./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-atomic/lamport.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c35b909c90b92e30d40b0275e3d226db26dbebaf39dc73a31d7e72eee871d214 --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
[2023-08-29 19:46:29,787 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2023-08-29 19:46:29,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2023-08-29 19:46:29,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-08-29 19:46:29,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-08-29 19:46:29,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-08-29 19:46:29,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-08-29 19:46:29,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2023-08-29 19:46:29,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-08-29 19:46:29,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-08-29 19:46:29,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2023-08-29 19:46:29,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-08-29 19:46:29,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-08-29 19:46:29,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-08-29 19:46:29,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-08-29 19:46:29,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-08-29 19:46:29,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-08-29 19:46:29,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-08-29 19:46:29,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-08-29 19:46:29,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2023-08-29 19:46:29,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-08-29 19:46:29,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-08-29 19:46:29,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2023-08-29 19:46:29,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-08-29 19:46:29,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-08-29 19:46:29,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-08-29 19:46:29,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-08-29 19:46:29,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-08-29 19:46:29,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-08-29 19:46:29,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-08-29 19:46:29,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-08-29 19:46:29,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-08-29 19:46:29,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-08-29 19:46:29,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2023-08-29 19:46:29,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-08-29 19:46:29,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2023-08-29 19:46:29,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-08-29 19:46:29,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-08-29 19:46:29,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2023-08-29 19:46:29,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2023-08-29 19:46:29,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2023-08-29 19:46:29,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-08-29 19:46:29,889 INFO L113 SettingsManager]: Loading preferences was successful
[2023-08-29 19:46:29,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2023-08-29 19:46:29,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-08-29 19:46:29,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-08-29 19:46:29,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-08-29 19:46:29,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-08-29 19:46:29,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-08-29 19:46:29,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2023-08-29 19:46:29,891 INFO L138 SettingsManager]: * Use SBE=true
[2023-08-29 19:46:29,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-08-29 19:46:29,892 INFO L138 SettingsManager]: * sizeof long=4
[2023-08-29 19:46:29,892 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2023-08-29 19:46:29,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2023-08-29 19:46:29,892 INFO L138 SettingsManager]: * sizeof POINTER=4
[2023-08-29 19:46:29,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2023-08-29 19:46:29,892 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-08-29 19:46:29,893 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2023-08-29 19:46:29,893 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-08-29 19:46:29,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-08-29 19:46:29,893 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-08-29 19:46:29,893 INFO L138 SettingsManager]: * sizeof long double=12
[2023-08-29 19:46:29,893 INFO L138 SettingsManager]: * Use constant arrays=true
[2023-08-29 19:46:29,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-08-29 19:46:29,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-08-29 19:46:29,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2023-08-29 19:46:29,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-29 19:46:29,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-08-29 19:46:29,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-08-29 19:46:29,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-08-29 19:46:29,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-08-29 19:46:29,894 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-08-29 19:46:29,895 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-08-29 19:46:29,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-08-29 19:46:29,895 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-08-29 19:46:29,895 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c35b909c90b92e30d40b0275e3d226db26dbebaf39dc73a31d7e72eee871d214
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER
[2023-08-29 19:46:30,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-08-29 19:46:30,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-08-29 19:46:30,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-08-29 19:46:30,118 INFO L271 PluginConnector]: Initializing CDTParser...
[2023-08-29 19:46:30,118 INFO L275 PluginConnector]: CDTParser initialized
[2023-08-29 19:46:30,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i
[2023-08-29 19:46:30,990 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2023-08-29 19:46:31,184 INFO L351 CDTParser]: Found 1 translation units.
[2023-08-29 19:46:31,185 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i
[2023-08-29 19:46:31,198 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd47be871/975fb5a5a7ac40d3b89924f1c752c252/FLAG482671097
[2023-08-29 19:46:31,207 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd47be871/975fb5a5a7ac40d3b89924f1c752c252
[2023-08-29 19:46:31,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-08-29 19:46:31,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-08-29 19:46:31,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-08-29 19:46:31,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-08-29 19:46:31,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-08-29 19:46:31,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ec6680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31, skipping insertion in model container
[2023-08-29 19:46:31,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2023-08-29 19:46:31,249 INFO L178 MainTranslator]: Built tables and reachable declarations
[2023-08-29 19:46:31,374 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-08-29 19:46:31,487 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169]
[2023-08-29 19:46:31,493 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096]
[2023-08-29 19:46:31,500 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-29 19:46:31,514 INFO L203 MainTranslator]: Completed pre-run
[2023-08-29 19:46:31,530 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-08-29 19:46:31,551 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169]
[2023-08-29 19:46:31,557 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096]
[2023-08-29 19:46:31,563 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-29 19:46:31,589 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-08-29 19:46:31,590 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-08-29 19:46:31,590 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-08-29 19:46:31,594 INFO L208 MainTranslator]: Completed translation
[2023-08-29 19:46:31,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31 WrapperNode
[2023-08-29 19:46:31,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-08-29 19:46:31,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-08-29 19:46:31,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-08-29 19:46:31,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2023-08-29 19:46:31,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,639 INFO L138 Inliner]: procedures = 171, calls = 83, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44
[2023-08-29 19:46:31,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-08-29 19:46:31,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-08-29 19:46:31,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2023-08-29 19:46:31,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2023-08-29 19:46:31,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-08-29 19:46:31,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-08-29 19:46:31,673 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2023-08-29 19:46:31,673 INFO L275 PluginConnector]: RCFGBuilder initialized
[2023-08-29 19:46:31,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (1/1) ...
[2023-08-29 19:46:31,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-29 19:46:31,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-29 19:46:31,697 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)
[2023-08-29 19:46:31,716 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
[2023-08-29 19:46:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-08-29 19:46:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure thr2
[2023-08-29 19:46:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2
[2023-08-29 19:46:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2023-08-29 19:46:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2023-08-29 19:46:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-08-29 19:46:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-08-29 19:46:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-08-29 19:46:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-08-29 19:46:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-08-29 19:46:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-08-29 19:46:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-08-29 19:46:31,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-08-29 19:46:31,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-08-29 19:46:31,723 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-08-29 19:46:31,863 INFO L236 CfgBuilder]: Building ICFG
[2023-08-29 19:46:31,864 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-08-29 19:46:32,045 INFO L277 CfgBuilder]: Performing block encoding
[2023-08-29 19:46:32,050 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-08-29 19:46:32,052 INFO L302 CfgBuilder]: Removed 8 assume(true) statements.
[2023-08-29 19:46:32,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:46:32 BoogieIcfgContainer
[2023-08-29 19:46:32,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-08-29 19:46:32,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-08-29 19:46:32,055 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2023-08-29 19:46:32,057 INFO L275 PluginConnector]: TraceAbstraction initialized
[2023-08-29 19:46:32,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:46:31" (1/3) ...
[2023-08-29 19:46:32,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d433b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:46:32, skipping insertion in model container
[2023-08-29 19:46:32,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:46:31" (2/3) ...
[2023-08-29 19:46:32,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d433b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:46:32, skipping insertion in model container
[2023-08-29 19:46:32,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:46:32" (3/3) ...
[2023-08-29 19:46:32,059 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport.i
[2023-08-29 19:46:32,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-08-29 19:46:32,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations.
[2023-08-29 19:46:32,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-08-29 19:46:32,118 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-08-29 19:46:32,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 141 transitions, 298 flow
[2023-08-29 19:46:32,178 INFO L130 PetriNetUnfolder]: 24/139 cut-off events.
[2023-08-29 19:46:32,178 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-08-29 19:46:32,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 139 events. 24/139 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 300 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 101. Up to 5 conditions per place.
[2023-08-29 19:46:32,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 141 transitions, 298 flow
[2023-08-29 19:46:32,189 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 135 transitions, 282 flow
[2023-08-29 19:46:32,191 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-29 19:46:32,197 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 135 transitions, 282 flow
[2023-08-29 19:46:32,199 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 135 transitions, 282 flow
[2023-08-29 19:46:32,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 135 transitions, 282 flow
[2023-08-29 19:46:32,224 INFO L130 PetriNetUnfolder]: 24/135 cut-off events.
[2023-08-29 19:46:32,224 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-08-29 19:46:32,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 135 events. 24/135 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 298 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 101. Up to 5 conditions per place.
[2023-08-29 19:46:32,229 INFO L119 LiptonReduction]: Number of co-enabled transitions 5676
[2023-08-29 19:46:34,045 INFO L134 LiptonReduction]: Checked pairs total: 16119
[2023-08-29 19:46:34,046 INFO L136 LiptonReduction]: Total number of compositions: 96
[2023-08-29 19:46:34,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-29 19:46:34,059 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@5206c201, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-29 19:46:34,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations.
[2023-08-29 19:46:34,061 INFO L130 PetriNetUnfolder]: 0/0 cut-off events.
[2023-08-29 19:46:34,061 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-29 19:46:34,061 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:34,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1]
[2023-08-29 19:46:34,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:34,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:34,065 INFO L85 PathProgramCache]: Analyzing trace with hash 596, now seen corresponding path program 1 times
[2023-08-29 19:46:34,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:34,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929731420]
[2023-08-29 19:46:34,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:34,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:34,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:34,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929731420]
[2023-08-29 19:46:34,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929731420] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:34,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:34,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2023-08-29 19:46:34,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822036563]
[2023-08-29 19:46:34,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:34,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-08-29 19:46:34,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:34,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-08-29 19:46:34,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-08-29 19:46:34,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 237
[2023-08-29 19:46:34,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 73 transitions, 158 flow. Second operand has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 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)
[2023-08-29 19:46:34,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:34,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 237
[2023-08-29 19:46:34,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:34,438 INFO L130 PetriNetUnfolder]: 1891/3041 cut-off events.
[2023-08-29 19:46:34,439 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES.
[2023-08-29 19:46:34,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5722 conditions, 3041 events. 1891/3041 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 16691 event pairs, 1072 based on Foata normal form. 44/1864 useless extension candidates. Maximal degree in co-relation 5430. Up to 2638 conditions per place.
[2023-08-29 19:46:34,453 INFO L137 encePairwiseOnDemand]: 230/237 looper letters, 48 selfloop transitions, 0 changer transitions 0/66 dead transitions.
[2023-08-29 19:46:34,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 66 transitions, 240 flow
[2023-08-29 19:46:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-08-29 19:46:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-08-29 19:46:34,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 305 transitions.
[2023-08-29 19:46:34,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6434599156118144
[2023-08-29 19:46:34,462 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 305 transitions.
[2023-08-29 19:46:34,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 305 transitions.
[2023-08-29 19:46:34,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:34,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 305 transitions.
[2023-08-29 19:46:34,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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)
[2023-08-29 19:46:34,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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)
[2023-08-29 19:46:34,469 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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)
[2023-08-29 19:46:34,470 INFO L175 Difference]: Start difference. First operand has 63 places, 73 transitions, 158 flow. Second operand 2 states and 305 transitions.
[2023-08-29 19:46:34,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 66 transitions, 240 flow
[2023-08-29 19:46:34,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 66 transitions, 232 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-08-29 19:46:34,474 INFO L231 Difference]: Finished difference. Result has 58 places, 66 transitions, 136 flow
[2023-08-29 19:46:34,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=136, PETRI_PLACES=58, PETRI_TRANSITIONS=66}
[2023-08-29 19:46:34,477 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, -5 predicate places.
[2023-08-29 19:46:34,478 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 66 transitions, 136 flow
[2023-08-29 19:46:34,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 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)
[2023-08-29 19:46:34,478 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:34,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-08-29 19:46:34,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-08-29 19:46:34,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:34,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:34,479 INFO L85 PathProgramCache]: Analyzing trace with hash 589714, now seen corresponding path program 1 times
[2023-08-29 19:46:34,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:34,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506808141]
[2023-08-29 19:46:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:34,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:34,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:34,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506808141]
[2023-08-29 19:46:34,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506808141] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:34,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:34,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-29 19:46:34,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105407941]
[2023-08-29 19:46:34,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:34,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 19:46:34,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:34,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 19:46:34,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 19:46:34,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 237
[2023-08-29 19:46:34,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 66 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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)
[2023-08-29 19:46:34,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:34,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 237
[2023-08-29 19:46:34,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:34,854 INFO L130 PetriNetUnfolder]: 1854/2972 cut-off events.
[2023-08-29 19:46:34,854 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2023-08-29 19:46:34,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5563 conditions, 2972 events. 1854/2972 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 16204 event pairs, 1049 based on Foata normal form. 0/1789 useless extension candidates. Maximal degree in co-relation 5560. Up to 2574 conditions per place.
[2023-08-29 19:46:34,864 INFO L137 encePairwiseOnDemand]: 233/237 looper letters, 44 selfloop transitions, 2 changer transitions 0/64 dead transitions.
[2023-08-29 19:46:34,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 224 flow
[2023-08-29 19:46:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 19:46:34,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 19:46:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions.
[2023-08-29 19:46:34,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5611814345991561
[2023-08-29 19:46:34,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions.
[2023-08-29 19:46:34,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions.
[2023-08-29 19:46:34,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:34,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions.
[2023-08-29 19:46:34,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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)
[2023-08-29 19:46:34,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:34,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:34,874 INFO L175 Difference]: Start difference. First operand has 58 places, 66 transitions, 136 flow. Second operand 3 states and 399 transitions.
[2023-08-29 19:46:34,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 224 flow
[2023-08-29 19:46:34,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 224 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-29 19:46:34,876 INFO L231 Difference]: Finished difference. Result has 58 places, 64 transitions, 136 flow
[2023-08-29 19:46:34,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=58, PETRI_TRANSITIONS=64}
[2023-08-29 19:46:34,877 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, -5 predicate places.
[2023-08-29 19:46:34,877 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 64 transitions, 136 flow
[2023-08-29 19:46:34,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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)
[2023-08-29 19:46:34,878 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:34,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-08-29 19:46:34,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-08-29 19:46:34,878 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:34,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:34,880 INFO L85 PathProgramCache]: Analyzing trace with hash 589713, now seen corresponding path program 1 times
[2023-08-29 19:46:34,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:34,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360897216]
[2023-08-29 19:46:34,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:34,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:34,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:34,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360897216]
[2023-08-29 19:46:34,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360897216] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:34,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:34,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-29 19:46:34,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005535782]
[2023-08-29 19:46:34,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:34,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 19:46:34,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:34,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 19:46:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 19:46:34,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 237
[2023-08-29 19:46:34,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 64 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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)
[2023-08-29 19:46:34,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:34,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 237
[2023-08-29 19:46:34,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:35,113 INFO L130 PetriNetUnfolder]: 1817/2903 cut-off events.
[2023-08-29 19:46:35,114 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2023-08-29 19:46:35,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5435 conditions, 2903 events. 1817/2903 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 15760 event pairs, 1026 based on Foata normal form. 0/1758 useless extension candidates. Maximal degree in co-relation 5431. Up to 2512 conditions per place.
[2023-08-29 19:46:35,123 INFO L137 encePairwiseOnDemand]: 233/237 looper letters, 42 selfloop transitions, 2 changer transitions 0/62 dead transitions.
[2023-08-29 19:46:35,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 62 transitions, 220 flow
[2023-08-29 19:46:35,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 19:46:35,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 19:46:35,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions.
[2023-08-29 19:46:35,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5541490857946554
[2023-08-29 19:46:35,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions.
[2023-08-29 19:46:35,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions.
[2023-08-29 19:46:35,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:35,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions.
[2023-08-29 19:46:35,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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)
[2023-08-29 19:46:35,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,127 INFO L175 Difference]: Start difference. First operand has 58 places, 64 transitions, 136 flow. Second operand 3 states and 394 transitions.
[2023-08-29 19:46:35,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 62 transitions, 220 flow
[2023-08-29 19:46:35,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 62 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-08-29 19:46:35,129 INFO L231 Difference]: Finished difference. Result has 56 places, 62 transitions, 132 flow
[2023-08-29 19:46:35,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=56, PETRI_TRANSITIONS=62}
[2023-08-29 19:46:35,130 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, -7 predicate places.
[2023-08-29 19:46:35,130 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 62 transitions, 132 flow
[2023-08-29 19:46:35,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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)
[2023-08-29 19:46:35,131 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:35,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-08-29 19:46:35,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-08-29 19:46:35,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:35,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:35,132 INFO L85 PathProgramCache]: Analyzing trace with hash 566728316, now seen corresponding path program 1 times
[2023-08-29 19:46:35,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:35,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754095396]
[2023-08-29 19:46:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:35,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:35,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:35,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754095396]
[2023-08-29 19:46:35,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754095396] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:35,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:35,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-29 19:46:35,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193096415]
[2023-08-29 19:46:35,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:35,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-29 19:46:35,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:35,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-29 19:46:35,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-08-29 19:46:35,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 237
[2023-08-29 19:46:35,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 62 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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)
[2023-08-29 19:46:35,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:35,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 237
[2023-08-29 19:46:35,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:35,365 INFO L130 PetriNetUnfolder]: 1341/2173 cut-off events.
[2023-08-29 19:46:35,366 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2023-08-29 19:46:35,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4068 conditions, 2173 events. 1341/2173 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 11395 event pairs, 741 based on Foata normal form. 0/1388 useless extension candidates. Maximal degree in co-relation 4064. Up to 1875 conditions per place.
[2023-08-29 19:46:35,382 INFO L137 encePairwiseOnDemand]: 234/237 looper letters, 41 selfloop transitions, 2 changer transitions 0/61 dead transitions.
[2023-08-29 19:46:35,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 61 transitions, 216 flow
[2023-08-29 19:46:35,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 19:46:35,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 19:46:35,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions.
[2023-08-29 19:46:35,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344585091420534
[2023-08-29 19:46:35,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions.
[2023-08-29 19:46:35,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions.
[2023-08-29 19:46:35,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:35,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions.
[2023-08-29 19:46:35,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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)
[2023-08-29 19:46:35,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,390 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,390 INFO L175 Difference]: Start difference. First operand has 56 places, 62 transitions, 132 flow. Second operand 3 states and 380 transitions.
[2023-08-29 19:46:35,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 61 transitions, 216 flow
[2023-08-29 19:46:35,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 61 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-08-29 19:46:35,392 INFO L231 Difference]: Finished difference. Result has 55 places, 61 transitions, 130 flow
[2023-08-29 19:46:35,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=55, PETRI_TRANSITIONS=61}
[2023-08-29 19:46:35,393 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, -8 predicate places.
[2023-08-29 19:46:35,393 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 61 transitions, 130 flow
[2023-08-29 19:46:35,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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)
[2023-08-29 19:46:35,394 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:35,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-08-29 19:46:35,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-08-29 19:46:35,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:35,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash 566728317, now seen corresponding path program 1 times
[2023-08-29 19:46:35,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:35,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994862428]
[2023-08-29 19:46:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:35,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:35,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:35,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:35,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994862428]
[2023-08-29 19:46:35,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994862428] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:35,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:35,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-29 19:46:35,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763482056]
[2023-08-29 19:46:35,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:35,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 19:46:35,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:35,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 19:46:35,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 19:46:35,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 237
[2023-08-29 19:46:35,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 61 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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)
[2023-08-29 19:46:35,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:35,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 237
[2023-08-29 19:46:35,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:35,537 INFO L130 PetriNetUnfolder]: 865/1443 cut-off events.
[2023-08-29 19:46:35,537 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2023-08-29 19:46:35,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2701 conditions, 1443 events. 865/1443 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7140 event pairs, 456 based on Foata normal form. 0/1018 useless extension candidates. Maximal degree in co-relation 2697. Up to 1238 conditions per place.
[2023-08-29 19:46:35,542 INFO L137 encePairwiseOnDemand]: 234/237 looper letters, 40 selfloop transitions, 2 changer transitions 0/60 dead transitions.
[2023-08-29 19:46:35,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 60 transitions, 212 flow
[2023-08-29 19:46:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 19:46:35,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 19:46:35,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions.
[2023-08-29 19:46:35,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5541490857946554
[2023-08-29 19:46:35,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions.
[2023-08-29 19:46:35,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions.
[2023-08-29 19:46:35,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:35,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions.
[2023-08-29 19:46:35,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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)
[2023-08-29 19:46:35,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,546 INFO L175 Difference]: Start difference. First operand has 55 places, 61 transitions, 130 flow. Second operand 3 states and 394 transitions.
[2023-08-29 19:46:35,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 60 transitions, 212 flow
[2023-08-29 19:46:35,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-08-29 19:46:35,548 INFO L231 Difference]: Finished difference. Result has 54 places, 60 transitions, 128 flow
[2023-08-29 19:46:35,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=54, PETRI_TRANSITIONS=60}
[2023-08-29 19:46:35,549 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, -9 predicate places.
[2023-08-29 19:46:35,550 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 60 transitions, 128 flow
[2023-08-29 19:46:35,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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)
[2023-08-29 19:46:35,550 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:35,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-29 19:46:35,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-08-29 19:46:35,550 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:35,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:35,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1499444968, now seen corresponding path program 1 times
[2023-08-29 19:46:35,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:35,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906709787]
[2023-08-29 19:46:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:35,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:35,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:35,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:35,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906709787]
[2023-08-29 19:46:35,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906709787] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:35,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:35,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-29 19:46:35,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316001659]
[2023-08-29 19:46:35,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:35,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 19:46:35,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:35,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 19:46:35,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 19:46:35,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 237
[2023-08-29 19:46:35,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 60 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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)
[2023-08-29 19:46:35,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:35,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 237
[2023-08-29 19:46:35,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:35,675 INFO L130 PetriNetUnfolder]: 909/1559 cut-off events.
[2023-08-29 19:46:35,676 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-08-29 19:46:35,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2907 conditions, 1559 events. 909/1559 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7988 event pairs, 336 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 2903. Up to 969 conditions per place.
[2023-08-29 19:46:35,681 INFO L137 encePairwiseOnDemand]: 230/237 looper letters, 61 selfloop transitions, 5 changer transitions 0/83 dead transitions.
[2023-08-29 19:46:35,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 83 transitions, 310 flow
[2023-08-29 19:46:35,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 19:46:35,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 19:46:35,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions.
[2023-08-29 19:46:35,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6019690576652602
[2023-08-29 19:46:35,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions.
[2023-08-29 19:46:35,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions.
[2023-08-29 19:46:35,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:35,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions.
[2023-08-29 19:46:35,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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)
[2023-08-29 19:46:35,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,685 INFO L175 Difference]: Start difference. First operand has 54 places, 60 transitions, 128 flow. Second operand 3 states and 428 transitions.
[2023-08-29 19:46:35,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 83 transitions, 310 flow
[2023-08-29 19:46:35,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 83 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-08-29 19:46:35,687 INFO L231 Difference]: Finished difference. Result has 56 places, 62 transitions, 156 flow
[2023-08-29 19:46:35,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=56, PETRI_TRANSITIONS=62}
[2023-08-29 19:46:35,687 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, -7 predicate places.
[2023-08-29 19:46:35,687 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 62 transitions, 156 flow
[2023-08-29 19:46:35,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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)
[2023-08-29 19:46:35,688 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:35,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-29 19:46:35,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-08-29 19:46:35,688 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:35,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:35,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1548292065, now seen corresponding path program 1 times
[2023-08-29 19:46:35,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:35,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814229696]
[2023-08-29 19:46:35,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:35,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:35,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:35,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:35,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814229696]
[2023-08-29 19:46:35,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814229696] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:35,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:35,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-29 19:46:35,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271724101]
[2023-08-29 19:46:35,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:35,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 19:46:35,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:35,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 19:46:35,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 19:46:35,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 237
[2023-08-29 19:46:35,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 62 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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)
[2023-08-29 19:46:35,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:35,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 237
[2023-08-29 19:46:35,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:35,810 INFO L130 PetriNetUnfolder]: 805/1403 cut-off events.
[2023-08-29 19:46:35,811 INFO L131 PetriNetUnfolder]: For 191/191 co-relation queries the response was YES.
[2023-08-29 19:46:35,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2797 conditions, 1403 events. 805/1403 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7045 event pairs, 345 based on Foata normal form. 34/1132 useless extension candidates. Maximal degree in co-relation 2792. Up to 983 conditions per place.
[2023-08-29 19:46:35,815 INFO L137 encePairwiseOnDemand]: 230/237 looper letters, 59 selfloop transitions, 4 changer transitions 1/81 dead transitions.
[2023-08-29 19:46:35,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 81 transitions, 324 flow
[2023-08-29 19:46:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 19:46:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 19:46:35,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions.
[2023-08-29 19:46:35,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.60056258790436
[2023-08-29 19:46:35,817 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions.
[2023-08-29 19:46:35,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions.
[2023-08-29 19:46:35,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:35,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions.
[2023-08-29 19:46:35,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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)
[2023-08-29 19:46:35,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,819 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:35,820 INFO L175 Difference]: Start difference. First operand has 56 places, 62 transitions, 156 flow. Second operand 3 states and 427 transitions.
[2023-08-29 19:46:35,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 81 transitions, 324 flow
[2023-08-29 19:46:35,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 81 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-08-29 19:46:35,822 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 160 flow
[2023-08-29 19:46:35,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=57, PETRI_TRANSITIONS=61}
[2023-08-29 19:46:35,823 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, -6 predicate places.
[2023-08-29 19:46:35,823 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 160 flow
[2023-08-29 19:46:35,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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)
[2023-08-29 19:46:35,823 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:35,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-29 19:46:35,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-08-29 19:46:35,823 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:35,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:35,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1944565218, now seen corresponding path program 1 times
[2023-08-29 19:46:35,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:35,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644209124]
[2023-08-29 19:46:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:35,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:35,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:35,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644209124]
[2023-08-29 19:46:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644209124] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:35,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:35,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-29 19:46:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794351360]
[2023-08-29 19:46:35,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:35,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 19:46:35,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 19:46:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 19:46:35,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 237
[2023-08-29 19:46:35,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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)
[2023-08-29 19:46:35,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:35,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 237
[2023-08-29 19:46:35,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:36,006 INFO L130 PetriNetUnfolder]: 1602/2711 cut-off events.
[2023-08-29 19:46:36,006 INFO L131 PetriNetUnfolder]: For 635/635 co-relation queries the response was YES.
[2023-08-29 19:46:36,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5532 conditions, 2711 events. 1602/2711 cut-off events. For 635/635 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 14819 event pairs, 419 based on Foata normal form. 0/2212 useless extension candidates. Maximal degree in co-relation 5526. Up to 1377 conditions per place.
[2023-08-29 19:46:36,015 INFO L137 encePairwiseOnDemand]: 232/237 looper letters, 81 selfloop transitions, 4 changer transitions 0/99 dead transitions.
[2023-08-29 19:46:36,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 99 transitions, 437 flow
[2023-08-29 19:46:36,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 19:46:36,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 19:46:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions.
[2023-08-29 19:46:36,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6216596343178622
[2023-08-29 19:46:36,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions.
[2023-08-29 19:46:36,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions.
[2023-08-29 19:46:36,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:36,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions.
[2023-08-29 19:46:36,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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)
[2023-08-29 19:46:36,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:36,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:36,019 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 160 flow. Second operand 3 states and 442 transitions.
[2023-08-29 19:46:36,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 99 transitions, 437 flow
[2023-08-29 19:46:36,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 99 transitions, 429 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-29 19:46:36,023 INFO L231 Difference]: Finished difference. Result has 59 places, 65 transitions, 190 flow
[2023-08-29 19:46:36,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=59, PETRI_TRANSITIONS=65}
[2023-08-29 19:46:36,023 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, -4 predicate places.
[2023-08-29 19:46:36,023 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 65 transitions, 190 flow
[2023-08-29 19:46:36,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 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)
[2023-08-29 19:46:36,024 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:36,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-29 19:46:36,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-08-29 19:46:36,024 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:36,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:36,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1661685334, now seen corresponding path program 2 times
[2023-08-29 19:46:36,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:36,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300962993]
[2023-08-29 19:46:36,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:36,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:36,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:36,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300962993]
[2023-08-29 19:46:36,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300962993] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:36,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:36,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-29 19:46:36,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404256706]
[2023-08-29 19:46:36,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:36,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-29 19:46:36,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:36,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-29 19:46:36,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-08-29 19:46:36,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 237
[2023-08-29 19:46:36,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 65 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-29 19:46:36,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:36,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 237
[2023-08-29 19:46:36,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:36,308 INFO L130 PetriNetUnfolder]: 2112/3546 cut-off events.
[2023-08-29 19:46:36,308 INFO L131 PetriNetUnfolder]: For 982/982 co-relation queries the response was YES.
[2023-08-29 19:46:36,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7619 conditions, 3546 events. 2112/3546 cut-off events. For 982/982 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 20175 event pairs, 580 based on Foata normal form. 90/3130 useless extension candidates. Maximal degree in co-relation 7612. Up to 1880 conditions per place.
[2023-08-29 19:46:36,319 INFO L137 encePairwiseOnDemand]: 223/237 looper letters, 95 selfloop transitions, 16 changer transitions 7/130 dead transitions.
[2023-08-29 19:46:36,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 130 transitions, 601 flow
[2023-08-29 19:46:36,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-29 19:46:36,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-29 19:46:36,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 670 transitions.
[2023-08-29 19:46:36,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5654008438818565
[2023-08-29 19:46:36,321 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 670 transitions.
[2023-08-29 19:46:36,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 670 transitions.
[2023-08-29 19:46:36,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:36,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 670 transitions.
[2023-08-29 19:46:36,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 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)
[2023-08-29 19:46:36,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:36,324 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:36,324 INFO L175 Difference]: Start difference. First operand has 59 places, 65 transitions, 190 flow. Second operand 5 states and 670 transitions.
[2023-08-29 19:46:36,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 130 transitions, 601 flow
[2023-08-29 19:46:36,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 130 transitions, 591 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-08-29 19:46:36,350 INFO L231 Difference]: Finished difference. Result has 64 places, 79 transitions, 321 flow
[2023-08-29 19:46:36,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=321, PETRI_PLACES=64, PETRI_TRANSITIONS=79}
[2023-08-29 19:46:36,351 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 1 predicate places.
[2023-08-29 19:46:36,351 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 79 transitions, 321 flow
[2023-08-29 19:46:36,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-29 19:46:36,351 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:36,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-29 19:46:36,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-08-29 19:46:36,352 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:36,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:36,352 INFO L85 PathProgramCache]: Analyzing trace with hash -585149906, now seen corresponding path program 3 times
[2023-08-29 19:46:36,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:36,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303480044]
[2023-08-29 19:46:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:36,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:36,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:36,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:36,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303480044]
[2023-08-29 19:46:36,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303480044] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:36,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:36,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-29 19:46:36,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059725742]
[2023-08-29 19:46:36,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:36,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-29 19:46:36,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:36,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-29 19:46:36,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-08-29 19:46:36,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 237
[2023-08-29 19:46:36,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 79 transitions, 321 flow. Second operand has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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)
[2023-08-29 19:46:36,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:36,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 237
[2023-08-29 19:46:36,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:36,786 INFO L130 PetriNetUnfolder]: 4256/7269 cut-off events.
[2023-08-29 19:46:36,786 INFO L131 PetriNetUnfolder]: For 4117/4469 co-relation queries the response was YES.
[2023-08-29 19:46:36,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17935 conditions, 7269 events. 4256/7269 cut-off events. For 4117/4469 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 47278 event pairs, 1032 based on Foata normal form. 266/6731 useless extension candidates. Maximal degree in co-relation 17925. Up to 2770 conditions per place.
[2023-08-29 19:46:36,809 INFO L137 encePairwiseOnDemand]: 231/237 looper letters, 147 selfloop transitions, 8 changer transitions 5/183 dead transitions.
[2023-08-29 19:46:36,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 183 transitions, 1044 flow
[2023-08-29 19:46:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-29 19:46:36,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-29 19:46:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 733 transitions.
[2023-08-29 19:46:36,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6185654008438819
[2023-08-29 19:46:36,811 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 733 transitions.
[2023-08-29 19:46:36,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 733 transitions.
[2023-08-29 19:46:36,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:36,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 733 transitions.
[2023-08-29 19:46:36,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 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)
[2023-08-29 19:46:36,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:36,814 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:36,815 INFO L175 Difference]: Start difference. First operand has 64 places, 79 transitions, 321 flow. Second operand 5 states and 733 transitions.
[2023-08-29 19:46:36,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 183 transitions, 1044 flow
[2023-08-29 19:46:36,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 183 transitions, 1038 flow, removed 3 selfloop flow, removed 0 redundant places.
[2023-08-29 19:46:36,822 INFO L231 Difference]: Finished difference. Result has 72 places, 87 transitions, 385 flow
[2023-08-29 19:46:36,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=385, PETRI_PLACES=72, PETRI_TRANSITIONS=87}
[2023-08-29 19:46:36,823 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places.
[2023-08-29 19:46:36,823 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 87 transitions, 385 flow
[2023-08-29 19:46:36,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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)
[2023-08-29 19:46:36,823 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:36,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-29 19:46:36,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-08-29 19:46:36,824 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:36,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:36,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1141797074, now seen corresponding path program 4 times
[2023-08-29 19:46:36,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:36,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435703602]
[2023-08-29 19:46:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:36,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:36,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:36,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:36,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435703602]
[2023-08-29 19:46:36,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435703602] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:36,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:36,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-29 19:46:36,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478856641]
[2023-08-29 19:46:36,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:36,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-29 19:46:36,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:36,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-29 19:46:36,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-08-29 19:46:36,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 237
[2023-08-29 19:46:36,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 87 transitions, 385 flow. Second operand has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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)
[2023-08-29 19:46:36,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:36,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 237
[2023-08-29 19:46:36,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:37,380 INFO L130 PetriNetUnfolder]: 3733/6920 cut-off events.
[2023-08-29 19:46:37,380 INFO L131 PetriNetUnfolder]: For 5207/5659 co-relation queries the response was YES.
[2023-08-29 19:46:37,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17887 conditions, 6920 events. 3733/6920 cut-off events. For 5207/5659 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 47747 event pairs, 750 based on Foata normal form. 432/6826 useless extension candidates. Maximal degree in co-relation 17873. Up to 1889 conditions per place.
[2023-08-29 19:46:37,400 INFO L137 encePairwiseOnDemand]: 231/237 looper letters, 140 selfloop transitions, 12 changer transitions 3/180 dead transitions.
[2023-08-29 19:46:37,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 180 transitions, 1082 flow
[2023-08-29 19:46:37,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-29 19:46:37,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-29 19:46:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 727 transitions.
[2023-08-29 19:46:37,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6135021097046414
[2023-08-29 19:46:37,402 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 727 transitions.
[2023-08-29 19:46:37,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 727 transitions.
[2023-08-29 19:46:37,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:37,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 727 transitions.
[2023-08-29 19:46:37,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 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)
[2023-08-29 19:46:37,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:37,405 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:37,405 INFO L175 Difference]: Start difference. First operand has 72 places, 87 transitions, 385 flow. Second operand 5 states and 727 transitions.
[2023-08-29 19:46:37,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 180 transitions, 1082 flow
[2023-08-29 19:46:37,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 180 transitions, 1082 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-29 19:46:37,413 INFO L231 Difference]: Finished difference. Result has 79 places, 95 transitions, 482 flow
[2023-08-29 19:46:37,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=482, PETRI_PLACES=79, PETRI_TRANSITIONS=95}
[2023-08-29 19:46:37,413 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 16 predicate places.
[2023-08-29 19:46:37,414 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 95 transitions, 482 flow
[2023-08-29 19:46:37,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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)
[2023-08-29 19:46:37,414 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:37,414 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]
[2023-08-29 19:46:37,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-08-29 19:46:37,414 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:37,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:37,415 INFO L85 PathProgramCache]: Analyzing trace with hash 419746605, now seen corresponding path program 1 times
[2023-08-29 19:46:37,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:37,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364039985]
[2023-08-29 19:46:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:37,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:37,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:37,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364039985]
[2023-08-29 19:46:37,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364039985] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:37,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:37,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-29 19:46:37,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980491530]
[2023-08-29 19:46:37,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:37,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-29 19:46:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:37,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-29 19:46:37,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-08-29 19:46:37,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 237
[2023-08-29 19:46:37,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 95 transitions, 482 flow. Second operand has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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)
[2023-08-29 19:46:37,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:37,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 237
[2023-08-29 19:46:37,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:37,805 INFO L130 PetriNetUnfolder]: 2804/5172 cut-off events.
[2023-08-29 19:46:37,805 INFO L131 PetriNetUnfolder]: For 4646/5003 co-relation queries the response was YES.
[2023-08-29 19:46:37,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13523 conditions, 5172 events. 2804/5172 cut-off events. For 4646/5003 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 33131 event pairs, 969 based on Foata normal form. 238/4960 useless extension candidates. Maximal degree in co-relation 13506. Up to 2563 conditions per place.
[2023-08-29 19:46:37,822 INFO L137 encePairwiseOnDemand]: 230/237 looper letters, 81 selfloop transitions, 10 changer transitions 2/130 dead transitions.
[2023-08-29 19:46:37,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 130 transitions, 807 flow
[2023-08-29 19:46:37,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-29 19:46:37,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-29 19:46:37,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 664 transitions.
[2023-08-29 19:46:37,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.560337552742616
[2023-08-29 19:46:37,824 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 664 transitions.
[2023-08-29 19:46:37,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 664 transitions.
[2023-08-29 19:46:37,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:37,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 664 transitions.
[2023-08-29 19:46:37,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 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)
[2023-08-29 19:46:37,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:37,827 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:37,827 INFO L175 Difference]: Start difference. First operand has 79 places, 95 transitions, 482 flow. Second operand 5 states and 664 transitions.
[2023-08-29 19:46:37,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 130 transitions, 807 flow
[2023-08-29 19:46:37,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 130 transitions, 785 flow, removed 11 selfloop flow, removed 0 redundant places.
[2023-08-29 19:46:37,834 INFO L231 Difference]: Finished difference. Result has 86 places, 97 transitions, 503 flow
[2023-08-29 19:46:37,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=503, PETRI_PLACES=86, PETRI_TRANSITIONS=97}
[2023-08-29 19:46:37,836 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 23 predicate places.
[2023-08-29 19:46:37,836 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 97 transitions, 503 flow
[2023-08-29 19:46:37,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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)
[2023-08-29 19:46:37,836 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:37,836 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]
[2023-08-29 19:46:37,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-08-29 19:46:37,837 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:37,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:37,837 INFO L85 PathProgramCache]: Analyzing trace with hash 543404360, now seen corresponding path program 1 times
[2023-08-29 19:46:37,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:37,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448090636]
[2023-08-29 19:46:37,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:37,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:37,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:37,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:37,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448090636]
[2023-08-29 19:46:37,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448090636] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:37,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:37,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-08-29 19:46:37,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355114577]
[2023-08-29 19:46:37,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:37,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-29 19:46:37,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:37,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-29 19:46:37,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-08-29 19:46:37,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 237
[2023-08-29 19:46:37,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 97 transitions, 503 flow. Second operand has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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)
[2023-08-29 19:46:37,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:37,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 237
[2023-08-29 19:46:37,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:38,124 INFO L130 PetriNetUnfolder]: 1663/3282 cut-off events.
[2023-08-29 19:46:38,124 INFO L131 PetriNetUnfolder]: For 3650/3900 co-relation queries the response was YES.
[2023-08-29 19:46:38,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9132 conditions, 3282 events. 1663/3282 cut-off events. For 3650/3900 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 21253 event pairs, 582 based on Foata normal form. 148/3171 useless extension candidates. Maximal degree in co-relation 9111. Up to 1666 conditions per place.
[2023-08-29 19:46:38,135 INFO L137 encePairwiseOnDemand]: 230/237 looper letters, 79 selfloop transitions, 9 changer transitions 0/126 dead transitions.
[2023-08-29 19:46:38,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 126 transitions, 764 flow
[2023-08-29 19:46:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-08-29 19:46:38,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-29 19:46:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 662 transitions.
[2023-08-29 19:46:38,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5586497890295359
[2023-08-29 19:46:38,137 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 662 transitions.
[2023-08-29 19:46:38,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 662 transitions.
[2023-08-29 19:46:38,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:38,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 662 transitions.
[2023-08-29 19:46:38,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 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)
[2023-08-29 19:46:38,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:38,140 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 237.0) internal successors, (1422), 6 states have internal predecessors, (1422), 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)
[2023-08-29 19:46:38,140 INFO L175 Difference]: Start difference. First operand has 86 places, 97 transitions, 503 flow. Second operand 5 states and 662 transitions.
[2023-08-29 19:46:38,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 126 transitions, 764 flow
[2023-08-29 19:46:38,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 126 transitions, 748 flow, removed 8 selfloop flow, removed 0 redundant places.
[2023-08-29 19:46:38,148 INFO L231 Difference]: Finished difference. Result has 91 places, 98 transitions, 512 flow
[2023-08-29 19:46:38,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=512, PETRI_PLACES=91, PETRI_TRANSITIONS=98}
[2023-08-29 19:46:38,148 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 28 predicate places.
[2023-08-29 19:46:38,148 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 98 transitions, 512 flow
[2023-08-29 19:46:38,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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)
[2023-08-29 19:46:38,149 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 19:46:38,149 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-29 19:46:38,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-08-29 19:46:38,149 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] ===
[2023-08-29 19:46:38,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 19:46:38,149 INFO L85 PathProgramCache]: Analyzing trace with hash -157352223, now seen corresponding path program 1 times
[2023-08-29 19:46:38,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 19:46:38,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211310936]
[2023-08-29 19:46:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 19:46:38,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 19:46:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 19:46:38,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 19:46:38,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 19:46:38,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211310936]
[2023-08-29 19:46:38,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211310936] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 19:46:38,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 19:46:38,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-29 19:46:38,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240246989]
[2023-08-29 19:46:38,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 19:46:38,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 19:46:38,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 19:46:38,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 19:46:38,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 19:46:38,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 237
[2023-08-29 19:46:38,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 98 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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)
[2023-08-29 19:46:38,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 19:46:38,297 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 237
[2023-08-29 19:46:38,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 19:46:38,508 INFO L130 PetriNetUnfolder]: 1575/3163 cut-off events.
[2023-08-29 19:46:38,508 INFO L131 PetriNetUnfolder]: For 3966/4195 co-relation queries the response was YES.
[2023-08-29 19:46:38,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9309 conditions, 3163 events. 1575/3163 cut-off events. For 3966/4195 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 20684 event pairs, 883 based on Foata normal form. 134/3003 useless extension candidates. Maximal degree in co-relation 9284. Up to 2366 conditions per place.
[2023-08-29 19:46:38,516 INFO L137 encePairwiseOnDemand]: 235/237 looper letters, 0 selfloop transitions, 0 changer transitions 97/97 dead transitions.
[2023-08-29 19:46:38,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 97 transitions, 622 flow
[2023-08-29 19:46:38,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 19:46:38,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 19:46:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions.
[2023-08-29 19:46:38,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5583684950773559
[2023-08-29 19:46:38,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions.
[2023-08-29 19:46:38,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions.
[2023-08-29 19:46:38,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 19:46:38,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions.
[2023-08-29 19:46:38,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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)
[2023-08-29 19:46:38,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:38,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 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)
[2023-08-29 19:46:38,520 INFO L175 Difference]: Start difference. First operand has 91 places, 98 transitions, 512 flow. Second operand 3 states and 397 transitions.
[2023-08-29 19:46:38,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 97 transitions, 622 flow
[2023-08-29 19:46:38,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 97 transitions, 611 flow, removed 1 selfloop flow, removed 2 redundant places.
[2023-08-29 19:46:38,529 INFO L231 Difference]: Finished difference. Result has 90 places, 0 transitions, 0 flow
[2023-08-29 19:46:38,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=90, PETRI_TRANSITIONS=0}
[2023-08-29 19:46:38,530 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 27 predicate places.
[2023-08-29 19:46:38,530 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 0 transitions, 0 flow
[2023-08-29 19:46:38,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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)
[2023-08-29 19:46:38,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 15 remaining)
[2023-08-29 19:46:38,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining)
[2023-08-29 19:46:38,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining)
[2023-08-29 19:46:38,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining)
[2023-08-29 19:46:38,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining)
[2023-08-29 19:46:38,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining)
[2023-08-29 19:46:38,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining)
[2023-08-29 19:46:38,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining)
[2023-08-29 19:46:38,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining)
[2023-08-29 19:46:38,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining)
[2023-08-29 19:46:38,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (4 of 15 remaining)
[2023-08-29 19:46:38,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining)
[2023-08-29 19:46:38,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining)
[2023-08-29 19:46:38,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 15 remaining)
[2023-08-29 19:46:38,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining)
[2023-08-29 19:46:38,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-08-29 19:46:38,534 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-29 19:46:38,537 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-08-29 19:46:38,537 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-08-29 19:46:38,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:46:38 BasicIcfg
[2023-08-29 19:46:38,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-08-29 19:46:38,540 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-08-29 19:46:38,540 INFO L271 PluginConnector]: Initializing Witness Printer...
[2023-08-29 19:46:38,540 INFO L275 PluginConnector]: Witness Printer initialized
[2023-08-29 19:46:38,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:46:32" (3/4) ...
[2023-08-29 19:46:38,542 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-08-29 19:46:38,545 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2
[2023-08-29 19:46:38,546 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1
[2023-08-29 19:46:38,548 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges
[2023-08-29 19:46:38,548 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-08-29 19:46:38,548 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-08-29 19:46:38,548 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-08-29 19:46:38,566 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2023-08-29 19:46:38,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-08-29 19:46:38,566 INFO L158 Benchmark]: Toolchain (without parser) took 7357.27ms. Allocated memory was 69.2MB in the beginning and 987.8MB in the end (delta: 918.6MB). Free memory was 44.4MB in the beginning and 785.7MB in the end (delta: -741.3MB). Peak memory consumption was 180.4MB. Max. memory is 16.1GB.
[2023-08-29 19:46:38,566 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 69.2MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-08-29 19:46:38,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.69ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.2MB in the beginning and 57.4MB in the end (delta: -13.2MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB.
[2023-08-29 19:46:38,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.68ms. Allocated memory is still 86.0MB. Free memory was 57.4MB in the beginning and 55.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-08-29 19:46:38,567 INFO L158 Benchmark]: Boogie Preprocessor took 31.76ms. Allocated memory is still 86.0MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-08-29 19:46:38,567 INFO L158 Benchmark]: RCFGBuilder took 380.82ms. Allocated memory is still 86.0MB. Free memory was 53.5MB in the beginning and 37.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2023-08-29 19:46:38,568 INFO L158 Benchmark]: TraceAbstraction took 6484.60ms. Allocated memory was 86.0MB in the beginning and 987.8MB in the end (delta: 901.8MB). Free memory was 36.8MB in the beginning and 788.8MB in the end (delta: -752.1MB). Peak memory consumption was 298.1MB. Max. memory is 16.1GB.
[2023-08-29 19:46:38,568 INFO L158 Benchmark]: Witness Printer took 26.04ms. Allocated memory is still 987.8MB. Free memory was 788.8MB in the beginning and 785.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-08-29 19:46:38,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.15ms. Allocated memory is still 69.2MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 385.69ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.2MB in the beginning and 57.4MB in the end (delta: -13.2MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 43.68ms. Allocated memory is still 86.0MB. Free memory was 57.4MB in the beginning and 55.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 31.76ms. Allocated memory is still 86.0MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 380.82ms. Allocated memory is still 86.0MB. Free memory was 53.5MB in the beginning and 37.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 6484.60ms. Allocated memory was 86.0MB in the beginning and 987.8MB in the end (delta: 901.8MB). Free memory was 36.8MB in the beginning and 788.8MB in the end (delta: -752.1MB). Peak memory consumption was 298.1MB. Max. memory is 16.1GB.
* Witness Printer took 26.04ms. Allocated memory is still 987.8MB. Free memory was 788.8MB in the beginning and 785.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 1.8s, 118 PlacesBefore, 63 PlacesAfterwards, 135 TransitionsBefore, 73 TransitionsAfterwards, 5676 CoEnabledTransitionPairs, 5 FixpointIterations, 35 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 7 ChoiceCompositions, 96 TotalNumberOfCompositions, 16119 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6851, independent: 6516, independent conditional: 0, independent unconditional: 6516, dependent: 335, dependent conditional: 0, dependent unconditional: 335, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2612, independent: 2567, independent conditional: 0, independent unconditional: 2567, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6851, independent: 3949, independent conditional: 0, independent unconditional: 3949, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 2612, unknown conditional: 0, unknown unconditional: 2612] , Statistics on independence cache: Total cache size (in pairs): 491, Positive cache size: 456, Positive conditional cache size: 0, Positive unconditional cache size: 456, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
- PositiveResult [Line: 834]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- PositiveResult [Line: 764]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 843]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 5 procedures, 184 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.4s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1022 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 741 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1879 IncrementalHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 68 mSDtfsCounter, 1879 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=512occurred in iteration=13, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
11 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-08-29 19:46:38,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE