./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
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_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/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_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:53:33,171 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:53:33,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2023-11-19 07:53:33,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:53:33,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:53:33,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:53:33,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:53:33,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:53:33,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:53:33,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:53:33,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:53:33,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:53:33,283 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:53:33,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:53:33,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:53:33,287 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:53:33,288 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:53:33,292 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:53:33,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:53:33,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:53:33,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:53:33,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:53:33,296 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:53:33,296 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:53:33,297 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:53:33,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:53:33,298 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:53:33,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:53:33,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:53:33,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:53:33,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:53:33,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:53:33,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:53:33,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:53:33,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:53:33,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:53:33,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:53:33,304 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:53:33,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:53:33,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:53:33,305 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:53:33,305 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_17c5f254-1ed8-4ac0-b636-916dc66bc55f/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe
[2023-11-19 07:53:33,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:53:33,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:53:33,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:53:33,667 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:53:33,668 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:53:33,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i
[2023-11-19 07:53:36,849 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:53:37,229 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:53:37,233 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i
[2023-11-19 07:53:37,261 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/data/a40988ea8/8ca924cfed1e424f8053de614430963a/FLAG67495bb10
[2023-11-19 07:53:37,282 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/data/a40988ea8/8ca924cfed1e424f8053de614430963a
[2023-11-19 07:53:37,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:53:37,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:53:37,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:53:37,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:53:37,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:53:37,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d221430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37, skipping insertion in model container
[2023-11-19 07:53:37,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,377 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:53:37,979 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:53:38,011 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:53:38,121 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:53:38,214 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:53:38,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38 WrapperNode
[2023-11-19 07:53:38,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:53:38,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:53:38,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:53:38,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:53:38,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,326 INFO L138 Inliner]: procedures = 270, calls = 42, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 217
[2023-11-19 07:53:38,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:53:38,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:53:38,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:53:38,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:53:38,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,388 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:53:38,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:53:38,418 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:53:38,418 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:53:38,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (1/1) ...
[2023-11-19 07:53:38,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:53:38,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:53:38,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:53:38,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:53:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:53:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:53:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:53:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:53:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-11-19 07:53:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:53:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2023-11-19 07:53:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2023-11-19 07:53:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:53:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:53:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:53:38,502 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 07:53:38,684 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:53:38,687 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:53:39,208 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:53:39,220 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:53:39,221 INFO L302 CfgBuilder]: Removed 23 assume(true) statements.
[2023-11-19 07:53:39,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:39 BoogieIcfgContainer
[2023-11-19 07:53:39,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:53:39,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:53:39,230 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:53:39,233 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:53:39,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:37" (1/3) ...
[2023-11-19 07:53:39,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e70fca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:39, skipping insertion in model container
[2023-11-19 07:53:39,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:38" (2/3) ...
[2023-11-19 07:53:39,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e70fca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:39, skipping insertion in model container
[2023-11-19 07:53:39,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:39" (3/3) ...
[2023-11-19 07:53:39,237 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i
[2023-11-19 07:53:39,247 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:53:39,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:53:39,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations.
[2023-11-19 07:53:39,260 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:53:39,374 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2023-11-19 07:53:39,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 243 transitions, 493 flow
[2023-11-19 07:53:39,621 INFO L124 PetriNetUnfolderBase]: 48/330 cut-off events.
[2023-11-19 07:53:39,621 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-11-19 07:53:39,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 330 events. 48/330 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1117 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 187. Up to 8 conditions per place.
[2023-11-19 07:53:39,633 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 243 transitions, 493 flow
[2023-11-19 07:53:39,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 240 transitions, 487 flow
[2023-11-19 07:53:39,660 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:53:39,677 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 240 transitions, 487 flow
[2023-11-19 07:53:39,682 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 240 transitions, 487 flow
[2023-11-19 07:53:39,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 240 transitions, 487 flow
[2023-11-19 07:53:39,800 INFO L124 PetriNetUnfolderBase]: 47/327 cut-off events.
[2023-11-19 07:53:39,800 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-11-19 07:53:39,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 327 events. 47/327 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1114 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 187. Up to 8 conditions per place.
[2023-11-19 07:53:39,821 INFO L119 LiptonReduction]: Number of co-enabled transitions 17654
[2023-11-19 07:53:44,770 INFO L134 LiptonReduction]: Checked pairs total: 28709
[2023-11-19 07:53:44,770 INFO L136 LiptonReduction]: Total number of compositions: 237
[2023-11-19 07:53:44,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:53:44,803 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;@65dda30c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:53:44,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations.
[2023-11-19 07:53:44,806 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:53:44,807 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events.
[2023-11-19 07:53:44,807 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:53:44,807 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:53:44,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-19 07:53:44,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2023-11-19 07:53:44,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash 30820, now seen corresponding path program 1 times
[2023-11-19 07:53:44,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:44,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180333145]
[2023-11-19 07:53:44,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:44,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:45,104 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 07:53:45,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:53:45,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180333145]
[2023-11-19 07:53:45,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180333145] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:53:45,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:53:45,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:53:45,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167297632]
[2023-11-19 07:53:45,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:53:45,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:53:45,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:53:45,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:53:45,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:53:45,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 480
[2023-11-19 07:53:45,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 82 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 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 07:53:45,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:53:45,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 480
[2023-11-19 07:53:45,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:53:45,526 INFO L124 PetriNetUnfolderBase]: 501/1049 cut-off events.
[2023-11-19 07:53:45,526 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-11-19 07:53:45,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2040 conditions, 1049 events. 501/1049 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5713 event pairs, 456 based on Foata normal form. 113/844 useless extension candidates. Maximal degree in co-relation 1969. Up to 985 conditions per place.
[2023-11-19 07:53:45,536 INFO L140 encePairwiseOnDemand]: 451/480 looper letters, 50 selfloop transitions, 2 changer transitions 0/58 dead transitions.
[2023-11-19 07:53:45,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 58 transitions, 227 flow
[2023-11-19 07:53:45,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:53:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:53:45,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions.
[2023-11-19 07:53:45,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48055555555555557
[2023-11-19 07:53:45,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 692 transitions.
[2023-11-19 07:53:45,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 692 transitions.
[2023-11-19 07:53:45,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:53:45,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 692 transitions.
[2023-11-19 07:53:45,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 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 07:53:45,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 480.0) internal successors, (1920), 4 states have internal predecessors, (1920), 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 07:53:45,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 480.0) internal successors, (1920), 4 states have internal predecessors, (1920), 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 07:53:45,593 INFO L175 Difference]: Start difference. First operand has 60 places, 82 transitions, 171 flow. Second operand 3 states and 692 transitions.
[2023-11-19 07:53:45,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 58 transitions, 227 flow
[2023-11-19 07:53:45,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 58 transitions, 227 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:53:45,602 INFO L231 Difference]: Finished difference. Result has 60 places, 58 transitions, 135 flow
[2023-11-19 07:53:45,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=480, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=60, PETRI_TRANSITIONS=58}
[2023-11-19 07:53:45,609 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 0 predicate places.
[2023-11-19 07:53:45,610 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 58 transitions, 135 flow
[2023-11-19 07:53:45,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 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 07:53:45,611 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:53:45,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-11-19 07:53:45,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:53:45,612 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2023-11-19 07:53:45,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:45,613 INFO L85 PathProgramCache]: Analyzing trace with hash 957596, now seen corresponding path program 1 times
[2023-11-19 07:53:45,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:45,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999285144]
[2023-11-19 07:53:45,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:45,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:53:45,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:53:45,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999285144]
[2023-11-19 07:53:45,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999285144] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:53:45,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:53:45,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:53:45,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001891877]
[2023-11-19 07:53:45,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:53:45,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:53:45,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:53:45,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:53:45,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:53:45,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 480
[2023-11-19 07:53:45,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 58 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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 07:53:45,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:53:45,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 480
[2023-11-19 07:53:45,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:53:46,023 INFO L124 PetriNetUnfolderBase]: 501/1048 cut-off events.
[2023-11-19 07:53:46,023 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-11-19 07:53:46,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 1048 events. 501/1048 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5736 event pairs, 456 based on Foata normal form. 0/731 useless extension candidates. Maximal degree in co-relation 2033. Up to 982 conditions per place.
[2023-11-19 07:53:46,032 INFO L140 encePairwiseOnDemand]: 477/480 looper letters, 49 selfloop transitions, 2 changer transitions 0/57 dead transitions.
[2023-11-19 07:53:46,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 233 flow
[2023-11-19 07:53:46,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:53:46,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:53:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions.
[2023-11-19 07:53:46,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46041666666666664
[2023-11-19 07:53:46,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 663 transitions.
[2023-11-19 07:53:46,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 663 transitions.
[2023-11-19 07:53:46,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:53:46,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 663 transitions.
[2023-11-19 07:53:46,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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 07:53:46,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 480.0) internal successors, (1920), 4 states have internal predecessors, (1920), 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 07:53:46,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 480.0) internal successors, (1920), 4 states have internal predecessors, (1920), 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 07:53:46,046 INFO L175 Difference]: Start difference. First operand has 60 places, 58 transitions, 135 flow. Second operand 3 states and 663 transitions.
[2023-11-19 07:53:46,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 233 flow
[2023-11-19 07:53:46,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 57 transitions, 229 flow, removed 1 selfloop flow, removed 1 redundant places.
[2023-11-19 07:53:46,053 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 131 flow
[2023-11-19 07:53:46,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=480, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=60, PETRI_TRANSITIONS=57}
[2023-11-19 07:53:46,055 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 0 predicate places.
[2023-11-19 07:53:46,056 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 131 flow
[2023-11-19 07:53:46,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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 07:53:46,057 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:53:46,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-11-19 07:53:46,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:53:46,059 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2023-11-19 07:53:46,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:46,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1534174658, now seen corresponding path program 1 times
[2023-11-19 07:53:46,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:46,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998152414]
[2023-11-19 07:53:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:46,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:46,203 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 07:53:46,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:53:46,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998152414]
[2023-11-19 07:53:46,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998152414] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:53:46,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838135997]
[2023-11-19 07:53:46,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:46,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:53:46,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:53:46,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:53:46,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:53:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:46,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:53:46,312 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:53:46,373 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 07:53:46,375 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:53:46,397 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 07:53:46,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838135997] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:53:46,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:53:46,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2023-11-19 07:53:46,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146498655]
[2023-11-19 07:53:46,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:53:46,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-19 07:53:46,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:53:46,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-19 07:53:46,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-11-19 07:53:46,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 480
[2023-11-19 07:53:46,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 131 flow. Second operand has 7 states, 7 states have (on average 204.57142857142858) internal successors, (1432), 7 states have internal predecessors, (1432), 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 07:53:46,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:53:46,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 480
[2023-11-19 07:53:46,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:53:46,709 INFO L124 PetriNetUnfolderBase]: 501/1051 cut-off events.
[2023-11-19 07:53:46,709 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:53:46,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2054 conditions, 1051 events. 501/1051 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5694 event pairs, 456 based on Foata normal form. 3/738 useless extension candidates. Maximal degree in co-relation 2027. Up to 984 conditions per place.
[2023-11-19 07:53:46,718 INFO L140 encePairwiseOnDemand]: 477/480 looper letters, 49 selfloop transitions, 5 changer transitions 0/60 dead transitions.
[2023-11-19 07:53:46,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 60 transitions, 251 flow
[2023-11-19 07:53:46,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:53:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:53:46,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1275 transitions.
[2023-11-19 07:53:46,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4427083333333333
[2023-11-19 07:53:46,724 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1275 transitions.
[2023-11-19 07:53:46,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1275 transitions.
[2023-11-19 07:53:46,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:53:46,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1275 transitions.
[2023-11-19 07:53:46,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 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 07:53:46,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 480.0) internal successors, (3360), 7 states have internal predecessors, (3360), 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 07:53:46,741 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 480.0) internal successors, (3360), 7 states have internal predecessors, (3360), 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 07:53:46,741 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 131 flow. Second operand 6 states and 1275 transitions.
[2023-11-19 07:53:46,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 60 transitions, 251 flow
[2023-11-19 07:53:46,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 247 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:53:46,745 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 163 flow
[2023-11-19 07:53:46,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=480, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=66, PETRI_TRANSITIONS=60}
[2023-11-19 07:53:46,746 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 6 predicate places.
[2023-11-19 07:53:46,746 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 163 flow
[2023-11-19 07:53:46,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 204.57142857142858) internal successors, (1432), 7 states have internal predecessors, (1432), 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 07:53:46,748 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:53:46,748 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1]
[2023-11-19 07:53:46,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:53:46,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:53:46,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2023-11-19 07:53:46,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:46,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1023968394, now seen corresponding path program 2 times
[2023-11-19 07:53:46,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:46,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256605320]
[2023-11-19 07:53:46,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:46,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:47,083 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 07:53:47,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:53:47,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256605320]
[2023-11-19 07:53:47,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256605320] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:53:47,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:53:47,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:53:47,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288852839]
[2023-11-19 07:53:47,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:53:47,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:53:47,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:53:47,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:53:47,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:53:47,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 480
[2023-11-19 07:53:47,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 07:53:47,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:53:47,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 480
[2023-11-19 07:53:47,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:53:47,322 INFO L124 PetriNetUnfolderBase]: 440/971 cut-off events.
[2023-11-19 07:53:47,323 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2023-11-19 07:53:47,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1889 conditions, 971 events. 440/971 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5549 event pairs, 0 based on Foata normal form. 0/715 useless extension candidates. Maximal degree in co-relation 1855. Up to 868 conditions per place.
[2023-11-19 07:53:47,330 INFO L140 encePairwiseOnDemand]: 475/480 looper letters, 70 selfloop transitions, 2 changer transitions 0/78 dead transitions.
[2023-11-19 07:53:47,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 78 transitions, 343 flow
[2023-11-19 07:53:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:53:47,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:53:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions.
[2023-11-19 07:53:47,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47430555555555554
[2023-11-19 07:53:47,334 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions.
[2023-11-19 07:53:47,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions.
[2023-11-19 07:53:47,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:53:47,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions.
[2023-11-19 07:53:47,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:53:47,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 480.0) internal successors, (1920), 4 states have internal predecessors, (1920), 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 07:53:47,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 480.0) internal successors, (1920), 4 states have internal predecessors, (1920), 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 07:53:47,344 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 163 flow. Second operand 3 states and 683 transitions.
[2023-11-19 07:53:47,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 78 transitions, 343 flow
[2023-11-19 07:53:47,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 78 transitions, 329 flow, removed 6 selfloop flow, removed 1 redundant places.
[2023-11-19 07:53:47,349 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 153 flow
[2023-11-19 07:53:47,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=480, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=66, PETRI_TRANSITIONS=58}
[2023-11-19 07:53:47,350 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 6 predicate places.
[2023-11-19 07:53:47,350 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 153 flow
[2023-11-19 07:53:47,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 07:53:47,351 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:53:47,351 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1]
[2023-11-19 07:53:47,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:53:47,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2023-11-19 07:53:47,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:47,353 INFO L85 PathProgramCache]: Analyzing trace with hash -486054568, now seen corresponding path program 1 times
[2023-11-19 07:53:47,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:47,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438976766]
[2023-11-19 07:53:47,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:47,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-19 07:53:47,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:53:47,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438976766]
[2023-11-19 07:53:47,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438976766] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:53:47,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521602641]
[2023-11-19 07:53:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:47,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:53:47,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:53:47,485 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:53:47,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 07:53:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:47,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:53:47,577 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:53:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-19 07:53:47,600 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:53:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-19 07:53:47,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521602641] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:53:47,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:53:47,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2023-11-19 07:53:47,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063420102]
[2023-11-19 07:53:47,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:53:47,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-11-19 07:53:47,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:53:47,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-11-19 07:53:47,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2023-11-19 07:53:47,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 480
[2023-11-19 07:53:47,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 153 flow. Second operand has 13 states, 13 states have (on average 204.30769230769232) internal successors, (2656), 13 states have internal predecessors, (2656), 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 07:53:47,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:53:47,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 480
[2023-11-19 07:53:47,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:53:48,009 INFO L124 PetriNetUnfolderBase]: 460/953 cut-off events.
[2023-11-19 07:53:48,009 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES.
[2023-11-19 07:53:48,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 953 events. 460/953 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4906 event pairs, 418 based on Foata normal form. 6/717 useless extension candidates. Maximal degree in co-relation 1892. Up to 886 conditions per place.
[2023-11-19 07:53:48,017 INFO L140 encePairwiseOnDemand]: 477/480 looper letters, 47 selfloop transitions, 11 changer transitions 0/64 dead transitions.
[2023-11-19 07:53:48,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 64 transitions, 305 flow
[2023-11-19 07:53:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-11-19 07:53:48,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2023-11-19 07:53:48,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2500 transitions.
[2023-11-19 07:53:48,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4340277777777778
[2023-11-19 07:53:48,027 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2500 transitions.
[2023-11-19 07:53:48,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2500 transitions.
[2023-11-19 07:53:48,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:53:48,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2500 transitions.
[2023-11-19 07:53:48,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 208.33333333333334) internal successors, (2500), 12 states have internal predecessors, (2500), 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 07:53:48,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 480.0) internal successors, (6240), 13 states have internal predecessors, (6240), 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 07:53:48,053 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 480.0) internal successors, (6240), 13 states have internal predecessors, (6240), 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 07:53:48,054 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 153 flow. Second operand 12 states and 2500 transitions.
[2023-11-19 07:53:48,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 64 transitions, 305 flow
[2023-11-19 07:53:48,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 64 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:53:48,058 INFO L231 Difference]: Finished difference. Result has 81 places, 64 transitions, 233 flow
[2023-11-19 07:53:48,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=480, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=233, PETRI_PLACES=81, PETRI_TRANSITIONS=64}
[2023-11-19 07:53:48,059 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 21 predicate places.
[2023-11-19 07:53:48,059 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 64 transitions, 233 flow
[2023-11-19 07:53:48,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 204.30769230769232) internal successors, (2656), 13 states have internal predecessors, (2656), 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 07:53:48,061 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:53:48,061 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1]
[2023-11-19 07:53:48,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-11-19 07:53:48,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:53:48,276 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2023-11-19 07:53:48,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash -194334632, now seen corresponding path program 2 times
[2023-11-19 07:53:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180420116]
[2023-11-19 07:53:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:48,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:48,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:53:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:48,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:53:48,371 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:53:48,372 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining)
[2023-11-19 07:53:48,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining)
[2023-11-19 07:53:48,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining)
[2023-11-19 07:53:48,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining)
[2023-11-19 07:53:48,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining)
[2023-11-19 07:53:48,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining)
[2023-11-19 07:53:48,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining)
[2023-11-19 07:53:48,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining)
[2023-11-19 07:53:48,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining)
[2023-11-19 07:53:48,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining)
[2023-11-19 07:53:48,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining)
[2023-11-19 07:53:48,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining)
[2023-11-19 07:53:48,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining)
[2023-11-19 07:53:48,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining)
[2023-11-19 07:53:48,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining)
[2023-11-19 07:53:48,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining)
[2023-11-19 07:53:48,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining)
[2023-11-19 07:53:48,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining)
[2023-11-19 07:53:48,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining)
[2023-11-19 07:53:48,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining)
[2023-11-19 07:53:48,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining)
[2023-11-19 07:53:48,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining)
[2023-11-19 07:53:48,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining)
[2023-11-19 07:53:48,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-19 07:53:48,397 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1]
[2023-11-19 07:53:48,400 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-19 07:53:48,400 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-11-19 07:53:48,445 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-11-19 07:53:48,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 336 transitions, 688 flow
[2023-11-19 07:53:48,549 INFO L124 PetriNetUnfolderBase]: 80/548 cut-off events.
[2023-11-19 07:53:48,550 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES.
[2023-11-19 07:53:48,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 548 events. 80/548 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2335 event pairs, 0 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 332. Up to 12 conditions per place.
[2023-11-19 07:53:48,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 336 transitions, 688 flow
[2023-11-19 07:53:48,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 336 transitions, 688 flow
[2023-11-19 07:53:48,564 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:53:48,565 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 336 transitions, 688 flow
[2023-11-19 07:53:48,565 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 336 transitions, 688 flow
[2023-11-19 07:53:48,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 336 transitions, 688 flow
[2023-11-19 07:53:48,660 INFO L124 PetriNetUnfolderBase]: 80/548 cut-off events.
[2023-11-19 07:53:48,661 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES.
[2023-11-19 07:53:48,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 548 events. 80/548 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2335 event pairs, 0 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 332. Up to 12 conditions per place.
[2023-11-19 07:53:48,703 INFO L119 LiptonReduction]: Number of co-enabled transitions 55328
[2023-11-19 07:53:54,498 INFO L134 LiptonReduction]: Checked pairs total: 92804
[2023-11-19 07:53:54,498 INFO L136 LiptonReduction]: Total number of compositions: 326
[2023-11-19 07:53:54,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:53:54,503 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;@65dda30c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:53:54,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations.
[2023-11-19 07:53:54,504 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:53:54,505 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events.
[2023-11-19 07:53:54,505 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:53:54,505 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:53:54,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-19 07:53:54,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:53:54,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:54,506 INFO L85 PathProgramCache]: Analyzing trace with hash 54810, now seen corresponding path program 1 times
[2023-11-19 07:53:54,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:54,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075678867]
[2023-11-19 07:53:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:54,532 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 07:53:54,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:53:54,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075678867]
[2023-11-19 07:53:54,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075678867] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:53:54,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:53:54,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:53:54,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436941991]
[2023-11-19 07:53:54,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:53:54,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:53:54,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:53:54,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:53:54,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:53:54,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 662
[2023-11-19 07:53:54,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 121 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 281.6666666666667) internal successors, (845), 3 states have internal predecessors, (845), 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 07:53:54,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:53:54,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 662
[2023-11-19 07:53:54,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:53:58,399 INFO L124 PetriNetUnfolderBase]: 19249/29724 cut-off events.
[2023-11-19 07:53:58,399 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES.
[2023-11-19 07:53:58,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58294 conditions, 29724 events. 19249/29724 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 1066. Compared 211706 event pairs, 18264 based on Foata normal form. 3746/24642 useless extension candidates. Maximal degree in co-relation 34888. Up to 28466 conditions per place.
[2023-11-19 07:53:58,750 INFO L140 encePairwiseOnDemand]: 620/662 looper letters, 71 selfloop transitions, 2 changer transitions 0/84 dead transitions.
[2023-11-19 07:53:58,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 84 transitions, 330 flow
[2023-11-19 07:53:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:53:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:53:58,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 957 transitions.
[2023-11-19 07:53:58,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4818731117824773
[2023-11-19 07:53:58,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 957 transitions.
[2023-11-19 07:53:58,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 957 transitions.
[2023-11-19 07:53:58,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:53:58,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 957 transitions.
[2023-11-19 07:53:58,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 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 07:53:58,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 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 07:53:58,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 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 07:53:58,766 INFO L175 Difference]: Start difference. First operand has 87 places, 121 transitions, 258 flow. Second operand 3 states and 957 transitions.
[2023-11-19 07:53:58,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 84 transitions, 330 flow
[2023-11-19 07:53:58,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 84 transitions, 330 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:53:58,772 INFO L231 Difference]: Finished difference. Result has 85 places, 84 transitions, 196 flow
[2023-11-19 07:53:58,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=85, PETRI_TRANSITIONS=84}
[2023-11-19 07:53:58,775 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -2 predicate places.
[2023-11-19 07:53:58,775 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 84 transitions, 196 flow
[2023-11-19 07:53:58,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 281.6666666666667) internal successors, (845), 3 states have internal predecessors, (845), 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 07:53:58,776 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:53:58,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-11-19 07:53:58,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-19 07:53:58,776 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:53:58,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1702243, now seen corresponding path program 1 times
[2023-11-19 07:53:58,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:58,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805605633]
[2023-11-19 07:53:58,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:58,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:58,818 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 07:53:58,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:53:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805605633]
[2023-11-19 07:53:58,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805605633] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:53:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101338361]
[2023-11-19 07:53:58,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:58,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:53:58,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:53:58,820 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:53:58,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-19 07:53:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:53:58,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:53:58,913 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:53:58,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:53:58,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:53:58,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101338361] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:53:58,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:53:58,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3
[2023-11-19 07:53:58,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270780884]
[2023-11-19 07:53:58,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:53:58,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:53:58,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:53:58,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:53:58,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:53:58,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 662
[2023-11-19 07:53:58,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 281.75) internal successors, (1127), 4 states have internal predecessors, (1127), 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 07:53:58,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:53:58,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 662
[2023-11-19 07:53:58,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:01,794 INFO L124 PetriNetUnfolderBase]: 19249/29723 cut-off events.
[2023-11-19 07:54:01,794 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES.
[2023-11-19 07:54:01,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58299 conditions, 29723 events. 19249/29723 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 1066. Compared 211634 event pairs, 18264 based on Foata normal form. 0/20896 useless extension candidates. Maximal degree in co-relation 58286. Up to 28463 conditions per place.
[2023-11-19 07:54:01,979 INFO L140 encePairwiseOnDemand]: 658/662 looper letters, 69 selfloop transitions, 3 changer transitions 0/83 dead transitions.
[2023-11-19 07:54:01,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 83 transitions, 336 flow
[2023-11-19 07:54:01,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:54:01,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:54:01,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1197 transitions.
[2023-11-19 07:54:01,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4520392749244713
[2023-11-19 07:54:01,986 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1197 transitions.
[2023-11-19 07:54:01,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1197 transitions.
[2023-11-19 07:54:01,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:01,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1197 transitions.
[2023-11-19 07:54:01,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 299.25) internal successors, (1197), 4 states have internal predecessors, (1197), 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 07:54:01,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 662.0) internal successors, (3310), 5 states have internal predecessors, (3310), 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 07:54:01,998 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 662.0) internal successors, (3310), 5 states have internal predecessors, (3310), 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 07:54:01,998 INFO L175 Difference]: Start difference. First operand has 85 places, 84 transitions, 196 flow. Second operand 4 states and 1197 transitions.
[2023-11-19 07:54:01,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 83 transitions, 336 flow
[2023-11-19 07:54:02,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 83 transitions, 332 flow, removed 1 selfloop flow, removed 1 redundant places.
[2023-11-19 07:54:02,003 INFO L231 Difference]: Finished difference. Result has 86 places, 83 transitions, 194 flow
[2023-11-19 07:54:02,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=194, PETRI_PLACES=86, PETRI_TRANSITIONS=83}
[2023-11-19 07:54:02,005 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -1 predicate places.
[2023-11-19 07:54:02,005 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 83 transitions, 194 flow
[2023-11-19 07:54:02,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 281.75) internal successors, (1127), 4 states have internal predecessors, (1127), 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 07:54:02,006 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:02,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:02,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:54:02,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:54:02,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:54:02,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:02,229 INFO L85 PathProgramCache]: Analyzing trace with hash 219704150, now seen corresponding path program 1 times
[2023-11-19 07:54:02,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:02,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951594175]
[2023-11-19 07:54:02,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:02,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:02,301 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 07:54:02,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:02,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951594175]
[2023-11-19 07:54:02,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951594175] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:54:02,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165345222]
[2023-11-19 07:54:02,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:02,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:54:02,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:54:02,303 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:54:02,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-19 07:54:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:02,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:54:02,401 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:54:02,416 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 07:54:02,416 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:54:02,432 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 07:54:02,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165345222] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:54:02,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:54:02,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2023-11-19 07:54:02,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518583244]
[2023-11-19 07:54:02,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:54:02,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-19 07:54:02,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:02,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-19 07:54:02,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-11-19 07:54:02,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 662
[2023-11-19 07:54:02,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 194 flow. Second operand has 7 states, 7 states have (on average 281.57142857142856) internal successors, (1971), 7 states have internal predecessors, (1971), 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 07:54:02,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:02,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 662
[2023-11-19 07:54:02,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:05,300 INFO L124 PetriNetUnfolderBase]: 19249/29726 cut-off events.
[2023-11-19 07:54:05,300 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES.
[2023-11-19 07:54:05,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58309 conditions, 29726 events. 19249/29726 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 1066. Compared 211669 event pairs, 18264 based on Foata normal form. 3/20903 useless extension candidates. Maximal degree in co-relation 58280. Up to 28465 conditions per place.
[2023-11-19 07:54:05,459 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 70 selfloop transitions, 5 changer transitions 0/86 dead transitions.
[2023-11-19 07:54:05,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 86 transitions, 356 flow
[2023-11-19 07:54:05,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:54:05,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:54:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1758 transitions.
[2023-11-19 07:54:05,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4425981873111782
[2023-11-19 07:54:05,467 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1758 transitions.
[2023-11-19 07:54:05,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1758 transitions.
[2023-11-19 07:54:05,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:05,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1758 transitions.
[2023-11-19 07:54:05,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 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 07:54:05,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 662.0) internal successors, (4634), 7 states have internal predecessors, (4634), 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 07:54:05,486 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 662.0) internal successors, (4634), 7 states have internal predecessors, (4634), 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 07:54:05,486 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 194 flow. Second operand 6 states and 1758 transitions.
[2023-11-19 07:54:05,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 86 transitions, 356 flow
[2023-11-19 07:54:05,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 86 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:54:05,490 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 226 flow
[2023-11-19 07:54:05,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=226, PETRI_PLACES=92, PETRI_TRANSITIONS=86}
[2023-11-19 07:54:05,494 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places.
[2023-11-19 07:54:05,494 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 226 flow
[2023-11-19 07:54:05,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 281.57142857142856) internal successors, (1971), 7 states have internal predecessors, (1971), 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 07:54:05,496 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:05,496 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:05,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2023-11-19 07:54:05,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8
[2023-11-19 07:54:05,718 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:54:05,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:05,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1912078645, now seen corresponding path program 1 times
[2023-11-19 07:54:05,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:05,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935383295]
[2023-11-19 07:54:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:05,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:05,775 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 07:54:05,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:05,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935383295]
[2023-11-19 07:54:05,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935383295] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:54:05,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:54:05,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:54:05,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81015468]
[2023-11-19 07:54:05,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:05,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:54:05,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:05,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:54:05,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:54:05,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 662
[2023-11-19 07:54:05,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 07:54:05,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:05,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 662
[2023-11-19 07:54:05,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:08,523 INFO L124 PetriNetUnfolderBase]: 19029/29560 cut-off events.
[2023-11-19 07:54:08,523 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES.
[2023-11-19 07:54:08,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58064 conditions, 29560 events. 19029/29560 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 213893 event pairs, 8778 based on Foata normal form. 0/20833 useless extension candidates. Maximal degree in co-relation 58028. Up to 28356 conditions per place.
[2023-11-19 07:54:08,682 INFO L140 encePairwiseOnDemand]: 657/662 looper letters, 93 selfloop transitions, 2 changer transitions 0/106 dead transitions.
[2023-11-19 07:54:08,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 106 transitions, 456 flow
[2023-11-19 07:54:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:54:08,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:54:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions.
[2023-11-19 07:54:08,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47180261832829806
[2023-11-19 07:54:08,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 937 transitions.
[2023-11-19 07:54:08,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 937 transitions.
[2023-11-19 07:54:08,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:08,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 937 transitions.
[2023-11-19 07:54:08,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.3333333333333) internal successors, (937), 3 states have internal predecessors, (937), 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 07:54:08,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 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 07:54:08,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 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 07:54:08,729 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 226 flow. Second operand 3 states and 937 transitions.
[2023-11-19 07:54:08,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 106 transitions, 456 flow
[2023-11-19 07:54:08,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 106 transitions, 442 flow, removed 6 selfloop flow, removed 1 redundant places.
[2023-11-19 07:54:08,741 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 228 flow
[2023-11-19 07:54:08,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=94, PETRI_TRANSITIONS=87}
[2023-11-19 07:54:08,742 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 7 predicate places.
[2023-11-19 07:54:08,742 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 228 flow
[2023-11-19 07:54:08,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 07:54:08,743 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:08,743 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:08,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-19 07:54:08,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:54:08,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:08,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2028451607, now seen corresponding path program 1 times
[2023-11-19 07:54:08,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:08,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662450552]
[2023-11-19 07:54:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:08,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:08,855 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 07:54:08,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:08,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662450552]
[2023-11-19 07:54:08,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662450552] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:54:08,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910526569]
[2023-11-19 07:54:08,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:08,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:54:08,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:54:08,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:54:08,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-19 07:54:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:08,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:54:08,965 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:54:08,986 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 07:54:08,987 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:54:09,049 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 07:54:09,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910526569] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:54:09,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:54:09,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2023-11-19 07:54:09,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949054503]
[2023-11-19 07:54:09,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:54:09,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-11-19 07:54:09,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:09,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-11-19 07:54:09,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2023-11-19 07:54:09,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 662
[2023-11-19 07:54:09,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 228 flow. Second operand has 13 states, 13 states have (on average 281.53846153846155) internal successors, (3660), 13 states have internal predecessors, (3660), 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 07:54:09,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:09,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 662
[2023-11-19 07:54:09,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:12,056 INFO L124 PetriNetUnfolderBase]: 19428/29764 cut-off events.
[2023-11-19 07:54:12,056 INFO L125 PetriNetUnfolderBase]: For 1027/1027 co-relation queries the response was YES.
[2023-11-19 07:54:12,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59859 conditions, 29764 events. 19428/29764 cut-off events. For 1027/1027 co-relation queries the response was YES. Maximal size of possible extension queue 1059. Compared 208736 event pairs, 18228 based on Foata normal form. 6/21414 useless extension candidates. Maximal degree in co-relation 59804. Up to 28373 conditions per place.
[2023-11-19 07:54:12,450 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 71 selfloop transitions, 11 changer transitions 0/93 dead transitions.
[2023-11-19 07:54:12,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 93 transitions, 428 flow
[2023-11-19 07:54:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-11-19 07:54:12,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2023-11-19 07:54:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3447 transitions.
[2023-11-19 07:54:12,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43391238670694865
[2023-11-19 07:54:12,465 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3447 transitions.
[2023-11-19 07:54:12,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3447 transitions.
[2023-11-19 07:54:12,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:12,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3447 transitions.
[2023-11-19 07:54:12,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 287.25) internal successors, (3447), 12 states have internal predecessors, (3447), 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 07:54:12,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 662.0) internal successors, (8606), 13 states have internal predecessors, (8606), 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 07:54:12,498 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 662.0) internal successors, (8606), 13 states have internal predecessors, (8606), 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 07:54:12,499 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 228 flow. Second operand 12 states and 3447 transitions.
[2023-11-19 07:54:12,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 93 transitions, 428 flow
[2023-11-19 07:54:12,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 93 transitions, 426 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:54:12,504 INFO L231 Difference]: Finished difference. Result has 110 places, 93 transitions, 310 flow
[2023-11-19 07:54:12,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=310, PETRI_PLACES=110, PETRI_TRANSITIONS=93}
[2023-11-19 07:54:12,505 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 23 predicate places.
[2023-11-19 07:54:12,505 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 93 transitions, 310 flow
[2023-11-19 07:54:12,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 281.53846153846155) internal successors, (3660), 13 states have internal predecessors, (3660), 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 07:54:12,507 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:12,507 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:12,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-11-19 07:54:12,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17c5f254-1ed8-4ac0-b636-916dc66bc55f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:54:12,731 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:54:12,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:12,731 INFO L85 PathProgramCache]: Analyzing trace with hash -341051465, now seen corresponding path program 2 times
[2023-11-19 07:54:12,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:12,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938006561]
[2023-11-19 07:54:12,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:12,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:13,177 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 07:54:13,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:13,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938006561]
[2023-11-19 07:54:13,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938006561] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:54:13,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:54:13,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:54:13,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856150562]
[2023-11-19 07:54:13,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:13,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:54:13,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:13,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:54:13,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:54:13,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 662
[2023-11-19 07:54:13,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 93 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 271.5) internal successors, (1629), 6 states have internal predecessors, (1629), 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 07:54:13,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:13,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 662
[2023-11-19 07:54:13,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:17,405 INFO L124 PetriNetUnfolderBase]: 21808/33945 cut-off events.
[2023-11-19 07:54:17,405 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES.
[2023-11-19 07:54:17,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68549 conditions, 33945 events. 21808/33945 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 1223. Compared 248965 event pairs, 13884 based on Foata normal form. 0/24627 useless extension candidates. Maximal degree in co-relation 68470. Up to 28007 conditions per place.
[2023-11-19 07:54:17,582 INFO L140 encePairwiseOnDemand]: 650/662 looper letters, 161 selfloop transitions, 15 changer transitions 1/188 dead transitions.
[2023-11-19 07:54:17,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 188 transitions, 884 flow
[2023-11-19 07:54:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-19 07:54:17,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-11-19 07:54:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2058 transitions.
[2023-11-19 07:54:17,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44410876132930516
[2023-11-19 07:54:17,593 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2058 transitions.
[2023-11-19 07:54:17,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2058 transitions.
[2023-11-19 07:54:17,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:17,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2058 transitions.
[2023-11-19 07:54:17,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 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 07:54:17,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 662.0) internal successors, (5296), 8 states have internal predecessors, (5296), 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 07:54:17,611 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 662.0) internal successors, (5296), 8 states have internal predecessors, (5296), 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 07:54:17,612 INFO L175 Difference]: Start difference. First operand has 110 places, 93 transitions, 310 flow. Second operand 7 states and 2058 transitions.
[2023-11-19 07:54:17,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 188 transitions, 884 flow
[2023-11-19 07:54:17,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 188 transitions, 836 flow, removed 19 selfloop flow, removed 5 redundant places.
[2023-11-19 07:54:17,619 INFO L231 Difference]: Finished difference. Result has 115 places, 106 transitions, 364 flow
[2023-11-19 07:54:17,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=364, PETRI_PLACES=115, PETRI_TRANSITIONS=106}
[2023-11-19 07:54:17,620 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 28 predicate places.
[2023-11-19 07:54:17,621 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 106 transitions, 364 flow
[2023-11-19 07:54:17,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 271.5) internal successors, (1629), 6 states have internal predecessors, (1629), 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 07:54:17,621 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:17,622 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:17,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-19 07:54:17,622 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:54:17,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:17,623 INFO L85 PathProgramCache]: Analyzing trace with hash 635249883, now seen corresponding path program 1 times
[2023-11-19 07:54:17,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:17,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062505772]
[2023-11-19 07:54:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2023-11-19 07:54:17,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:17,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062505772]
[2023-11-19 07:54:17,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062505772] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:54:17,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:54:17,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:54:17,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270749095]
[2023-11-19 07:54:17,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:17,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:54:17,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:17,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:54:17,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:54:17,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 662
[2023-11-19 07:54:17,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 106 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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 07:54:17,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:17,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 662
[2023-11-19 07:54:17,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:54:21,128 INFO L124 PetriNetUnfolderBase]: 20561/33029 cut-off events.
[2023-11-19 07:54:21,128 INFO L125 PetriNetUnfolderBase]: For 5953/5953 co-relation queries the response was YES.
[2023-11-19 07:54:21,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71777 conditions, 33029 events. 20561/33029 cut-off events. For 5953/5953 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 257027 event pairs, 3120 based on Foata normal form. 0/24917 useless extension candidates. Maximal degree in co-relation 71717. Up to 26647 conditions per place.
[2023-11-19 07:54:21,358 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 134 selfloop transitions, 2 changer transitions 0/147 dead transitions.
[2023-11-19 07:54:21,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 147 transitions, 750 flow
[2023-11-19 07:54:21,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:54:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:54:21,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 951 transitions.
[2023-11-19 07:54:21,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4788519637462236
[2023-11-19 07:54:21,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 951 transitions.
[2023-11-19 07:54:21,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 951 transitions.
[2023-11-19 07:54:21,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:54:21,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 951 transitions.
[2023-11-19 07:54:21,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 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 07:54:21,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 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 07:54:21,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 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 07:54:21,377 INFO L175 Difference]: Start difference. First operand has 115 places, 106 transitions, 364 flow. Second operand 3 states and 951 transitions.
[2023-11-19 07:54:21,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 147 transitions, 750 flow
[2023-11-19 07:54:21,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 147 transitions, 748 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:54:21,392 INFO L231 Difference]: Finished difference. Result has 115 places, 105 transitions, 362 flow
[2023-11-19 07:54:21,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=115, PETRI_TRANSITIONS=105}
[2023-11-19 07:54:21,393 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 28 predicate places.
[2023-11-19 07:54:21,393 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 105 transitions, 362 flow
[2023-11-19 07:54:21,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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 07:54:21,394 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:54:21,394 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:54:21,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-11-19 07:54:21,395 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2023-11-19 07:54:21,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:54:21,395 INFO L85 PathProgramCache]: Analyzing trace with hash 635249885, now seen corresponding path program 1 times
[2023-11-19 07:54:21,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:54:21,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369133318]
[2023-11-19 07:54:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:54:21,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:54:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:54:21,475 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked.
[2023-11-19 07:54:21,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:54:21,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369133318]
[2023-11-19 07:54:21,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369133318] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:54:21,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:54:21,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:54:21,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906892755]
[2023-11-19 07:54:21,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:54:21,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:54:21,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:54:21,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:54:21,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:54:21,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 662
[2023-11-19 07:54:21,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 105 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 07:54:21,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:54:21,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 662
[2023-11-19 07:54:21,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand