./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version b8dbc81d
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER
--- Real Ultimate output ---
This is Ultimate 0.2.3-?-b8dbc81
[2023-08-30 19:08:16,432 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2023-08-30 19:08:16,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2023-08-30 19:08:16,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-08-30 19:08:16,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-08-30 19:08:16,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-08-30 19:08:16,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-08-30 19:08:16,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2023-08-30 19:08:16,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-08-30 19:08:16,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-08-30 19:08:16,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2023-08-30 19:08:16,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-08-30 19:08:16,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-08-30 19:08:16,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-08-30 19:08:16,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-08-30 19:08:16,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-08-30 19:08:16,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-08-30 19:08:16,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-08-30 19:08:16,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-08-30 19:08:16,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2023-08-30 19:08:16,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-08-30 19:08:16,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-08-30 19:08:16,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2023-08-30 19:08:16,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-08-30 19:08:16,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-08-30 19:08:16,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-08-30 19:08:16,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-08-30 19:08:16,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-08-30 19:08:16,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-08-30 19:08:16,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-08-30 19:08:16,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-08-30 19:08:16,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-08-30 19:08:16,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-08-30 19:08:16,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2023-08-30 19:08:16,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-08-30 19:08:16,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2023-08-30 19:08:16,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-08-30 19:08:16,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-08-30 19:08:16,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2023-08-30 19:08:16,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2023-08-30 19:08:16,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2023-08-30 19:08:16,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-08-30 19:08:16,508 INFO L113 SettingsManager]: Loading preferences was successful
[2023-08-30 19:08:16,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2023-08-30 19:08:16,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-08-30 19:08:16,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-08-30 19:08:16,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-08-30 19:08:16,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-08-30 19:08:16,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-08-30 19:08:16,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2023-08-30 19:08:16,510 INFO L138 SettingsManager]: * Use SBE=true
[2023-08-30 19:08:16,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-08-30 19:08:16,510 INFO L138 SettingsManager]: * sizeof long=4
[2023-08-30 19:08:16,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2023-08-30 19:08:16,510 INFO L138 SettingsManager]: * sizeof POINTER=4
[2023-08-30 19:08:16,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2023-08-30 19:08:16,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-08-30 19:08:16,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-08-30 19:08:16,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-08-30 19:08:16,511 INFO L138 SettingsManager]: * sizeof long double=12
[2023-08-30 19:08:16,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2023-08-30 19:08:16,511 INFO L138 SettingsManager]: * Use constant arrays=true
[2023-08-30 19:08:16,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-08-30 19:08:16,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-08-30 19:08:16,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-08-30 19:08:16,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2023-08-30 19:08:16,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-30 19:08:16,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-08-30 19:08:16,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-08-30 19:08:16,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-08-30 19:08:16,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-08-30 19:08:16,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-08-30 19:08:16,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-08-30 19:08:16,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-08-30 19:08:16,513 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-08-30 19:08:16,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-08-30 19:08:16,514 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-08-30 19:08:16,514 INFO L138 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER
[2023-08-30 19:08:16,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-08-30 19:08:16,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-08-30 19:08:16,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-08-30 19:08:16,779 INFO L271 PluginConnector]: Initializing CDTParser...
[2023-08-30 19:08:16,780 INFO L275 PluginConnector]: CDTParser initialized
[2023-08-30 19:08:16,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c
[2023-08-30 19:08:17,759 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2023-08-30 19:08:17,957 INFO L351 CDTParser]: Found 1 translation units.
[2023-08-30 19:08:17,958 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c
[2023-08-30 19:08:17,975 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db99c9012/7682da7f18c64376a89612addd71ceb7/FLAGb5cb85025
[2023-08-30 19:08:17,995 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db99c9012/7682da7f18c64376a89612addd71ceb7
[2023-08-30 19:08:17,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-08-30 19:08:17,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-08-30 19:08:17,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-08-30 19:08:17,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-08-30 19:08:18,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-08-30 19:08:18,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 07:08:17" (1/1) ...
[2023-08-30 19:08:18,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce09057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18, skipping insertion in model container
[2023-08-30 19:08:18,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 07:08:17" (1/1) ...
[2023-08-30 19:08:18,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2023-08-30 19:08:18,040 INFO L178 MainTranslator]: Built tables and reachable declarations
[2023-08-30 19:08:18,216 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c[6450,6463]
[2023-08-30 19:08:18,231 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-30 19:08:18,240 INFO L203 MainTranslator]: Completed pre-run
[2023-08-30 19:08:18,275 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c[6450,6463]
[2023-08-30 19:08:18,289 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-30 19:08:18,302 INFO L208 MainTranslator]: Completed translation
[2023-08-30 19:08:18,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18 WrapperNode
[2023-08-30 19:08:18,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-08-30 19:08:18,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-08-30 19:08:18,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-08-30 19:08:18,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2023-08-30 19:08:18,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,375 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 601
[2023-08-30 19:08:18,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-08-30 19:08:18,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-08-30 19:08:18,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2023-08-30 19:08:18,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2023-08-30 19:08:18,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,439 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-08-30 19:08:18,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-08-30 19:08:18,450 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2023-08-30 19:08:18,450 INFO L275 PluginConnector]: RCFGBuilder initialized
[2023-08-30 19:08:18,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (1/1) ...
[2023-08-30 19:08:18,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-30 19:08:18,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 19:08:18,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-08-30 19:08:18,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-08-30 19:08:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-08-30 19:08:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-08-30 19:08:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-08-30 19:08:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-08-30 19:08:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2023-08-30 19:08:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2023-08-30 19:08:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2023-08-30 19:08:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2023-08-30 19:08:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2023-08-30 19:08:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2023-08-30 19:08:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-08-30 19:08:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-08-30 19:08:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-08-30 19:08:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-08-30 19:08:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-08-30 19:08:18,519 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-08-30 19:08:18,636 INFO L236 CfgBuilder]: Building ICFG
[2023-08-30 19:08:18,637 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-08-30 19:08:19,232 INFO L277 CfgBuilder]: Performing block encoding
[2023-08-30 19:08:19,244 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-08-30 19:08:19,245 INFO L302 CfgBuilder]: Removed 6 assume(true) statements.
[2023-08-30 19:08:19,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:08:19 BoogieIcfgContainer
[2023-08-30 19:08:19,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-08-30 19:08:19,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-08-30 19:08:19,248 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2023-08-30 19:08:19,250 INFO L275 PluginConnector]: TraceAbstraction initialized
[2023-08-30 19:08:19,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 07:08:17" (1/3) ...
[2023-08-30 19:08:19,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca3efd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 07:08:19, skipping insertion in model container
[2023-08-30 19:08:19,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:08:18" (2/3) ...
[2023-08-30 19:08:19,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca3efd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 07:08:19, skipping insertion in model container
[2023-08-30 19:08:19,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:08:19" (3/3) ...
[2023-08-30 19:08:19,252 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c
[2023-08-30 19:08:19,257 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-08-30 19:08:19,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-08-30 19:08:19,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-08-30 19:08:19,262 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-08-30 19:08:19,384 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-08-30 19:08:19,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 654 places, 717 transitions, 1458 flow
[2023-08-30 19:08:19,648 INFO L130 PetriNetUnfolder]: 73/714 cut-off events.
[2023-08-30 19:08:19,649 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2023-08-30 19:08:19,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 714 events. 73/714 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2388 event pairs, 0 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 532. Up to 2 conditions per place.
[2023-08-30 19:08:19,664 INFO L82 GeneralOperation]: Start removeDead. Operand has 654 places, 717 transitions, 1458 flow
[2023-08-30 19:08:19,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 641 places, 704 transitions, 1426 flow
[2023-08-30 19:08:19,676 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-30 19:08:19,684 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 641 places, 704 transitions, 1426 flow
[2023-08-30 19:08:19,687 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 641 places, 704 transitions, 1426 flow
[2023-08-30 19:08:19,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 641 places, 704 transitions, 1426 flow
[2023-08-30 19:08:19,806 INFO L130 PetriNetUnfolder]: 73/704 cut-off events.
[2023-08-30 19:08:19,807 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2023-08-30 19:08:19,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 704 events. 73/704 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2389 event pairs, 0 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 532. Up to 2 conditions per place.
[2023-08-30 19:08:19,857 INFO L119 LiptonReduction]: Number of co-enabled transitions 157248
[2023-08-30 19:08:42,357 INFO L134 LiptonReduction]: Checked pairs total: 150057
[2023-08-30 19:08:42,357 INFO L136 LiptonReduction]: Total number of compositions: 891
[2023-08-30 19:08:42,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-30 19:08:42,391 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=LoopsAndPotentialCycles, 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;@5d17843c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-30 19:08:42,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2023-08-30 19:08:42,403 INFO L130 PetriNetUnfolder]: 12/47 cut-off events.
[2023-08-30 19:08:42,404 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2023-08-30 19:08:42,404 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:08:42,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:08:42,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:08:42,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:08:42,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1427696023, now seen corresponding path program 1 times
[2023-08-30 19:08:42,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:08:42,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859258664]
[2023-08-30 19:08:42,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:42,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:08:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-30 19:08:42,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:08:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859258664]
[2023-08-30 19:08:42,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859258664] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:08:42,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:08:42,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-30 19:08:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460499157]
[2023-08-30 19:08:42,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:08:42,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-30 19:08:42,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:08:42,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-30 19:08:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-30 19:08:42,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 661 out of 1608
[2023-08-30 19:08:42,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 48 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 667.3333333333334) internal successors, (2002), 3 states have internal predecessors, (2002), 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)
[2023-08-30 19:08:42,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:08:42,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 661 of 1608
[2023-08-30 19:08:42,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:08:43,389 INFO L130 PetriNetUnfolder]: 2608/3503 cut-off events.
[2023-08-30 19:08:43,389 INFO L131 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES.
[2023-08-30 19:08:43,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7267 conditions, 3503 events. 2608/3503 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 12504 event pairs, 1657 based on Foata normal form. 0/2552 useless extension candidates. Maximal degree in co-relation 6748. Up to 3501 conditions per place.
[2023-08-30 19:08:43,400 INFO L137 encePairwiseOnDemand]: 1600/1608 looper letters, 44 selfloop transitions, 6 changer transitions 0/50 dead transitions.
[2023-08-30 19:08:43,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 50 transitions, 218 flow
[2023-08-30 19:08:43,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-30 19:08:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-30 19:08:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2037 transitions.
[2023-08-30 19:08:43,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4222636815920398
[2023-08-30 19:08:43,417 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2037 transitions.
[2023-08-30 19:08:43,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2037 transitions.
[2023-08-30 19:08:43,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:08:43,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2037 transitions.
[2023-08-30 19:08:43,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 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)
[2023-08-30 19:08:43,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1608.0) internal successors, (6432), 4 states have internal predecessors, (6432), 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)
[2023-08-30 19:08:43,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1608.0) internal successors, (6432), 4 states have internal predecessors, (6432), 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)
[2023-08-30 19:08:43,440 INFO L175 Difference]: Start difference. First operand has 46 places, 48 transitions, 114 flow. Second operand 3 states and 2037 transitions.
[2023-08-30 19:08:43,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 50 transitions, 218 flow
[2023-08-30 19:08:43,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 50 transitions, 206 flow, removed 0 selfloop flow, removed 6 redundant places.
[2023-08-30 19:08:43,447 INFO L231 Difference]: Finished difference. Result has 43 places, 50 transitions, 132 flow
[2023-08-30 19:08:43,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=43, PETRI_TRANSITIONS=50}
[2023-08-30 19:08:43,450 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places.
[2023-08-30 19:08:43,450 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 50 transitions, 132 flow
[2023-08-30 19:08:43,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 667.3333333333334) internal successors, (2002), 3 states have internal predecessors, (2002), 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)
[2023-08-30 19:08:43,451 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:08:43,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:08:43,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-08-30 19:08:43,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:08:43,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:08:43,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2065041558, now seen corresponding path program 1 times
[2023-08-30 19:08:43,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:08:43,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349074640]
[2023-08-30 19:08:43,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:43,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:08:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-08-30 19:08:43,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:08:43,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349074640]
[2023-08-30 19:08:43,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349074640] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-30 19:08:43,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018126327]
[2023-08-30 19:08:43,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:43,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:08:43,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 19:08:43,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-30 19:08:43,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-08-30 19:08:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:43,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-08-30 19:08:43,782 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-08-30 19:08:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-08-30 19:08:43,828 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-08-30 19:08:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-08-30 19:08:43,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018126327] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-30 19:08:43,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-30 19:08:43,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8
[2023-08-30 19:08:43,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476156101]
[2023-08-30 19:08:43,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-30 19:08:43,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-08-30 19:08:43,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:08:43,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-08-30 19:08:43,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56
[2023-08-30 19:08:43,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 655 out of 1608
[2023-08-30 19:08:44,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 50 transitions, 132 flow. Second operand has 8 states, 8 states have (on average 659.0) internal successors, (5272), 8 states have internal predecessors, (5272), 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)
[2023-08-30 19:08:44,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:08:44,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 655 of 1608
[2023-08-30 19:08:44,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:08:44,490 INFO L130 PetriNetUnfolder]: 2608/3512 cut-off events.
[2023-08-30 19:08:44,490 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES.
[2023-08-30 19:08:44,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7161 conditions, 3512 events. 2608/3512 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 12508 event pairs, 1657 based on Foata normal form. 6/2569 useless extension candidates. Maximal degree in co-relation 7112. Up to 3501 conditions per place.
[2023-08-30 19:08:44,501 INFO L137 encePairwiseOnDemand]: 1601/1608 looper letters, 44 selfloop transitions, 15 changer transitions 0/59 dead transitions.
[2023-08-30 19:08:44,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 59 transitions, 286 flow
[2023-08-30 19:08:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-08-30 19:08:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-08-30 19:08:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3998 transitions.
[2023-08-30 19:08:44,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41438640132669985
[2023-08-30 19:08:44,508 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3998 transitions.
[2023-08-30 19:08:44,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3998 transitions.
[2023-08-30 19:08:44,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:08:44,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3998 transitions.
[2023-08-30 19:08:44,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 666.3333333333334) internal successors, (3998), 6 states have internal predecessors, (3998), 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)
[2023-08-30 19:08:44,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1608.0) internal successors, (11256), 7 states have internal predecessors, (11256), 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)
[2023-08-30 19:08:44,531 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1608.0) internal successors, (11256), 7 states have internal predecessors, (11256), 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)
[2023-08-30 19:08:44,531 INFO L175 Difference]: Start difference. First operand has 43 places, 50 transitions, 132 flow. Second operand 6 states and 3998 transitions.
[2023-08-30 19:08:44,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 59 transitions, 286 flow
[2023-08-30 19:08:44,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-30 19:08:44,533 INFO L231 Difference]: Finished difference. Result has 50 places, 59 transitions, 222 flow
[2023-08-30 19:08:44,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=222, PETRI_PLACES=50, PETRI_TRANSITIONS=59}
[2023-08-30 19:08:44,534 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 4 predicate places.
[2023-08-30 19:08:44,534 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 59 transitions, 222 flow
[2023-08-30 19:08:44,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 659.0) internal successors, (5272), 8 states have internal predecessors, (5272), 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)
[2023-08-30 19:08:44,537 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:08:44,537 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:08:44,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-08-30 19:08:44,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:08:44,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:08:44,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:08:44,747 INFO L85 PathProgramCache]: Analyzing trace with hash 773664469, now seen corresponding path program 2 times
[2023-08-30 19:08:44,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:08:44,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356341506]
[2023-08-30 19:08:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:44,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:08:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:44,945 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2023-08-30 19:08:44,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:08:44,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356341506]
[2023-08-30 19:08:44,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356341506] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-30 19:08:44,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101034559]
[2023-08-30 19:08:44,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-08-30 19:08:44,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:08:44,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 19:08:44,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-30 19:08:44,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-08-30 19:08:45,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2023-08-30 19:08:45,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-08-30 19:08:45,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-08-30 19:08:45,120 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-08-30 19:08:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2023-08-30 19:08:46,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-30 19:08:46,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101034559] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:08:46,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-30 19:08:46,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10
[2023-08-30 19:08:46,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350655946]
[2023-08-30 19:08:46,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:08:46,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-30 19:08:46,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:08:46,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-30 19:08:46,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2023-08-30 19:08:46,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 639 out of 1608
[2023-08-30 19:08:46,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 59 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 643.4) internal successors, (3217), 5 states have internal predecessors, (3217), 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)
[2023-08-30 19:08:46,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:08:46,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 639 of 1608
[2023-08-30 19:08:46,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:08:47,459 INFO L130 PetriNetUnfolder]: 2934/4017 cut-off events.
[2023-08-30 19:08:47,460 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES.
[2023-08-30 19:08:47,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8213 conditions, 4017 events. 2934/4017 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 15676 event pairs, 1657 based on Foata normal form. 1/2930 useless extension candidates. Maximal degree in co-relation 8125. Up to 3431 conditions per place.
[2023-08-30 19:08:47,472 INFO L137 encePairwiseOnDemand]: 1604/1608 looper letters, 96 selfloop transitions, 2 changer transitions 7/105 dead transitions.
[2023-08-30 19:08:47,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 105 transitions, 536 flow
[2023-08-30 19:08:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-30 19:08:47,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-30 19:08:47,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3289 transitions.
[2023-08-30 19:08:47,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4090796019900497
[2023-08-30 19:08:47,478 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3289 transitions.
[2023-08-30 19:08:47,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3289 transitions.
[2023-08-30 19:08:47,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:08:47,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3289 transitions.
[2023-08-30 19:08:47,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 657.8) internal successors, (3289), 5 states have internal predecessors, (3289), 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)
[2023-08-30 19:08:47,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:47,494 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:47,494 INFO L175 Difference]: Start difference. First operand has 50 places, 59 transitions, 222 flow. Second operand 5 states and 3289 transitions.
[2023-08-30 19:08:47,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 105 transitions, 536 flow
[2023-08-30 19:08:47,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 105 transitions, 512 flow, removed 9 selfloop flow, removed 1 redundant places.
[2023-08-30 19:08:47,497 INFO L231 Difference]: Finished difference. Result has 56 places, 60 transitions, 213 flow
[2023-08-30 19:08:47,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=213, PETRI_PLACES=56, PETRI_TRANSITIONS=60}
[2023-08-30 19:08:47,497 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 10 predicate places.
[2023-08-30 19:08:47,498 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 60 transitions, 213 flow
[2023-08-30 19:08:47,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 643.4) internal successors, (3217), 5 states have internal predecessors, (3217), 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)
[2023-08-30 19:08:47,499 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:08:47,499 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:08:47,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-08-30 19:08:47,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2023-08-30 19:08:47,705 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:08:47,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:08:47,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1680310845, now seen corresponding path program 3 times
[2023-08-30 19:08:47,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:08:47,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154375545]
[2023-08-30 19:08:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:47,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:08:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2023-08-30 19:08:47,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:08:47,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154375545]
[2023-08-30 19:08:47,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154375545] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-30 19:08:47,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619948480]
[2023-08-30 19:08:47,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-08-30 19:08:47,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:08:47,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 19:08:47,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-30 19:08:47,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-08-30 19:08:48,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2023-08-30 19:08:48,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-08-30 19:08:48,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-08-30 19:08:48,012 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-08-30 19:08:48,823 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2023-08-30 19:08:48,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-30 19:08:48,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619948480] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:08:48,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-30 19:08:48,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10
[2023-08-30 19:08:48,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204827632]
[2023-08-30 19:08:48,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:08:48,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-30 19:08:48,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:08:48,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-30 19:08:48,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2023-08-30 19:08:49,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 639 out of 1608
[2023-08-30 19:08:49,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 60 transitions, 213 flow. Second operand has 5 states, 5 states have (on average 643.4) internal successors, (3217), 5 states have internal predecessors, (3217), 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)
[2023-08-30 19:08:49,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:08:49,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 639 of 1608
[2023-08-30 19:08:49,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:08:50,065 INFO L130 PetriNetUnfolder]: 3124/4357 cut-off events.
[2023-08-30 19:08:50,065 INFO L131 PetriNetUnfolder]: For 701/701 co-relation queries the response was YES.
[2023-08-30 19:08:50,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9403 conditions, 4357 events. 3124/4357 cut-off events. For 701/701 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 18094 event pairs, 1919 based on Foata normal form. 1/3672 useless extension candidates. Maximal degree in co-relation 9371. Up to 3869 conditions per place.
[2023-08-30 19:08:50,077 INFO L137 encePairwiseOnDemand]: 1604/1608 looper letters, 100 selfloop transitions, 3 changer transitions 7/110 dead transitions.
[2023-08-30 19:08:50,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 110 transitions, 555 flow
[2023-08-30 19:08:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-30 19:08:50,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-30 19:08:50,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3293 transitions.
[2023-08-30 19:08:50,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4095771144278607
[2023-08-30 19:08:50,083 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3293 transitions.
[2023-08-30 19:08:50,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3293 transitions.
[2023-08-30 19:08:50,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:08:50,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3293 transitions.
[2023-08-30 19:08:50,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 658.6) internal successors, (3293), 5 states have internal predecessors, (3293), 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)
[2023-08-30 19:08:50,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:50,097 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:50,097 INFO L175 Difference]: Start difference. First operand has 56 places, 60 transitions, 213 flow. Second operand 5 states and 3293 transitions.
[2023-08-30 19:08:50,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 110 transitions, 555 flow
[2023-08-30 19:08:50,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 110 transitions, 546 flow, removed 3 selfloop flow, removed 2 redundant places.
[2023-08-30 19:08:50,100 INFO L231 Difference]: Finished difference. Result has 60 places, 61 transitions, 230 flow
[2023-08-30 19:08:50,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=230, PETRI_PLACES=60, PETRI_TRANSITIONS=61}
[2023-08-30 19:08:50,100 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 14 predicate places.
[2023-08-30 19:08:50,100 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 61 transitions, 230 flow
[2023-08-30 19:08:50,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 643.4) internal successors, (3217), 5 states have internal predecessors, (3217), 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)
[2023-08-30 19:08:50,101 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:08:50,101 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:08:50,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-08-30 19:08:50,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:08:50,306 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:08:50,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:08:50,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1405257897, now seen corresponding path program 4 times
[2023-08-30 19:08:50,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:08:50,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319772296]
[2023-08-30 19:08:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:50,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:08:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:50,417 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2023-08-30 19:08:50,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:08:50,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319772296]
[2023-08-30 19:08:50,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319772296] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-30 19:08:50,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206762044]
[2023-08-30 19:08:50,418 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2023-08-30 19:08:50,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:08:50,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 19:08:50,433 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-30 19:08:50,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-08-30 19:08:50,635 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2023-08-30 19:08:50,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-08-30 19:08:50,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-08-30 19:08:50,638 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-08-30 19:08:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2023-08-30 19:08:50,693 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-08-30 19:08:50,724 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2023-08-30 19:08:50,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206762044] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-30 19:08:50,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-30 19:08:50,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2023-08-30 19:08:50,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406798340]
[2023-08-30 19:08:50,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-30 19:08:50,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-08-30 19:08:50,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:08:50,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-08-30 19:08:50,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156
[2023-08-30 19:08:50,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 655 out of 1608
[2023-08-30 19:08:50,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 61 transitions, 230 flow. Second operand has 13 states, 13 states have (on average 657.5384615384615) internal successors, (8548), 13 states have internal predecessors, (8548), 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)
[2023-08-30 19:08:50,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:08:50,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 655 of 1608
[2023-08-30 19:08:50,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:08:51,432 INFO L130 PetriNetUnfolder]: 3123/4352 cut-off events.
[2023-08-30 19:08:51,432 INFO L131 PetriNetUnfolder]: For 1787/1787 co-relation queries the response was YES.
[2023-08-30 19:08:51,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9913 conditions, 4352 events. 3123/4352 cut-off events. For 1787/1787 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 17812 event pairs, 2136 based on Foata normal form. 1/3667 useless extension candidates. Maximal degree in co-relation 9879. Up to 4338 conditions per place.
[2023-08-30 19:08:51,448 INFO L137 encePairwiseOnDemand]: 1601/1608 looper letters, 46 selfloop transitions, 18 changer transitions 0/64 dead transitions.
[2023-08-30 19:08:51,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 376 flow
[2023-08-30 19:08:51,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-08-30 19:08:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-08-30 19:08:51,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4650 transitions.
[2023-08-30 19:08:51,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4131130063965885
[2023-08-30 19:08:51,456 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4650 transitions.
[2023-08-30 19:08:51,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4650 transitions.
[2023-08-30 19:08:51,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:08:51,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4650 transitions.
[2023-08-30 19:08:51,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 664.2857142857143) internal successors, (4650), 7 states have internal predecessors, (4650), 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)
[2023-08-30 19:08:51,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1608.0) internal successors, (12864), 8 states have internal predecessors, (12864), 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)
[2023-08-30 19:08:51,472 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1608.0) internal successors, (12864), 8 states have internal predecessors, (12864), 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)
[2023-08-30 19:08:51,472 INFO L175 Difference]: Start difference. First operand has 60 places, 61 transitions, 230 flow. Second operand 7 states and 4650 transitions.
[2023-08-30 19:08:51,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 376 flow
[2023-08-30 19:08:51,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 64 transitions, 370 flow, removed 2 selfloop flow, removed 2 redundant places.
[2023-08-30 19:08:51,476 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 292 flow
[2023-08-30 19:08:51,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=292, PETRI_PLACES=64, PETRI_TRANSITIONS=64}
[2023-08-30 19:08:51,479 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 18 predicate places.
[2023-08-30 19:08:51,479 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 292 flow
[2023-08-30 19:08:51,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 657.5384615384615) internal successors, (8548), 13 states have internal predecessors, (8548), 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)
[2023-08-30 19:08:51,481 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:08:51,481 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:08:51,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-08-30 19:08:51,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:08:51,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:08:51,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:08:51,687 INFO L85 PathProgramCache]: Analyzing trace with hash -472303414, now seen corresponding path program 5 times
[2023-08-30 19:08:51,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:08:51,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752212266]
[2023-08-30 19:08:51,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:08:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:08:52,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:08:52,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752212266]
[2023-08-30 19:08:52,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752212266] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:08:52,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:08:52,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-30 19:08:52,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5743397]
[2023-08-30 19:08:52,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:08:52,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-30 19:08:52,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:08:52,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-30 19:08:52,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-08-30 19:08:52,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 635 out of 1608
[2023-08-30 19:08:52,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 292 flow. Second operand has 5 states, 5 states have (on average 639.4) internal successors, (3197), 5 states have internal predecessors, (3197), 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)
[2023-08-30 19:08:52,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:08:52,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 635 of 1608
[2023-08-30 19:08:52,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:08:53,320 INFO L130 PetriNetUnfolder]: 3772/5412 cut-off events.
[2023-08-30 19:08:53,320 INFO L131 PetriNetUnfolder]: For 1184/1184 co-relation queries the response was YES.
[2023-08-30 19:08:53,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11895 conditions, 5412 events. 3772/5412 cut-off events. For 1184/1184 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 25238 event pairs, 2135 based on Foata normal form. 1/4567 useless extension candidates. Maximal degree in co-relation 11782. Up to 4014 conditions per place.
[2023-08-30 19:08:53,338 INFO L137 encePairwiseOnDemand]: 1596/1608 looper letters, 121 selfloop transitions, 14 changer transitions 4/139 dead transitions.
[2023-08-30 19:08:53,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 139 transitions, 751 flow
[2023-08-30 19:08:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-30 19:08:53,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-30 19:08:53,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3297 transitions.
[2023-08-30 19:08:53,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41007462686567164
[2023-08-30 19:08:53,343 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3297 transitions.
[2023-08-30 19:08:53,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3297 transitions.
[2023-08-30 19:08:53,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:08:53,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3297 transitions.
[2023-08-30 19:08:53,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 659.4) internal successors, (3297), 5 states have internal predecessors, (3297), 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)
[2023-08-30 19:08:53,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:53,356 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:53,356 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 292 flow. Second operand 5 states and 3297 transitions.
[2023-08-30 19:08:53,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 139 transitions, 751 flow
[2023-08-30 19:08:53,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 139 transitions, 715 flow, removed 6 selfloop flow, removed 4 redundant places.
[2023-08-30 19:08:53,360 INFO L231 Difference]: Finished difference. Result has 67 places, 76 transitions, 372 flow
[2023-08-30 19:08:53,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=372, PETRI_PLACES=67, PETRI_TRANSITIONS=76}
[2023-08-30 19:08:53,363 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 21 predicate places.
[2023-08-30 19:08:53,363 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 76 transitions, 372 flow
[2023-08-30 19:08:53,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 639.4) internal successors, (3197), 5 states have internal predecessors, (3197), 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)
[2023-08-30 19:08:53,364 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:08:53,364 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:08:53,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-08-30 19:08:53,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:08:53,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:08:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash 952440716, now seen corresponding path program 6 times
[2023-08-30 19:08:53,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:08:53,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245431888]
[2023-08-30 19:08:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:53,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:08:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:08:53,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:08:53,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245431888]
[2023-08-30 19:08:53,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245431888] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:08:53,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:08:53,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-30 19:08:53,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263301386]
[2023-08-30 19:08:53,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:08:53,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-30 19:08:53,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:08:53,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-30 19:08:53,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-08-30 19:08:54,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 635 out of 1608
[2023-08-30 19:08:54,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 76 transitions, 372 flow. Second operand has 5 states, 5 states have (on average 639.4) internal successors, (3197), 5 states have internal predecessors, (3197), 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)
[2023-08-30 19:08:54,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:08:54,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 635 of 1608
[2023-08-30 19:08:54,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:08:55,516 INFO L130 PetriNetUnfolder]: 7026/9920 cut-off events.
[2023-08-30 19:08:55,516 INFO L131 PetriNetUnfolder]: For 6866/6866 co-relation queries the response was YES.
[2023-08-30 19:08:55,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24933 conditions, 9920 events. 7026/9920 cut-off events. For 6866/6866 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 49525 event pairs, 1967 based on Foata normal form. 1/8697 useless extension candidates. Maximal degree in co-relation 24834. Up to 4768 conditions per place.
[2023-08-30 19:08:55,548 INFO L137 encePairwiseOnDemand]: 1593/1608 looper letters, 127 selfloop transitions, 43 changer transitions 3/173 dead transitions.
[2023-08-30 19:08:55,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 173 transitions, 1042 flow
[2023-08-30 19:08:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-30 19:08:55,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-30 19:08:55,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3318 transitions.
[2023-08-30 19:08:55,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4126865671641791
[2023-08-30 19:08:55,554 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3318 transitions.
[2023-08-30 19:08:55,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3318 transitions.
[2023-08-30 19:08:55,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:08:55,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3318 transitions.
[2023-08-30 19:08:55,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 663.6) internal successors, (3318), 5 states have internal predecessors, (3318), 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)
[2023-08-30 19:08:55,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:55,564 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:55,564 INFO L175 Difference]: Start difference. First operand has 67 places, 76 transitions, 372 flow. Second operand 5 states and 3318 transitions.
[2023-08-30 19:08:55,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 173 transitions, 1042 flow
[2023-08-30 19:08:55,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 173 transitions, 1031 flow, removed 3 selfloop flow, removed 1 redundant places.
[2023-08-30 19:08:55,573 INFO L231 Difference]: Finished difference. Result has 73 places, 106 transitions, 711 flow
[2023-08-30 19:08:55,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=711, PETRI_PLACES=73, PETRI_TRANSITIONS=106}
[2023-08-30 19:08:55,574 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places.
[2023-08-30 19:08:55,574 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 106 transitions, 711 flow
[2023-08-30 19:08:55,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 639.4) internal successors, (3197), 5 states have internal predecessors, (3197), 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)
[2023-08-30 19:08:55,575 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:08:55,575 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:08:55,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-08-30 19:08:55,575 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:08:55,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:08:55,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1010676078, now seen corresponding path program 7 times
[2023-08-30 19:08:55,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:08:55,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842251114]
[2023-08-30 19:08:55,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:55,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:08:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:08:55,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:08:55,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842251114]
[2023-08-30 19:08:55,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842251114] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:08:55,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:08:55,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-30 19:08:55,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070464642]
[2023-08-30 19:08:55,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:08:56,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-30 19:08:56,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:08:56,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-30 19:08:56,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-08-30 19:08:56,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 635 out of 1608
[2023-08-30 19:08:56,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 106 transitions, 711 flow. Second operand has 5 states, 5 states have (on average 639.4) internal successors, (3197), 5 states have internal predecessors, (3197), 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)
[2023-08-30 19:08:56,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:08:56,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 635 of 1608
[2023-08-30 19:08:56,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:08:57,606 INFO L130 PetriNetUnfolder]: 7335/10386 cut-off events.
[2023-08-30 19:08:57,607 INFO L131 PetriNetUnfolder]: For 16920/16920 co-relation queries the response was YES.
[2023-08-30 19:08:57,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31791 conditions, 10386 events. 7335/10386 cut-off events. For 16920/16920 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 52628 event pairs, 3757 based on Foata normal form. 1/9053 useless extension candidates. Maximal degree in co-relation 31689. Up to 8786 conditions per place.
[2023-08-30 19:08:57,644 INFO L137 encePairwiseOnDemand]: 1596/1608 looper letters, 167 selfloop transitions, 19 changer transitions 3/189 dead transitions.
[2023-08-30 19:08:57,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 189 transitions, 1471 flow
[2023-08-30 19:08:57,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-30 19:08:57,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-30 19:08:57,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3291 transitions.
[2023-08-30 19:08:57,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40932835820895525
[2023-08-30 19:08:57,649 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3291 transitions.
[2023-08-30 19:08:57,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3291 transitions.
[2023-08-30 19:08:57,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:08:57,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3291 transitions.
[2023-08-30 19:08:57,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 658.2) internal successors, (3291), 5 states have internal predecessors, (3291), 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)
[2023-08-30 19:08:57,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:57,659 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:08:57,659 INFO L175 Difference]: Start difference. First operand has 73 places, 106 transitions, 711 flow. Second operand 5 states and 3291 transitions.
[2023-08-30 19:08:57,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 189 transitions, 1471 flow
[2023-08-30 19:08:57,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 189 transitions, 1453 flow, removed 9 selfloop flow, removed 0 redundant places.
[2023-08-30 19:08:57,747 INFO L231 Difference]: Finished difference. Result has 80 places, 122 transitions, 904 flow
[2023-08-30 19:08:57,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=904, PETRI_PLACES=80, PETRI_TRANSITIONS=122}
[2023-08-30 19:08:57,748 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 34 predicate places.
[2023-08-30 19:08:57,748 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 122 transitions, 904 flow
[2023-08-30 19:08:57,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 639.4) internal successors, (3197), 5 states have internal predecessors, (3197), 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)
[2023-08-30 19:08:57,748 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:08:57,749 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:08:57,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-08-30 19:08:57,749 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:08:57,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:08:57,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1354860510, now seen corresponding path program 8 times
[2023-08-30 19:08:57,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:08:57,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730028931]
[2023-08-30 19:08:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:08:57,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:08:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:08:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:08:58,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:08:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730028931]
[2023-08-30 19:08:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730028931] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:08:58,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:08:58,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-30 19:08:58,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958754140]
[2023-08-30 19:08:58,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:08:58,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-30 19:08:58,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:08:58,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-30 19:08:58,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-08-30 19:08:58,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 634 out of 1608
[2023-08-30 19:08:58,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 122 transitions, 904 flow. Second operand has 5 states, 5 states have (on average 638.4) internal successors, (3192), 5 states have internal predecessors, (3192), 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)
[2023-08-30 19:08:58,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:08:58,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 634 of 1608
[2023-08-30 19:08:58,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:00,091 INFO L130 PetriNetUnfolder]: 7800/11126 cut-off events.
[2023-08-30 19:09:00,091 INFO L131 PetriNetUnfolder]: For 25716/25716 co-relation queries the response was YES.
[2023-08-30 19:09:00,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38905 conditions, 11126 events. 7800/11126 cut-off events. For 25716/25716 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 57874 event pairs, 3450 based on Foata normal form. 1/9741 useless extension candidates. Maximal degree in co-relation 38799. Up to 8455 conditions per place.
[2023-08-30 19:09:00,136 INFO L137 encePairwiseOnDemand]: 1596/1608 looper letters, 174 selfloop transitions, 40 changer transitions 4/218 dead transitions.
[2023-08-30 19:09:00,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 218 transitions, 1838 flow
[2023-08-30 19:09:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-30 19:09:00,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-30 19:09:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3301 transitions.
[2023-08-30 19:09:00,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4105721393034826
[2023-08-30 19:09:00,141 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3301 transitions.
[2023-08-30 19:09:00,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3301 transitions.
[2023-08-30 19:09:00,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:00,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3301 transitions.
[2023-08-30 19:09:00,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 660.2) internal successors, (3301), 5 states have internal predecessors, (3301), 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)
[2023-08-30 19:09:00,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:09:00,151 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:09:00,151 INFO L175 Difference]: Start difference. First operand has 80 places, 122 transitions, 904 flow. Second operand 5 states and 3301 transitions.
[2023-08-30 19:09:00,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 218 transitions, 1838 flow
[2023-08-30 19:09:00,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 218 transitions, 1816 flow, removed 8 selfloop flow, removed 1 redundant places.
[2023-08-30 19:09:00,201 INFO L231 Difference]: Finished difference. Result has 86 places, 145 transitions, 1288 flow
[2023-08-30 19:09:00,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1288, PETRI_PLACES=86, PETRI_TRANSITIONS=145}
[2023-08-30 19:09:00,202 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 40 predicate places.
[2023-08-30 19:09:00,202 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 145 transitions, 1288 flow
[2023-08-30 19:09:00,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 638.4) internal successors, (3192), 5 states have internal predecessors, (3192), 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)
[2023-08-30 19:09:00,203 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:00,203 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:00,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-08-30 19:09:00,203 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:00,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:00,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2050180737, now seen corresponding path program 1 times
[2023-08-30 19:09:00,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:00,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071418324]
[2023-08-30 19:09:00,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:00,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:00,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:00,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071418324]
[2023-08-30 19:09:00,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071418324] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:00,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:00,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-30 19:09:00,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456875237]
[2023-08-30 19:09:00,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:00,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-30 19:09:00,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:00,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-30 19:09:00,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-30 19:09:00,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 666 out of 1608
[2023-08-30 19:09:00,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 145 transitions, 1288 flow. Second operand has 3 states, 3 states have (on average 673.6666666666666) internal successors, (2021), 3 states have internal predecessors, (2021), 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)
[2023-08-30 19:09:00,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:00,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 666 of 1608
[2023-08-30 19:09:00,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:02,409 INFO L130 PetriNetUnfolder]: 9909/14036 cut-off events.
[2023-08-30 19:09:02,410 INFO L131 PetriNetUnfolder]: For 48456/48456 co-relation queries the response was YES.
[2023-08-30 19:09:02,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51285 conditions, 14036 events. 9909/14036 cut-off events. For 48456/48456 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 73262 event pairs, 4598 based on Foata normal form. 206/12412 useless extension candidates. Maximal degree in co-relation 51176. Up to 10987 conditions per place.
[2023-08-30 19:09:02,462 INFO L137 encePairwiseOnDemand]: 1605/1608 looper letters, 192 selfloop transitions, 6 changer transitions 0/198 dead transitions.
[2023-08-30 19:09:02,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 198 transitions, 2083 flow
[2023-08-30 19:09:02,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-30 19:09:02,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-30 19:09:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2072 transitions.
[2023-08-30 19:09:02,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4295190713101161
[2023-08-30 19:09:02,466 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2072 transitions.
[2023-08-30 19:09:02,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2072 transitions.
[2023-08-30 19:09:02,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:02,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2072 transitions.
[2023-08-30 19:09:02,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 690.6666666666666) internal successors, (2072), 3 states have internal predecessors, (2072), 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)
[2023-08-30 19:09:02,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1608.0) internal successors, (6432), 4 states have internal predecessors, (6432), 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)
[2023-08-30 19:09:02,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1608.0) internal successors, (6432), 4 states have internal predecessors, (6432), 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)
[2023-08-30 19:09:02,472 INFO L175 Difference]: Start difference. First operand has 86 places, 145 transitions, 1288 flow. Second operand 3 states and 2072 transitions.
[2023-08-30 19:09:02,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 198 transitions, 2083 flow
[2023-08-30 19:09:02,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 198 transitions, 2063 flow, removed 5 selfloop flow, removed 1 redundant places.
[2023-08-30 19:09:02,549 INFO L231 Difference]: Finished difference. Result has 88 places, 142 transitions, 1256 flow
[2023-08-30 19:09:02,549 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1256, PETRI_PLACES=88, PETRI_TRANSITIONS=142}
[2023-08-30 19:09:02,549 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 42 predicate places.
[2023-08-30 19:09:02,549 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 142 transitions, 1256 flow
[2023-08-30 19:09:02,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 673.6666666666666) internal successors, (2021), 3 states have internal predecessors, (2021), 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)
[2023-08-30 19:09:02,550 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:02,550 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:02,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-08-30 19:09:02,550 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:02,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:02,551 INFO L85 PathProgramCache]: Analyzing trace with hash 763817431, now seen corresponding path program 1 times
[2023-08-30 19:09:02,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:02,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018580201]
[2023-08-30 19:09:02,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:02,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:02,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:02,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018580201]
[2023-08-30 19:09:02,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018580201] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:02,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:02,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-30 19:09:02,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323882077]
[2023-08-30 19:09:02,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:02,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-30 19:09:02,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:02,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-30 19:09:02,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-30 19:09:02,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 666 out of 1608
[2023-08-30 19:09:02,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 142 transitions, 1256 flow. Second operand has 3 states, 3 states have (on average 673.6666666666666) internal successors, (2021), 3 states have internal predecessors, (2021), 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)
[2023-08-30 19:09:02,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:02,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 666 of 1608
[2023-08-30 19:09:02,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:04,988 INFO L130 PetriNetUnfolder]: 12294/17373 cut-off events.
[2023-08-30 19:09:04,989 INFO L131 PetriNetUnfolder]: For 54974/54974 co-relation queries the response was YES.
[2023-08-30 19:09:05,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64321 conditions, 17373 events. 12294/17373 cut-off events. For 54974/54974 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 92936 event pairs, 5850 based on Foata normal form. 0/15447 useless extension candidates. Maximal degree in co-relation 64211. Up to 14217 conditions per place.
[2023-08-30 19:09:05,060 INFO L137 encePairwiseOnDemand]: 1605/1608 looper letters, 179 selfloop transitions, 9 changer transitions 0/188 dead transitions.
[2023-08-30 19:09:05,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 188 transitions, 1949 flow
[2023-08-30 19:09:05,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-30 19:09:05,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-30 19:09:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2076 transitions.
[2023-08-30 19:09:05,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43034825870646765
[2023-08-30 19:09:05,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2076 transitions.
[2023-08-30 19:09:05,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2076 transitions.
[2023-08-30 19:09:05,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:05,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2076 transitions.
[2023-08-30 19:09:05,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 692.0) internal successors, (2076), 3 states have internal predecessors, (2076), 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)
[2023-08-30 19:09:05,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1608.0) internal successors, (6432), 4 states have internal predecessors, (6432), 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)
[2023-08-30 19:09:05,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1608.0) internal successors, (6432), 4 states have internal predecessors, (6432), 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)
[2023-08-30 19:09:05,070 INFO L175 Difference]: Start difference. First operand has 88 places, 142 transitions, 1256 flow. Second operand 3 states and 2076 transitions.
[2023-08-30 19:09:05,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 188 transitions, 1949 flow
[2023-08-30 19:09:05,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 188 transitions, 1940 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-30 19:09:05,177 INFO L231 Difference]: Finished difference. Result has 90 places, 141 transitions, 1275 flow
[2023-08-30 19:09:05,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=1238, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1275, PETRI_PLACES=90, PETRI_TRANSITIONS=141}
[2023-08-30 19:09:05,178 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 44 predicate places.
[2023-08-30 19:09:05,178 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 141 transitions, 1275 flow
[2023-08-30 19:09:05,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 673.6666666666666) internal successors, (2021), 3 states have internal predecessors, (2021), 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)
[2023-08-30 19:09:05,178 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:05,178 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:05,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-08-30 19:09:05,179 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:05,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:05,179 INFO L85 PathProgramCache]: Analyzing trace with hash 937813535, now seen corresponding path program 1 times
[2023-08-30 19:09:05,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:05,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202215885]
[2023-08-30 19:09:05,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:05,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:05,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:05,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202215885]
[2023-08-30 19:09:05,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202215885] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:05,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:05,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-30 19:09:05,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724993669]
[2023-08-30 19:09:05,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:05,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-30 19:09:05,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:05,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-30 19:09:05,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-30 19:09:05,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 666 out of 1608
[2023-08-30 19:09:05,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 141 transitions, 1275 flow. Second operand has 3 states, 3 states have (on average 673.6666666666666) internal successors, (2021), 3 states have internal predecessors, (2021), 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)
[2023-08-30 19:09:05,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:05,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 666 of 1608
[2023-08-30 19:09:05,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:08,891 INFO L130 PetriNetUnfolder]: 17332/24411 cut-off events.
[2023-08-30 19:09:08,891 INFO L131 PetriNetUnfolder]: For 81239/81239 co-relation queries the response was YES.
[2023-08-30 19:09:08,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93256 conditions, 24411 events. 17332/24411 cut-off events. For 81239/81239 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 133043 event pairs, 8161 based on Foata normal form. 412/21791 useless extension candidates. Maximal degree in co-relation 93145. Up to 16188 conditions per place.
[2023-08-30 19:09:09,017 INFO L137 encePairwiseOnDemand]: 1604/1608 looper letters, 182 selfloop transitions, 8 changer transitions 0/190 dead transitions.
[2023-08-30 19:09:09,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 190 transitions, 2024 flow
[2023-08-30 19:09:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-30 19:09:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-30 19:09:09,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2074 transitions.
[2023-08-30 19:09:09,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4299336650082919
[2023-08-30 19:09:09,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2074 transitions.
[2023-08-30 19:09:09,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2074 transitions.
[2023-08-30 19:09:09,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:09,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2074 transitions.
[2023-08-30 19:09:09,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 691.3333333333334) internal successors, (2074), 3 states have internal predecessors, (2074), 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)
[2023-08-30 19:09:09,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1608.0) internal successors, (6432), 4 states have internal predecessors, (6432), 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)
[2023-08-30 19:09:09,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1608.0) internal successors, (6432), 4 states have internal predecessors, (6432), 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)
[2023-08-30 19:09:09,027 INFO L175 Difference]: Start difference. First operand has 90 places, 141 transitions, 1275 flow. Second operand 3 states and 2074 transitions.
[2023-08-30 19:09:09,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 190 transitions, 2024 flow
[2023-08-30 19:09:09,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 190 transitions, 1995 flow, removed 6 selfloop flow, removed 1 redundant places.
[2023-08-30 19:09:09,177 INFO L231 Difference]: Finished difference. Result has 92 places, 138 transitions, 1237 flow
[2023-08-30 19:09:09,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=1199, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1237, PETRI_PLACES=92, PETRI_TRANSITIONS=138}
[2023-08-30 19:09:09,177 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 46 predicate places.
[2023-08-30 19:09:09,177 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 138 transitions, 1237 flow
[2023-08-30 19:09:09,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 673.6666666666666) internal successors, (2021), 3 states have internal predecessors, (2021), 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)
[2023-08-30 19:09:09,178 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:09,178 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:09,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-08-30 19:09:09,178 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:09,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:09,179 INFO L85 PathProgramCache]: Analyzing trace with hash 146834425, now seen corresponding path program 1 times
[2023-08-30 19:09:09,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:09,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452726664]
[2023-08-30 19:09:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:09,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked.
[2023-08-30 19:09:09,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:09,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452726664]
[2023-08-30 19:09:09,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452726664] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:09,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:09,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-30 19:09:09,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55206632]
[2023-08-30 19:09:09,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:09,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-30 19:09:09,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:09,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-30 19:09:09,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-08-30 19:09:09,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 660 out of 1608
[2023-08-30 19:09:09,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 138 transitions, 1237 flow. Second operand has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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)
[2023-08-30 19:09:09,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:09,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 660 of 1608
[2023-08-30 19:09:09,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:12,985 INFO L130 PetriNetUnfolder]: 17806/25153 cut-off events.
[2023-08-30 19:09:12,985 INFO L131 PetriNetUnfolder]: For 79892/79892 co-relation queries the response was YES.
[2023-08-30 19:09:13,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95789 conditions, 25153 events. 17806/25153 cut-off events. For 79892/79892 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 142677 event pairs, 4930 based on Foata normal form. 4/21961 useless extension candidates. Maximal degree in co-relation 95677. Up to 22762 conditions per place.
[2023-08-30 19:09:13,120 INFO L137 encePairwiseOnDemand]: 1604/1608 looper letters, 166 selfloop transitions, 11 changer transitions 29/206 dead transitions.
[2023-08-30 19:09:13,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 206 transitions, 2100 flow
[2023-08-30 19:09:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-08-30 19:09:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-30 19:09:13,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2735 transitions.
[2023-08-30 19:09:13,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4252176616915423
[2023-08-30 19:09:13,125 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2735 transitions.
[2023-08-30 19:09:13,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2735 transitions.
[2023-08-30 19:09:13,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:13,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2735 transitions.
[2023-08-30 19:09:13,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 683.75) internal successors, (2735), 4 states have internal predecessors, (2735), 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)
[2023-08-30 19:09:13,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:13,131 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:13,131 INFO L175 Difference]: Start difference. First operand has 92 places, 138 transitions, 1237 flow. Second operand 4 states and 2735 transitions.
[2023-08-30 19:09:13,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 206 transitions, 2100 flow
[2023-08-30 19:09:13,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 206 transitions, 2084 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-30 19:09:13,250 INFO L231 Difference]: Finished difference. Result has 97 places, 143 transitions, 1338 flow
[2023-08-30 19:09:13,250 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=1229, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1338, PETRI_PLACES=97, PETRI_TRANSITIONS=143}
[2023-08-30 19:09:13,250 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 51 predicate places.
[2023-08-30 19:09:13,251 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 143 transitions, 1338 flow
[2023-08-30 19:09:13,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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)
[2023-08-30 19:09:13,251 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:13,251 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:13,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-08-30 19:09:13,252 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:13,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1281119567, now seen corresponding path program 2 times
[2023-08-30 19:09:13,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:13,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536431521]
[2023-08-30 19:09:13,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:13,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:13,480 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked.
[2023-08-30 19:09:13,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536431521]
[2023-08-30 19:09:13,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536431521] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:13,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:13,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-30 19:09:13,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725747131]
[2023-08-30 19:09:13,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:13,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-30 19:09:13,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:13,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-30 19:09:13,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-08-30 19:09:13,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 660 out of 1608
[2023-08-30 19:09:13,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 143 transitions, 1338 flow. Second operand has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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)
[2023-08-30 19:09:13,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:13,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 660 of 1608
[2023-08-30 19:09:13,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:16,765 INFO L130 PetriNetUnfolder]: 16909/23851 cut-off events.
[2023-08-30 19:09:16,766 INFO L131 PetriNetUnfolder]: For 77336/77336 co-relation queries the response was YES.
[2023-08-30 19:09:16,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90507 conditions, 23851 events. 16909/23851 cut-off events. For 77336/77336 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 131000 event pairs, 10297 based on Foata normal form. 5/20840 useless extension candidates. Maximal degree in co-relation 90439. Up to 21826 conditions per place.
[2023-08-30 19:09:16,869 INFO L137 encePairwiseOnDemand]: 1605/1608 looper letters, 155 selfloop transitions, 4 changer transitions 37/196 dead transitions.
[2023-08-30 19:09:16,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 196 transitions, 1991 flow
[2023-08-30 19:09:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-08-30 19:09:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-30 19:09:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2733 transitions.
[2023-08-30 19:09:16,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42490671641791045
[2023-08-30 19:09:16,873 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2733 transitions.
[2023-08-30 19:09:16,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2733 transitions.
[2023-08-30 19:09:16,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:16,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2733 transitions.
[2023-08-30 19:09:16,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 683.25) internal successors, (2733), 4 states have internal predecessors, (2733), 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)
[2023-08-30 19:09:16,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:16,880 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:16,880 INFO L175 Difference]: Start difference. First operand has 97 places, 143 transitions, 1338 flow. Second operand 4 states and 2733 transitions.
[2023-08-30 19:09:16,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 196 transitions, 1991 flow
[2023-08-30 19:09:16,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 196 transitions, 1976 flow, removed 2 selfloop flow, removed 2 redundant places.
[2023-08-30 19:09:16,994 INFO L231 Difference]: Finished difference. Result has 98 places, 131 transitions, 1196 flow
[2023-08-30 19:09:16,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=1325, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1196, PETRI_PLACES=98, PETRI_TRANSITIONS=131}
[2023-08-30 19:09:16,994 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 52 predicate places.
[2023-08-30 19:09:16,994 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 131 transitions, 1196 flow
[2023-08-30 19:09:16,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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)
[2023-08-30 19:09:16,995 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:16,995 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:16,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-08-30 19:09:16,995 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:16,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:16,996 INFO L85 PathProgramCache]: Analyzing trace with hash -244449536, now seen corresponding path program 1 times
[2023-08-30 19:09:16,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:16,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337884573]
[2023-08-30 19:09:16,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:16,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:17,305 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:17,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:17,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337884573]
[2023-08-30 19:09:17,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337884573] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-30 19:09:17,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604581192]
[2023-08-30 19:09:17,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:17,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:09:17,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 19:09:17,326 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-30 19:09:17,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-08-30 19:09:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:17,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-08-30 19:09:17,521 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-08-30 19:09:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:17,572 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-08-30 19:09:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:17,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604581192] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-30 19:09:17,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-30 19:09:17,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8
[2023-08-30 19:09:17,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670319354]
[2023-08-30 19:09:17,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-30 19:09:17,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-08-30 19:09:17,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:17,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-08-30 19:09:17,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-08-30 19:09:17,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 638 out of 1608
[2023-08-30 19:09:17,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 131 transitions, 1196 flow. Second operand has 9 states, 9 states have (on average 645.6666666666666) internal successors, (5811), 9 states have internal predecessors, (5811), 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)
[2023-08-30 19:09:17,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:17,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 638 of 1608
[2023-08-30 19:09:17,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:21,789 INFO L130 PetriNetUnfolder]: 17414/24697 cut-off events.
[2023-08-30 19:09:21,790 INFO L131 PetriNetUnfolder]: For 77476/77476 co-relation queries the response was YES.
[2023-08-30 19:09:21,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93462 conditions, 24697 events. 17414/24697 cut-off events. For 77476/77476 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 137965 event pairs, 3924 based on Foata normal form. 4/21597 useless extension candidates. Maximal degree in co-relation 93391. Up to 11141 conditions per place.
[2023-08-30 19:09:21,943 INFO L137 encePairwiseOnDemand]: 1594/1608 looper letters, 259 selfloop transitions, 62 changer transitions 35/356 dead transitions.
[2023-08-30 19:09:21,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 356 transitions, 3292 flow
[2023-08-30 19:09:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2023-08-30 19:09:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states.
[2023-08-30 19:09:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 9176 transitions.
[2023-08-30 19:09:21,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4076048329779673
[2023-08-30 19:09:21,954 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 9176 transitions.
[2023-08-30 19:09:21,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 9176 transitions.
[2023-08-30 19:09:21,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:21,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 9176 transitions.
[2023-08-30 19:09:21,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 655.4285714285714) internal successors, (9176), 14 states have internal predecessors, (9176), 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)
[2023-08-30 19:09:21,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 1608.0) internal successors, (24120), 15 states have internal predecessors, (24120), 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)
[2023-08-30 19:09:21,973 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 1608.0) internal successors, (24120), 15 states have internal predecessors, (24120), 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)
[2023-08-30 19:09:21,973 INFO L175 Difference]: Start difference. First operand has 98 places, 131 transitions, 1196 flow. Second operand 14 states and 9176 transitions.
[2023-08-30 19:09:21,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 356 transitions, 3292 flow
[2023-08-30 19:09:22,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 356 transitions, 3250 flow, removed 17 selfloop flow, removed 3 redundant places.
[2023-08-30 19:09:22,179 INFO L231 Difference]: Finished difference. Result has 112 places, 161 transitions, 1745 flow
[2023-08-30 19:09:22,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1745, PETRI_PLACES=112, PETRI_TRANSITIONS=161}
[2023-08-30 19:09:22,180 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 66 predicate places.
[2023-08-30 19:09:22,180 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 161 transitions, 1745 flow
[2023-08-30 19:09:22,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 645.6666666666666) internal successors, (5811), 9 states have internal predecessors, (5811), 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)
[2023-08-30 19:09:22,181 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:22,181 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:22,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-08-30 19:09:22,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2023-08-30 19:09:22,387 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:22,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:22,388 INFO L85 PathProgramCache]: Analyzing trace with hash 939975353, now seen corresponding path program 1 times
[2023-08-30 19:09:22,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:22,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448691479]
[2023-08-30 19:09:22,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:22,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:22,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:22,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448691479]
[2023-08-30 19:09:22,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448691479] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-30 19:09:22,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956124231]
[2023-08-30 19:09:22,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:22,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:09:22,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 19:09:22,602 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-30 19:09:22,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-08-30 19:09:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:22,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-08-30 19:09:22,791 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-08-30 19:09:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:22,884 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-08-30 19:09:23,037 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:23,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956124231] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-30 19:09:23,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-30 19:09:23,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5
[2023-08-30 19:09:23,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895433489]
[2023-08-30 19:09:23,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-30 19:09:23,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-08-30 19:09:23,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:23,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-08-30 19:09:23,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-08-30 19:09:23,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 660 out of 1608
[2023-08-30 19:09:23,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 161 transitions, 1745 flow. Second operand has 6 states, 6 states have (on average 667.6666666666666) internal successors, (4006), 6 states have internal predecessors, (4006), 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)
[2023-08-30 19:09:23,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:23,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 660 of 1608
[2023-08-30 19:09:23,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:26,642 INFO L130 PetriNetUnfolder]: 17516/24962 cut-off events.
[2023-08-30 19:09:26,642 INFO L131 PetriNetUnfolder]: For 100253/100253 co-relation queries the response was YES.
[2023-08-30 19:09:26,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98038 conditions, 24962 events. 17516/24962 cut-off events. For 100253/100253 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 141460 event pairs, 3642 based on Foata normal form. 3/21839 useless extension candidates. Maximal degree in co-relation 97966. Up to 20872 conditions per place.
[2023-08-30 19:09:26,811 INFO L137 encePairwiseOnDemand]: 1604/1608 looper letters, 149 selfloop transitions, 12 changer transitions 63/224 dead transitions.
[2023-08-30 19:09:26,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 224 transitions, 2603 flow
[2023-08-30 19:09:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-08-30 19:09:26,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-30 19:09:26,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2741 transitions.
[2023-08-30 19:09:26,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42615049751243783
[2023-08-30 19:09:26,816 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2741 transitions.
[2023-08-30 19:09:26,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2741 transitions.
[2023-08-30 19:09:26,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:26,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2741 transitions.
[2023-08-30 19:09:26,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 685.25) internal successors, (2741), 4 states have internal predecessors, (2741), 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)
[2023-08-30 19:09:26,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:26,822 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:26,822 INFO L175 Difference]: Start difference. First operand has 112 places, 161 transitions, 1745 flow. Second operand 4 states and 2741 transitions.
[2023-08-30 19:09:26,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 224 transitions, 2603 flow
[2023-08-30 19:09:27,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 224 transitions, 2533 flow, removed 35 selfloop flow, removed 1 redundant places.
[2023-08-30 19:09:27,138 INFO L231 Difference]: Finished difference. Result has 116 places, 136 transitions, 1435 flow
[2023-08-30 19:09:27,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=1679, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1435, PETRI_PLACES=116, PETRI_TRANSITIONS=136}
[2023-08-30 19:09:27,139 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 70 predicate places.
[2023-08-30 19:09:27,139 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 136 transitions, 1435 flow
[2023-08-30 19:09:27,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 667.6666666666666) internal successors, (4006), 6 states have internal predecessors, (4006), 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)
[2023-08-30 19:09:27,139 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:27,140 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:27,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-08-30 19:09:27,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2023-08-30 19:09:27,345 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:27,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:27,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2101200279, now seen corresponding path program 2 times
[2023-08-30 19:09:27,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:27,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184799431]
[2023-08-30 19:09:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:27,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:27,608 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked.
[2023-08-30 19:09:27,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:27,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184799431]
[2023-08-30 19:09:27,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184799431] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:27,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:27,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-30 19:09:27,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176447636]
[2023-08-30 19:09:27,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:27,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-30 19:09:27,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:27,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-30 19:09:27,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-08-30 19:09:27,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 660 out of 1608
[2023-08-30 19:09:27,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 136 transitions, 1435 flow. Second operand has 4 states, 4 states have (on average 667.5) internal successors, (2670), 4 states have internal predecessors, (2670), 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)
[2023-08-30 19:09:27,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:27,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 660 of 1608
[2023-08-30 19:09:27,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:30,761 INFO L130 PetriNetUnfolder]: 15133/21478 cut-off events.
[2023-08-30 19:09:30,761 INFO L131 PetriNetUnfolder]: For 79389/79389 co-relation queries the response was YES.
[2023-08-30 19:09:30,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80846 conditions, 21478 events. 15133/21478 cut-off events. For 79389/79389 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 117789 event pairs, 8830 based on Foata normal form. 4/18652 useless extension candidates. Maximal degree in co-relation 80784. Up to 18757 conditions per place.
[2023-08-30 19:09:30,861 INFO L137 encePairwiseOnDemand]: 1605/1608 looper letters, 128 selfloop transitions, 3 changer transitions 58/189 dead transitions.
[2023-08-30 19:09:30,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 189 transitions, 2126 flow
[2023-08-30 19:09:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-08-30 19:09:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-30 19:09:30,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2737 transitions.
[2023-08-30 19:09:30,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42552860696517414
[2023-08-30 19:09:30,893 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2737 transitions.
[2023-08-30 19:09:30,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2737 transitions.
[2023-08-30 19:09:30,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:30,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2737 transitions.
[2023-08-30 19:09:30,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 684.25) internal successors, (2737), 4 states have internal predecessors, (2737), 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)
[2023-08-30 19:09:30,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:30,899 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:30,899 INFO L175 Difference]: Start difference. First operand has 116 places, 136 transitions, 1435 flow. Second operand 4 states and 2737 transitions.
[2023-08-30 19:09:30,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 189 transitions, 2126 flow
[2023-08-30 19:09:31,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 189 transitions, 2056 flow, removed 29 selfloop flow, removed 4 redundant places.
[2023-08-30 19:09:31,008 INFO L231 Difference]: Finished difference. Result has 109 places, 113 transitions, 1011 flow
[2023-08-30 19:09:31,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=1387, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1011, PETRI_PLACES=109, PETRI_TRANSITIONS=113}
[2023-08-30 19:09:31,009 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 63 predicate places.
[2023-08-30 19:09:31,009 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 113 transitions, 1011 flow
[2023-08-30 19:09:31,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 667.5) internal successors, (2670), 4 states have internal predecessors, (2670), 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)
[2023-08-30 19:09:31,010 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:31,010 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:31,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-08-30 19:09:31,010 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:31,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:31,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2049052014, now seen corresponding path program 2 times
[2023-08-30 19:09:31,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:31,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457615992]
[2023-08-30 19:09:31,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:31,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:31,279 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked.
[2023-08-30 19:09:31,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:31,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457615992]
[2023-08-30 19:09:31,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457615992] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:31,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:31,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-30 19:09:31,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539740953]
[2023-08-30 19:09:31,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:31,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-30 19:09:31,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:31,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-30 19:09:31,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-08-30 19:09:31,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 1608
[2023-08-30 19:09:31,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 113 transitions, 1011 flow. Second operand has 5 states, 5 states have (on average 653.0) internal successors, (3265), 5 states have internal predecessors, (3265), 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)
[2023-08-30 19:09:31,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:31,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 1608
[2023-08-30 19:09:31,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:34,209 INFO L130 PetriNetUnfolder]: 13744/19200 cut-off events.
[2023-08-30 19:09:34,210 INFO L131 PetriNetUnfolder]: For 60014/60014 co-relation queries the response was YES.
[2023-08-30 19:09:34,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71251 conditions, 19200 events. 13744/19200 cut-off events. For 60014/60014 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 99419 event pairs, 3970 based on Foata normal form. 1/16577 useless extension candidates. Maximal degree in co-relation 71215. Up to 10228 conditions per place.
[2023-08-30 19:09:34,303 INFO L137 encePairwiseOnDemand]: 1598/1608 looper letters, 140 selfloop transitions, 30 changer transitions 21/191 dead transitions.
[2023-08-30 19:09:34,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 191 transitions, 1813 flow
[2023-08-30 19:09:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-30 19:09:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-30 19:09:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3356 transitions.
[2023-08-30 19:09:34,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4174129353233831
[2023-08-30 19:09:34,307 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3356 transitions.
[2023-08-30 19:09:34,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3356 transitions.
[2023-08-30 19:09:34,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:34,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3356 transitions.
[2023-08-30 19:09:34,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 671.2) internal successors, (3356), 5 states have internal predecessors, (3356), 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)
[2023-08-30 19:09:34,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:09:34,342 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:09:34,342 INFO L175 Difference]: Start difference. First operand has 109 places, 113 transitions, 1011 flow. Second operand 5 states and 3356 transitions.
[2023-08-30 19:09:34,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 191 transitions, 1813 flow
[2023-08-30 19:09:34,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 191 transitions, 1682 flow, removed 52 selfloop flow, removed 7 redundant places.
[2023-08-30 19:09:34,485 INFO L231 Difference]: Finished difference. Result has 102 places, 115 transitions, 1055 flow
[2023-08-30 19:09:34,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1055, PETRI_PLACES=102, PETRI_TRANSITIONS=115}
[2023-08-30 19:09:34,486 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 56 predicate places.
[2023-08-30 19:09:34,486 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 115 transitions, 1055 flow
[2023-08-30 19:09:34,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 653.0) internal successors, (3265), 5 states have internal predecessors, (3265), 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)
[2023-08-30 19:09:34,486 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:34,486 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:34,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-08-30 19:09:34,487 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:34,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:34,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1385030174, now seen corresponding path program 3 times
[2023-08-30 19:09:34,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:34,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313703686]
[2023-08-30 19:09:34,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:34,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked.
[2023-08-30 19:09:34,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:34,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313703686]
[2023-08-30 19:09:34,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313703686] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:34,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:34,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-30 19:09:34,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964352834]
[2023-08-30 19:09:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:34,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-30 19:09:34,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:34,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-30 19:09:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-08-30 19:09:34,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 646 out of 1608
[2023-08-30 19:09:34,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 115 transitions, 1055 flow. Second operand has 5 states, 5 states have (on average 652.0) internal successors, (3260), 5 states have internal predecessors, (3260), 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)
[2023-08-30 19:09:34,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:34,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 646 of 1608
[2023-08-30 19:09:34,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:37,619 INFO L130 PetriNetUnfolder]: 13803/19295 cut-off events.
[2023-08-30 19:09:37,619 INFO L131 PetriNetUnfolder]: For 54068/54068 co-relation queries the response was YES.
[2023-08-30 19:09:37,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70466 conditions, 19295 events. 13803/19295 cut-off events. For 54068/54068 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 100053 event pairs, 4074 based on Foata normal form. 3/16634 useless extension candidates. Maximal degree in co-relation 70433. Up to 10414 conditions per place.
[2023-08-30 19:09:37,711 INFO L137 encePairwiseOnDemand]: 1597/1608 looper letters, 141 selfloop transitions, 29 changer transitions 10/180 dead transitions.
[2023-08-30 19:09:37,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 180 transitions, 1718 flow
[2023-08-30 19:09:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-30 19:09:37,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-30 19:09:37,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3341 transitions.
[2023-08-30 19:09:37,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41554726368159206
[2023-08-30 19:09:37,731 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3341 transitions.
[2023-08-30 19:09:37,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3341 transitions.
[2023-08-30 19:09:37,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:37,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3341 transitions.
[2023-08-30 19:09:37,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 668.2) internal successors, (3341), 5 states have internal predecessors, (3341), 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)
[2023-08-30 19:09:37,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:09:37,757 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1608.0) internal successors, (9648), 6 states have internal predecessors, (9648), 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)
[2023-08-30 19:09:37,757 INFO L175 Difference]: Start difference. First operand has 102 places, 115 transitions, 1055 flow. Second operand 5 states and 3341 transitions.
[2023-08-30 19:09:37,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 180 transitions, 1718 flow
[2023-08-30 19:09:37,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 180 transitions, 1672 flow, removed 13 selfloop flow, removed 3 redundant places.
[2023-08-30 19:09:37,864 INFO L231 Difference]: Finished difference. Result has 103 places, 114 transitions, 1027 flow
[2023-08-30 19:09:37,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1027, PETRI_PLACES=103, PETRI_TRANSITIONS=114}
[2023-08-30 19:09:37,864 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 57 predicate places.
[2023-08-30 19:09:37,865 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 114 transitions, 1027 flow
[2023-08-30 19:09:37,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 652.0) internal successors, (3260), 5 states have internal predecessors, (3260), 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)
[2023-08-30 19:09:37,865 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:37,865 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:37,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-08-30 19:09:37,866 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:37,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:37,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1385637435, now seen corresponding path program 1 times
[2023-08-30 19:09:37,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:37,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705121207]
[2023-08-30 19:09:37,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:37,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:38,155 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked.
[2023-08-30 19:09:38,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:38,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705121207]
[2023-08-30 19:09:38,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705121207] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:38,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:38,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-30 19:09:38,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70450000]
[2023-08-30 19:09:38,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:38,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-30 19:09:38,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:38,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-30 19:09:38,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-08-30 19:09:38,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 1608
[2023-08-30 19:09:38,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 114 transitions, 1027 flow. Second operand has 4 states, 4 states have (on average 670.0) internal successors, (2680), 4 states have internal predecessors, (2680), 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)
[2023-08-30 19:09:38,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:38,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 1608
[2023-08-30 19:09:38,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:40,861 INFO L130 PetriNetUnfolder]: 13589/18915 cut-off events.
[2023-08-30 19:09:40,861 INFO L131 PetriNetUnfolder]: For 68131/68131 co-relation queries the response was YES.
[2023-08-30 19:09:40,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76499 conditions, 18915 events. 13589/18915 cut-off events. For 68131/68131 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 96930 event pairs, 8294 based on Foata normal form. 34/16323 useless extension candidates. Maximal degree in co-relation 76466. Up to 18039 conditions per place.
[2023-08-30 19:09:40,982 INFO L137 encePairwiseOnDemand]: 1605/1608 looper letters, 133 selfloop transitions, 6 changer transitions 3/142 dead transitions.
[2023-08-30 19:09:40,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 142 transitions, 1435 flow
[2023-08-30 19:09:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-08-30 19:09:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-30 19:09:40,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2722 transitions.
[2023-08-30 19:09:40,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42319651741293535
[2023-08-30 19:09:40,985 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2722 transitions.
[2023-08-30 19:09:40,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2722 transitions.
[2023-08-30 19:09:40,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:40,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2722 transitions.
[2023-08-30 19:09:40,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 680.5) internal successors, (2722), 4 states have internal predecessors, (2722), 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)
[2023-08-30 19:09:40,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:40,990 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:40,990 INFO L175 Difference]: Start difference. First operand has 103 places, 114 transitions, 1027 flow. Second operand 4 states and 2722 transitions.
[2023-08-30 19:09:40,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 142 transitions, 1435 flow
[2023-08-30 19:09:41,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 142 transitions, 1312 flow, removed 40 selfloop flow, removed 6 redundant places.
[2023-08-30 19:09:41,122 INFO L231 Difference]: Finished difference. Result has 94 places, 112 transitions, 900 flow
[2023-08-30 19:09:41,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=900, PETRI_PLACES=94, PETRI_TRANSITIONS=112}
[2023-08-30 19:09:41,124 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 48 predicate places.
[2023-08-30 19:09:41,124 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 112 transitions, 900 flow
[2023-08-30 19:09:41,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 670.0) internal successors, (2680), 4 states have internal predecessors, (2680), 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)
[2023-08-30 19:09:41,124 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:41,125 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:41,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-08-30 19:09:41,125 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:41,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:41,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1997501473, now seen corresponding path program 2 times
[2023-08-30 19:09:41,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:41,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551815512]
[2023-08-30 19:09:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:41,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:41,506 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked.
[2023-08-30 19:09:41,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:41,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551815512]
[2023-08-30 19:09:41,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551815512] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:41,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:41,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-30 19:09:41,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866501346]
[2023-08-30 19:09:41,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:41,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-30 19:09:41,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:41,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-30 19:09:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-08-30 19:09:41,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 1608
[2023-08-30 19:09:41,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 112 transitions, 900 flow. Second operand has 4 states, 4 states have (on average 670.0) internal successors, (2680), 4 states have internal predecessors, (2680), 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)
[2023-08-30 19:09:41,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:41,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 1608
[2023-08-30 19:09:41,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:44,143 INFO L130 PetriNetUnfolder]: 13367/18525 cut-off events.
[2023-08-30 19:09:44,143 INFO L131 PetriNetUnfolder]: For 51781/51781 co-relation queries the response was YES.
[2023-08-30 19:09:44,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70249 conditions, 18525 events. 13367/18525 cut-off events. For 51781/51781 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 93742 event pairs, 8230 based on Foata normal form. 6/15959 useless extension candidates. Maximal degree in co-relation 70220. Up to 18039 conditions per place.
[2023-08-30 19:09:44,233 INFO L137 encePairwiseOnDemand]: 1605/1608 looper letters, 129 selfloop transitions, 1 changer transitions 8/138 dead transitions.
[2023-08-30 19:09:44,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 138 transitions, 1277 flow
[2023-08-30 19:09:44,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-08-30 19:09:44,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-30 19:09:44,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2720 transitions.
[2023-08-30 19:09:44,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4228855721393035
[2023-08-30 19:09:44,236 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2720 transitions.
[2023-08-30 19:09:44,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2720 transitions.
[2023-08-30 19:09:44,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:44,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2720 transitions.
[2023-08-30 19:09:44,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 680.0) internal successors, (2720), 4 states have internal predecessors, (2720), 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)
[2023-08-30 19:09:44,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:44,241 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:44,241 INFO L175 Difference]: Start difference. First operand has 94 places, 112 transitions, 900 flow. Second operand 4 states and 2720 transitions.
[2023-08-30 19:09:44,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 138 transitions, 1277 flow
[2023-08-30 19:09:44,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 138 transitions, 1275 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-30 19:09:44,326 INFO L231 Difference]: Finished difference. Result has 96 places, 108 transitions, 840 flow
[2023-08-30 19:09:44,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=840, PETRI_PLACES=96, PETRI_TRANSITIONS=108}
[2023-08-30 19:09:44,326 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 50 predicate places.
[2023-08-30 19:09:44,327 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 108 transitions, 840 flow
[2023-08-30 19:09:44,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 670.0) internal successors, (2680), 4 states have internal predecessors, (2680), 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)
[2023-08-30 19:09:44,327 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:44,327 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:44,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-08-30 19:09:44,328 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:44,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:44,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1082557347, now seen corresponding path program 3 times
[2023-08-30 19:09:44,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:44,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723299137]
[2023-08-30 19:09:44,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:44,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked.
[2023-08-30 19:09:44,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:44,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723299137]
[2023-08-30 19:09:44,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723299137] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 19:09:44,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 19:09:44,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-30 19:09:44,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913218695]
[2023-08-30 19:09:44,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 19:09:44,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-30 19:09:44,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:44,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-30 19:09:44,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-08-30 19:09:44,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 663 out of 1608
[2023-08-30 19:09:44,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 108 transitions, 840 flow. Second operand has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 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)
[2023-08-30 19:09:44,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:44,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 663 of 1608
[2023-08-30 19:09:44,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:47,164 INFO L130 PetriNetUnfolder]: 13084/18059 cut-off events.
[2023-08-30 19:09:47,165 INFO L131 PetriNetUnfolder]: For 48835/48835 co-relation queries the response was YES.
[2023-08-30 19:09:47,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68447 conditions, 18059 events. 13084/18059 cut-off events. For 48835/48835 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 90097 event pairs, 2975 based on Foata normal form. 10/15587 useless extension candidates. Maximal degree in co-relation 68418. Up to 17847 conditions per place.
[2023-08-30 19:09:47,259 INFO L137 encePairwiseOnDemand]: 1604/1608 looper letters, 111 selfloop transitions, 4 changer transitions 7/122 dead transitions.
[2023-08-30 19:09:47,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 122 transitions, 1099 flow
[2023-08-30 19:09:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-08-30 19:09:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-30 19:09:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2719 transitions.
[2023-08-30 19:09:47,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4227300995024876
[2023-08-30 19:09:47,261 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2719 transitions.
[2023-08-30 19:09:47,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2719 transitions.
[2023-08-30 19:09:47,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:09:47,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2719 transitions.
[2023-08-30 19:09:47,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 679.75) internal successors, (2719), 4 states have internal predecessors, (2719), 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)
[2023-08-30 19:09:47,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:47,267 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1608.0) internal successors, (8040), 5 states have internal predecessors, (8040), 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)
[2023-08-30 19:09:47,267 INFO L175 Difference]: Start difference. First operand has 96 places, 108 transitions, 840 flow. Second operand 4 states and 2719 transitions.
[2023-08-30 19:09:47,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 122 transitions, 1099 flow
[2023-08-30 19:09:47,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 122 transitions, 1041 flow, removed 9 selfloop flow, removed 4 redundant places.
[2023-08-30 19:09:47,463 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 694 flow
[2023-08-30 19:09:47,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=694, PETRI_PLACES=92, PETRI_TRANSITIONS=99}
[2023-08-30 19:09:47,464 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 46 predicate places.
[2023-08-30 19:09:47,464 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 694 flow
[2023-08-30 19:09:47,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 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)
[2023-08-30 19:09:47,464 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:09:47,465 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:09:47,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-08-30 19:09:47,465 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:09:47,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:09:47,465 INFO L85 PathProgramCache]: Analyzing trace with hash 275559464, now seen corresponding path program 1 times
[2023-08-30 19:09:47,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:09:47,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814233119]
[2023-08-30 19:09:47,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:47,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:09:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:49,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:09:49,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814233119]
[2023-08-30 19:09:49,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814233119] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-30 19:09:49,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619295339]
[2023-08-30 19:09:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:09:49,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:09:49,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 19:09:49,519 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-30 19:09:49,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-08-30 19:09:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:09:49,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 32 conjunts are in the unsatisfiable core
[2023-08-30 19:09:49,834 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-08-30 19:09:50,030 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-08-30 19:09:50,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23
[2023-08-30 19:09:50,416 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked.
[2023-08-30 19:09:50,416 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-08-30 19:09:51,979 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (forall ((~ends_with_6~0.base Int) (v_ArrVal_1507 (Array Int Int))) (< 0 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1507) ~ends_with_6~0.base) c_~ends_with_6~0.offset) 256))))) (and (forall ((v_ArrVal_1507 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1507))) (or (= (mod (select (select .cse0 c_~ends_with_2~0.base) (+ c_~i_13~0 c_~ends_with_2~0.offset)) 256) 0) (forall ((~ends_with_6~0.base Int)) (< 0 (mod (select (select .cse0 ~ends_with_6~0.base) c_~ends_with_6~0.offset) 256)))))) (or (< c_~i_13~0 4) .cse1) (or (= (mod (mod c_~break_14~0 256) 4294967296) 0) .cse1) (forall ((~ends_with_6~0.base Int) (v_ArrVal_1507 (Array Int Int))) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1507) ~ends_with_6~0.base))) (or (= (mod (select .cse2 (+ c_~i_13~0 c_~ends_with_6~0.offset)) 256) 0) (< 0 (mod (select .cse2 c_~ends_with_6~0.offset) 256))))))) is different from false
[2023-08-30 19:09:52,253 INFO L321 Elim1Store]: treesize reduction 11, result has 83.1 percent of original size
[2023-08-30 19:09:52,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 158
[2023-08-30 19:09:52,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-08-30 19:09:52,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 93
[2023-08-30 19:09:52,310 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-08-30 19:09:52,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 85
[2023-08-30 19:09:52,838 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:09:52,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619295339] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-30 19:09:52,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-30 19:09:52,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 15] total 39
[2023-08-30 19:09:52,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580173610]
[2023-08-30 19:09:52,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-30 19:09:52,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states
[2023-08-30 19:09:52,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 19:09:52,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants.
[2023-08-30 19:09:52,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1292, Unknown=5, NotChecked=74, Total=1560
[2023-08-30 19:09:53,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 530 out of 1608
[2023-08-30 19:09:53,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 99 transitions, 694 flow. Second operand has 40 states, 40 states have (on average 532.75) internal successors, (21310), 40 states have internal predecessors, (21310), 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)
[2023-08-30 19:09:53,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 19:09:53,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 530 of 1608
[2023-08-30 19:09:53,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 19:09:56,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2023-08-30 19:09:59,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2023-08-30 19:10:01,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2023-08-30 19:10:36,321 INFO L130 PetriNetUnfolder]: 83697/115792 cut-off events.
[2023-08-30 19:10:36,321 INFO L131 PetriNetUnfolder]: For 220404/220404 co-relation queries the response was YES.
[2023-08-30 19:10:36,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421637 conditions, 115792 events. 83697/115792 cut-off events. For 220404/220404 co-relation queries the response was YES. Maximal size of possible extension queue 2866. Compared 751855 event pairs, 6629 based on Foata normal form. 9/98941 useless extension candidates. Maximal degree in co-relation 421610. Up to 30687 conditions per place.
[2023-08-30 19:10:37,274 INFO L137 encePairwiseOnDemand]: 1575/1608 looper letters, 2046 selfloop transitions, 685 changer transitions 551/3282 dead transitions.
[2023-08-30 19:10:37,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 3282 transitions, 26785 flow
[2023-08-30 19:10:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states.
[2023-08-30 19:10:37,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states.
[2023-08-30 19:10:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 75777 transitions.
[2023-08-30 19:10:37,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33902877697841727
[2023-08-30 19:10:37,452 INFO L72 ComplementDD]: Start complementDD. Operand 139 states and 75777 transitions.
[2023-08-30 19:10:37,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 75777 transitions.
[2023-08-30 19:10:37,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 19:10:37,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 139 states and 75777 transitions.
[2023-08-30 19:10:37,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 140 states, 139 states have (on average 545.158273381295) internal successors, (75777), 139 states have internal predecessors, (75777), 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)
[2023-08-30 19:10:37,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 140 states, 140 states have (on average 1608.0) internal successors, (225120), 140 states have internal predecessors, (225120), 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)
[2023-08-30 19:10:37,645 INFO L81 ComplementDD]: Finished complementDD. Result has 140 states, 140 states have (on average 1608.0) internal successors, (225120), 140 states have internal predecessors, (225120), 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)
[2023-08-30 19:10:37,645 INFO L175 Difference]: Start difference. First operand has 92 places, 99 transitions, 694 flow. Second operand 139 states and 75777 transitions.
[2023-08-30 19:10:37,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 3282 transitions, 26785 flow
[2023-08-30 19:10:51,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 3282 transitions, 26409 flow, removed 164 selfloop flow, removed 2 redundant places.
[2023-08-30 19:10:51,426 INFO L231 Difference]: Finished difference. Result has 322 places, 848 transitions, 8827 flow
[2023-08-30 19:10:51,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1608, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=139, PETRI_FLOW=8827, PETRI_PLACES=322, PETRI_TRANSITIONS=848}
[2023-08-30 19:10:51,427 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 276 predicate places.
[2023-08-30 19:10:51,427 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 848 transitions, 8827 flow
[2023-08-30 19:10:51,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 532.75) internal successors, (21310), 40 states have internal predecessors, (21310), 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)
[2023-08-30 19:10:51,430 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 19:10:51,430 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-30 19:10:51,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-08-30 19:10:51,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:10:51,636 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2023-08-30 19:10:51,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 19:10:51,637 INFO L85 PathProgramCache]: Analyzing trace with hash -923697284, now seen corresponding path program 2 times
[2023-08-30 19:10:51,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 19:10:51,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485871944]
[2023-08-30 19:10:51,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 19:10:51,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 19:10:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 19:10:53,609 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked.
[2023-08-30 19:10:53,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 19:10:53,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485871944]
[2023-08-30 19:10:53,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485871944] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-30 19:10:53,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676998355]
[2023-08-30 19:10:53,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-08-30 19:10:53,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-30 19:10:53,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 19:10:53,622 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-30 19:10:53,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-08-30 19:10:53,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-08-30 19:10:53,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-08-30 19:10:53,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 28 conjunts are in the unsatisfiable core
[2023-08-30 19:10:53,948 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2023-08-30 19:10:54,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25
[2023-08-30 19:10:54,891 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2023-08-30 19:10:54,892 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2023-08-30 19:10:57,264 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-08-30 19:10:57,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 113 treesize of output 444
Killed by 15