redundant places.
[2023-11-19 07:54:24,712 INFO L231 Difference]: Finished difference. Result has 88 places, 131 transitions, 869 flow
[2023-11-19 07:54:24,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=88, PETRI_TRANSITIONS=131}
[2023-11-19 07:54:24,714 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 49 predicate places.
[2023-11-19 07:54:24,714 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 131 transitions, 869 flow
[2023-11-19 07:54:24,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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)
[2023-11-19 07:54:24,715 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:24,715 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:24,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-19 07:54:24,716 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-19 07:54:24,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash -888716968, now seen corresponding path program 1 times
[2023-11-19 07:54:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:24,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569920554]
[2023-11-19 07:54:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2023-11-19 07:54:25,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:25,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569920554]
[2023-11-19 07:54:25,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569920554] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:54:25,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:54:25,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:54:25,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247205515]
[2023-11-19 07:54:25,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:25,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:54:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:25,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:54:25,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:54:25,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 179
[2023-11-19 07:54:25,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 131 transitions, 869 flow. Second operand has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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)
[2023-11-19 07:54:25,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:25,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 179
[2023-11-19 07:54:25,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:25,893 INFO L124 PetriNetUnfolderBase]: 377/850 cut-off events.
[2023-11-19 07:54:25,893 INFO L125 PetriNetUnfolderBase]: For 1041/1055 co-relation queries the response was YES.
[2023-11-19 07:54:25,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3003 conditions, 850 events. 377/850 cut-off events. For 1041/1055 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4179 event pairs, 102 based on Foata normal form. 0/826 useless extension candidates. Maximal degree in co-relation 2938. Up to 659 conditions per place.
[2023-11-19 07:54:25,906 INFO L140 encePairwiseOnDemand]: 164/179 looper letters, 124 selfloop transitions, 61 changer transitions 12/202 dead transitions.
[2023-11-19 07:54:25,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 202 transitions, 1614 flow
[2023-11-19 07:54:25,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:54:25,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:54:25,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 546 transitions.
[2023-11-19 07:54:25,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5083798882681564
[2023-11-19 07:54:25,911 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 546 transitions.
[2023-11-19 07:54:25,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 546 transitions.
[2023-11-19 07:54:25,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:25,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 546 transitions.
[2023-11-19 07:54:25,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 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)
[2023-11-19 07:54:25,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:25,918 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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)
[2023-11-19 07:54:25,919 INFO L175 Difference]: Start difference. First operand has 88 places, 131 transitions, 869 flow. Second operand 6 states and 546 transitions.
[2023-11-19 07:54:25,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 202 transitions, 1614 flow
[2023-11-19 07:54:25,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 202 transitions, 1550 flow, removed 32 selfloop flow, removed 0 redundant places.
[2023-11-19 07:54:25,947 INFO L231 Difference]: Finished difference. Result has 98 places, 178 transitions, 1371 flow
[2023-11-19 07:54:25,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1371, PETRI_PLACES=98, PETRI_TRANSITIONS=178}
[2023-11-19 07:54:25,948 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 59 predicate places.
[2023-11-19 07:54:25,948 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 178 transitions, 1371 flow
[2023-11-19 07:54:25,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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)
[2023-11-19 07:54:25,949 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:25,950 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:25,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-19 07:54:25,950 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] ===
[2023-11-19 07:54:25,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:25,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1966862584, now seen corresponding path program 1 times
[2023-11-19 07:54:25,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:25,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321087349]
[2023-11-19 07:54:25,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:25,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:54:40,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:40,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321087349]
[2023-11-19 07:54:40,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321087349] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:54:40,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279639475]
[2023-11-19 07:54:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:40,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:54:40,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:54:40,529 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:54:40,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0760a107-93ee-4837-ab0a-0e34d40a97c5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-19 07:54:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:40,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 53 conjunts are in the unsatisfiable core
[2023-11-19 07:54:40,671 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:54:40,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2023-11-19 07:54:40,996 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size
[2023-11-19 07:54:40,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15
[2023-11-19 07:54:41,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-11-19 07:54:41,198 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 11
[2023-11-19 07:54:41,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2023-11-19 07:54:41,318 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,320 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35
[2023-11-19 07:54:41,447 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,449 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,450 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47
[2023-11-19 07:54:41,606 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,612 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,614 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,616 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62
[2023-11-19 07:54:41,969 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,971 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,973 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,976 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,981 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,983 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,985 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,986 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,990 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:41,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 89
[2023-11-19 07:54:42,185 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,188 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,190 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,192 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,194 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,196 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,198 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,200 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,202 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,205 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,206 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,208 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,210 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,211 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,213 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:42,216 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-11-19 07:54:42,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 101
[2023-11-19 07:54:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:54:48,539 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:54:55,493 INFO L349 Elim1Store]: treesize reduction 35, result has 46.2 percent of original size
[2023-11-19 07:54:55,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 3215 treesize of output 2231
[2023-11-19 07:54:55,514 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:55,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 79
[2023-11-19 07:54:55,525 INFO L349 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size
[2023-11-19 07:54:55,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 339
[2023-11-19 07:54:55,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4
[2023-11-19 07:54:55,618 INFO L349 Elim1Store]: treesize reduction 35, result has 46.2 percent of original size
[2023-11-19 07:54:55,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 2576 treesize of output 1819
[2023-11-19 07:54:55,634 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:55,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 81
[2023-11-19 07:54:55,638 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:54:55,640 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:54:55,649 INFO L349 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size
[2023-11-19 07:54:55,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 53
[2023-11-19 07:54:55,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4
[2023-11-19 07:54:55,708 INFO L349 Elim1Store]: treesize reduction 35, result has 46.2 percent of original size
[2023-11-19 07:54:55,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 2117 treesize of output 1513
[2023-11-19 07:54:55,722 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:55,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52
[2023-11-19 07:54:55,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4
[2023-11-19 07:54:55,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28
[2023-11-19 07:54:55,797 INFO L349 Elim1Store]: treesize reduction 35, result has 46.2 percent of original size
[2023-11-19 07:54:55,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 2027 treesize of output 1418
[2023-11-19 07:54:55,813 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:54:55,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 81
[2023-11-19 07:54:55,817 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:54:55,818 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:54:55,820 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:54:55,821 INFO L173 IndexEqualityManager]: detected equality via solver
[2023-11-19 07:54:55,827 INFO L349 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size
[2023-11-19 07:54:55,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 32
[2023-11-19 07:54:55,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4
[2023-11-19 07:54:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2023-11-19 07:54:56,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279639475] provided 1 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:54:56,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2023-11-19 07:54:56,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19, 19] total 49
[2023-11-19 07:54:56,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452491229]
[2023-11-19 07:54:56,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:56,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-11-19 07:54:56,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-11-19 07:54:56,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=2185, Unknown=4, NotChecked=0, Total=2450
[2023-11-19 07:54:59,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]