./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/goblint-regression/06-symbeq_11-equ_nr.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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE
--- Real Ultimate output ---
This is Ultimate 0.2.3-?-b8dbc81
[2023-09-01 00:08:10,971 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2023-09-01 00:08:10,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2023-09-01 00:08:10,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-09-01 00:08:10,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-09-01 00:08:11,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-09-01 00:08:11,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-09-01 00:08:11,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2023-09-01 00:08:11,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-09-01 00:08:11,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-09-01 00:08:11,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2023-09-01 00:08:11,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-09-01 00:08:11,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-09-01 00:08:11,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-09-01 00:08:11,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-09-01 00:08:11,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-09-01 00:08:11,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-09-01 00:08:11,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-09-01 00:08:11,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-09-01 00:08:11,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2023-09-01 00:08:11,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-09-01 00:08:11,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-09-01 00:08:11,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2023-09-01 00:08:11,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-09-01 00:08:11,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-09-01 00:08:11,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-09-01 00:08:11,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-09-01 00:08:11,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-09-01 00:08:11,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-09-01 00:08:11,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-09-01 00:08:11,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-09-01 00:08:11,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-09-01 00:08:11,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-09-01 00:08:11,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2023-09-01 00:08:11,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-09-01 00:08:11,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2023-09-01 00:08:11,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-09-01 00:08:11,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-09-01 00:08:11,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2023-09-01 00:08:11,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2023-09-01 00:08:11,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2023-09-01 00:08:11,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-09-01 00:08:11,054 INFO L113 SettingsManager]: Loading preferences was successful
[2023-09-01 00:08:11,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2023-09-01 00:08:11,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-09-01 00:08:11,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-09-01 00:08:11,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-09-01 00:08:11,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-09-01 00:08:11,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-09-01 00:08:11,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2023-09-01 00:08:11,057 INFO L138 SettingsManager]: * Use SBE=true
[2023-09-01 00:08:11,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-09-01 00:08:11,057 INFO L138 SettingsManager]: * sizeof long=4
[2023-09-01 00:08:11,058 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2023-09-01 00:08:11,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2023-09-01 00:08:11,058 INFO L138 SettingsManager]: * sizeof POINTER=4
[2023-09-01 00:08:11,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2023-09-01 00:08:11,058 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-09-01 00:08:11,058 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2023-09-01 00:08:11,059 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-09-01 00:08:11,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-09-01 00:08:11,059 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-09-01 00:08:11,059 INFO L138 SettingsManager]: * sizeof long double=12
[2023-09-01 00:08:11,059 INFO L138 SettingsManager]: * Use constant arrays=true
[2023-09-01 00:08:11,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-09-01 00:08:11,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-09-01 00:08:11,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2023-09-01 00:08:11,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-09-01 00:08:11,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-09-01 00:08:11,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-09-01 00:08:11,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-09-01 00:08:11,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-09-01 00:08:11,061 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-09-01 00:08:11,061 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-09-01 00:08:11,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-09-01 00:08:11,062 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-09-01 00:08:11,062 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE
[2023-09-01 00:08:11,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-09-01 00:08:11,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-09-01 00:08:11,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-09-01 00:08:11,437 INFO L271 PluginConnector]: Initializing CDTParser...
[2023-09-01 00:08:11,437 INFO L275 PluginConnector]: CDTParser initialized
[2023-09-01 00:08:11,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i
[2023-09-01 00:08:12,562 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2023-09-01 00:08:12,818 INFO L351 CDTParser]: Found 1 translation units.
[2023-09-01 00:08:12,818 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i
[2023-09-01 00:08:12,833 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52080b9e4/173ed494511042c8bf12a0281d89e53a/FLAGa9d7f187b
[2023-09-01 00:08:12,851 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52080b9e4/173ed494511042c8bf12a0281d89e53a
[2023-09-01 00:08:12,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-09-01 00:08:12,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-09-01 00:08:12,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-09-01 00:08:12,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-09-01 00:08:12,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-09-01 00:08:12,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:08:12" (1/1) ...
[2023-09-01 00:08:12,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3464b782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:12, skipping insertion in model container
[2023-09-01 00:08:12,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:08:12" (1/1) ...
[2023-09-01 00:08:12,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2023-09-01 00:08:12,920 INFO L178 MainTranslator]: Built tables and reachable declarations
[2023-09-01 00:08:13,378 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-09-01 00:08:13,392 INFO L203 MainTranslator]: Completed pre-run
[2023-09-01 00:08:13,452 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-09-01 00:08:13,525 INFO L208 MainTranslator]: Completed translation
[2023-09-01 00:08:13,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13 WrapperNode
[2023-09-01 00:08:13,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-09-01 00:08:13,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-09-01 00:08:13,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-09-01 00:08:13,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2023-09-01 00:08:13,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,598 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65
[2023-09-01 00:08:13,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-09-01 00:08:13,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-09-01 00:08:13,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2023-09-01 00:08:13,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2023-09-01 00:08:13,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,638 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-09-01 00:08:13,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-09-01 00:08:13,654 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2023-09-01 00:08:13,654 INFO L275 PluginConnector]: RCFGBuilder initialized
[2023-09-01 00:08:13,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (1/1) ...
[2023-09-01 00:08:13,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-09-01 00:08:13,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-09-01 00:08:13,692 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)
[2023-09-01 00:08:13,713 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
[2023-09-01 00:08:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-09-01 00:08:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-09-01 00:08:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-09-01 00:08:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-09-01 00:08:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-09-01 00:08:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2023-09-01 00:08:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2023-09-01 00:08:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-09-01 00:08:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-09-01 00:08:13,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-09-01 00:08:13,725 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-09-01 00:08:13,900 INFO L236 CfgBuilder]: Building ICFG
[2023-09-01 00:08:13,902 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-09-01 00:08:14,109 INFO L277 CfgBuilder]: Performing block encoding
[2023-09-01 00:08:14,114 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-09-01 00:08:14,115 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-09-01 00:08:14,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:08:14 BoogieIcfgContainer
[2023-09-01 00:08:14,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-09-01 00:08:14,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-09-01 00:08:14,134 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2023-09-01 00:08:14,137 INFO L275 PluginConnector]: TraceAbstraction initialized
[2023-09-01 00:08:14,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:08:12" (1/3) ...
[2023-09-01 00:08:14,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0521f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:08:14, skipping insertion in model container
[2023-09-01 00:08:14,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:08:13" (2/3) ...
[2023-09-01 00:08:14,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0521f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:08:14, skipping insertion in model container
[2023-09-01 00:08:14,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:08:14" (3/3) ...
[2023-09-01 00:08:14,139 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i
[2023-09-01 00:08:14,154 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-09-01 00:08:14,154 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations.
[2023-09-01 00:08:14,154 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-09-01 00:08:14,222 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-09-01 00:08:14,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 83 transitions, 171 flow
[2023-09-01 00:08:14,319 INFO L130 PetriNetUnfolder]: 1/87 cut-off events.
[2023-09-01 00:08:14,322 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-09-01 00:08:14,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 1/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place.
[2023-09-01 00:08:14,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 83 transitions, 171 flow
[2023-09-01 00:08:14,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 82 transitions, 167 flow
[2023-09-01 00:08:14,334 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-09-01 00:08:14,351 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 82 transitions, 167 flow
[2023-09-01 00:08:14,355 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 82 transitions, 167 flow
[2023-09-01 00:08:14,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 82 transitions, 167 flow
[2023-09-01 00:08:14,377 INFO L130 PetriNetUnfolder]: 1/87 cut-off events.
[2023-09-01 00:08:14,378 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-09-01 00:08:14,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 1/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place.
[2023-09-01 00:08:14,381 INFO L119 LiptonReduction]: Number of co-enabled transitions 288
[2023-09-01 00:08:22,323 INFO L134 LiptonReduction]: Checked pairs total: 1013
[2023-09-01 00:08:22,324 INFO L136 LiptonReduction]: Total number of compositions: 85
[2023-09-01 00:08:22,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-09-01 00:08:22,342 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;@39dcb0aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-09-01 00:08:22,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2023-09-01 00:08:22,344 INFO L130 PetriNetUnfolder]: 0/1 cut-off events.
[2023-09-01 00:08:22,345 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-09-01 00:08:22,345 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-09-01 00:08:22,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1]
[2023-09-01 00:08:22,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] ===
[2023-09-01 00:08:22,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-09-01 00:08:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash 297, now seen corresponding path program 1 times
[2023-09-01 00:08:22,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-01 00:08:22,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852359361]
[2023-09-01 00:08:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-01 00:08:22,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-01 00:08:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-01 00:08:22,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-09-01 00:08:22,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-01 00:08:22,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852359361]
[2023-09-01 00:08:22,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852359361] provided 1 perfect and 0 imperfect interpolant sequences
[2023-09-01 00:08:22,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-09-01 00:08:22,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2023-09-01 00:08:22,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497195275]
[2023-09-01 00:08:22,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-01 00:08:22,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-09-01 00:08:22,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-01 00:08:22,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-09-01 00:08:22,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-09-01 00:08:22,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 168
[2023-09-01 00:08:22,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-09-01 00:08:22,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 168
[2023-09-01 00:08:22,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-09-01 00:08:22,560 INFO L130 PetriNetUnfolder]: 25/68 cut-off events.
[2023-09-01 00:08:22,560 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-09-01 00:08:22,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 68 events. 25/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 213 event pairs, 25 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 123. Up to 65 conditions per place.
[2023-09-01 00:08:22,563 INFO L137 encePairwiseOnDemand]: 166/168 looper letters, 13 selfloop transitions, 0 changer transitions 0/16 dead transitions.
[2023-09-01 00:08:22,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 16 transitions, 61 flow
[2023-09-01 00:08:22,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-09-01 00:08:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-09-01 00:08:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 179 transitions.
[2023-09-01 00:08:22,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5327380952380952
[2023-09-01 00:08:22,577 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 179 transitions.
[2023-09-01 00:08:22,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 179 transitions.
[2023-09-01 00:08:22,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-09-01 00:08:22,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 179 transitions.
[2023-09-01 00:08:22,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,593 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,595 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 2 states and 179 transitions.
[2023-09-01 00:08:22,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 16 transitions, 61 flow
[2023-09-01 00:08:22,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 16 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-09-01 00:08:22,598 INFO L231 Difference]: Finished difference. Result has 19 places, 16 transitions, 34 flow
[2023-09-01 00:08:22,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=34, PETRI_PLACES=19, PETRI_TRANSITIONS=16}
[2023-09-01 00:08:22,604 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, -2 predicate places.
[2023-09-01 00:08:22,604 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 16 transitions, 34 flow
[2023-09-01 00:08:22,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,605 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-09-01 00:08:22,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-09-01 00:08:22,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-09-01 00:08:22,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] ===
[2023-09-01 00:08:22,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-09-01 00:08:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash 9208, now seen corresponding path program 1 times
[2023-09-01 00:08:22,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-01 00:08:22,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363294347]
[2023-09-01 00:08:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-01 00:08:22,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-01 00:08:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-01 00:08:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-09-01 00:08:22,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-01 00:08:22,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363294347]
[2023-09-01 00:08:22,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363294347] provided 1 perfect and 0 imperfect interpolant sequences
[2023-09-01 00:08:22,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-09-01 00:08:22,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-09-01 00:08:22,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086725359]
[2023-09-01 00:08:22,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-01 00:08:22,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-09-01 00:08:22,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-01 00:08:22,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-09-01 00:08:22,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-09-01 00:08:22,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 168
[2023-09-01 00:08:22,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 16 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-09-01 00:08:22,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 168
[2023-09-01 00:08:22,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-09-01 00:08:22,749 INFO L130 PetriNetUnfolder]: 30/77 cut-off events.
[2023-09-01 00:08:22,749 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-09-01 00:08:22,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 77 events. 30/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 251 event pairs, 25 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 154. Up to 63 conditions per place.
[2023-09-01 00:08:22,750 INFO L137 encePairwiseOnDemand]: 165/168 looper letters, 15 selfloop transitions, 1 changer transitions 4/22 dead transitions.
[2023-09-01 00:08:22,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 22 transitions, 86 flow
[2023-09-01 00:08:22,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-09-01 00:08:22,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-09-01 00:08:22,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions.
[2023-09-01 00:08:22,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49404761904761907
[2023-09-01 00:08:22,753 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions.
[2023-09-01 00:08:22,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions.
[2023-09-01 00:08:22,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-09-01 00:08:22,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions.
[2023-09-01 00:08:22,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,756 INFO L175 Difference]: Start difference. First operand has 19 places, 16 transitions, 34 flow. Second operand 3 states and 249 transitions.
[2023-09-01 00:08:22,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 22 transitions, 86 flow
[2023-09-01 00:08:22,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 22 transitions, 86 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-09-01 00:08:22,757 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 37 flow
[2023-09-01 00:08:22,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=22, PETRI_TRANSITIONS=15}
[2023-09-01 00:08:22,758 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places.
[2023-09-01 00:08:22,759 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 37 flow
[2023-09-01 00:08:22,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:22,759 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-09-01 00:08:22,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-09-01 00:08:22,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-09-01 00:08:22,760 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] ===
[2023-09-01 00:08:22,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-09-01 00:08:22,760 INFO L85 PathProgramCache]: Analyzing trace with hash 293253, now seen corresponding path program 1 times
[2023-09-01 00:08:22,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-01 00:08:22,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137144586]
[2023-09-01 00:08:22,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-01 00:08:22,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-01 00:08:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-01 00:08:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-09-01 00:08:23,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-01 00:08:23,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137144586]
[2023-09-01 00:08:23,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137144586] provided 1 perfect and 0 imperfect interpolant sequences
[2023-09-01 00:08:23,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-09-01 00:08:23,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-09-01 00:08:23,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286116]
[2023-09-01 00:08:23,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-01 00:08:23,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-09-01 00:08:23,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-01 00:08:23,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-09-01 00:08:23,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-09-01 00:08:23,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 168
[2023-09-01 00:08:23,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-09-01 00:08:23,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 168
[2023-09-01 00:08:23,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-09-01 00:08:23,305 INFO L130 PetriNetUnfolder]: 20/54 cut-off events.
[2023-09-01 00:08:23,305 INFO L131 PetriNetUnfolder]: For 19/22 co-relation queries the response was YES.
[2023-09-01 00:08:23,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 54 events. 20/54 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 158 event pairs, 20 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 114. Up to 51 conditions per place.
[2023-09-01 00:08:23,307 INFO L137 encePairwiseOnDemand]: 166/168 looper letters, 10 selfloop transitions, 1 changer transitions 0/14 dead transitions.
[2023-09-01 00:08:23,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 14 transitions, 57 flow
[2023-09-01 00:08:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-09-01 00:08:23,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-09-01 00:08:23,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions.
[2023-09-01 00:08:23,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48214285714285715
[2023-09-01 00:08:23,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions.
[2023-09-01 00:08:23,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions.
[2023-09-01 00:08:23,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-09-01 00:08:23,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions.
[2023-09-01 00:08:23,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,316 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 37 flow. Second operand 3 states and 243 transitions.
[2023-09-01 00:08:23,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 14 transitions, 57 flow
[2023-09-01 00:08:23,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 14 transitions, 53 flow, removed 1 selfloop flow, removed 2 redundant places.
[2023-09-01 00:08:23,318 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 33 flow
[2023-09-01 00:08:23,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=21, PETRI_TRANSITIONS=14}
[2023-09-01 00:08:23,319 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 0 predicate places.
[2023-09-01 00:08:23,322 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 33 flow
[2023-09-01 00:08:23,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,323 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-09-01 00:08:23,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-09-01 00:08:23,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-09-01 00:08:23,324 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] ===
[2023-09-01 00:08:23,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-09-01 00:08:23,324 INFO L85 PathProgramCache]: Analyzing trace with hash 293254, now seen corresponding path program 1 times
[2023-09-01 00:08:23,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-01 00:08:23,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659090574]
[2023-09-01 00:08:23,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-01 00:08:23,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-01 00:08:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-01 00:08:23,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-09-01 00:08:23,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-01 00:08:23,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659090574]
[2023-09-01 00:08:23,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659090574] provided 1 perfect and 0 imperfect interpolant sequences
[2023-09-01 00:08:23,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-09-01 00:08:23,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-09-01 00:08:23,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260534181]
[2023-09-01 00:08:23,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-01 00:08:23,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-09-01 00:08:23,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-01 00:08:23,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-09-01 00:08:23,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-09-01 00:08:23,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 168
[2023-09-01 00:08:23,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-09-01 00:08:23,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 168
[2023-09-01 00:08:23,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-09-01 00:08:23,582 INFO L130 PetriNetUnfolder]: 20/60 cut-off events.
[2023-09-01 00:08:23,583 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-09-01 00:08:23,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 60 events. 20/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 176 event pairs, 10 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 120. Up to 29 conditions per place.
[2023-09-01 00:08:23,584 INFO L137 encePairwiseOnDemand]: 165/168 looper letters, 14 selfloop transitions, 2 changer transitions 0/18 dead transitions.
[2023-09-01 00:08:23,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 73 flow
[2023-09-01 00:08:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-09-01 00:08:23,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-09-01 00:08:23,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions.
[2023-09-01 00:08:23,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111
[2023-09-01 00:08:23,585 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions.
[2023-09-01 00:08:23,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions.
[2023-09-01 00:08:23,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-09-01 00:08:23,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions.
[2023-09-01 00:08:23,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,589 INFO L175 Difference]: Start difference. First operand has 21 places, 14 transitions, 33 flow. Second operand 3 states and 245 transitions.
[2023-09-01 00:08:23,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 73 flow
[2023-09-01 00:08:23,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-09-01 00:08:23,590 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 34 flow
[2023-09-01 00:08:23,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=21, PETRI_TRANSITIONS=13}
[2023-09-01 00:08:23,590 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 0 predicate places.
[2023-09-01 00:08:23,591 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 34 flow
[2023-09-01 00:08:23,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,591 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-09-01 00:08:23,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-09-01 00:08:23,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-09-01 00:08:23,592 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] ===
[2023-09-01 00:08:23,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-09-01 00:08:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash 293240, now seen corresponding path program 1 times
[2023-09-01 00:08:23,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-01 00:08:23,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868321979]
[2023-09-01 00:08:23,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-01 00:08:23,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-01 00:08:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-01 00:08:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-09-01 00:08:23,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-01 00:08:23,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868321979]
[2023-09-01 00:08:23,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868321979] provided 1 perfect and 0 imperfect interpolant sequences
[2023-09-01 00:08:23,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-09-01 00:08:23,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-09-01 00:08:23,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039585045]
[2023-09-01 00:08:23,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-01 00:08:23,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-09-01 00:08:23,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-01 00:08:23,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-09-01 00:08:23,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-09-01 00:08:23,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 168
[2023-09-01 00:08:23,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-09-01 00:08:23,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 168
[2023-09-01 00:08:23,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-09-01 00:08:23,791 INFO L130 PetriNetUnfolder]: 12/36 cut-off events.
[2023-09-01 00:08:23,792 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES.
[2023-09-01 00:08:23,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 36 events. 12/36 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 12 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 83. Up to 33 conditions per place.
[2023-09-01 00:08:23,792 INFO L137 encePairwiseOnDemand]: 166/168 looper letters, 8 selfloop transitions, 1 changer transitions 0/12 dead transitions.
[2023-09-01 00:08:23,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 12 transitions, 50 flow
[2023-09-01 00:08:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-09-01 00:08:23,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-09-01 00:08:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions.
[2023-09-01 00:08:23,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49007936507936506
[2023-09-01 00:08:23,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions.
[2023-09-01 00:08:23,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions.
[2023-09-01 00:08:23,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-09-01 00:08:23,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions.
[2023-09-01 00:08:23,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,797 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 34 flow. Second operand 3 states and 247 transitions.
[2023-09-01 00:08:23,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 12 transitions, 50 flow
[2023-09-01 00:08:23,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 12 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-09-01 00:08:23,798 INFO L231 Difference]: Finished difference. Result has 20 places, 12 transitions, 30 flow
[2023-09-01 00:08:23,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=20, PETRI_TRANSITIONS=12}
[2023-09-01 00:08:23,799 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, -1 predicate places.
[2023-09-01 00:08:23,799 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 30 flow
[2023-09-01 00:08:23,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,799 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-09-01 00:08:23,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-09-01 00:08:23,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-09-01 00:08:23,800 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] ===
[2023-09-01 00:08:23,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-09-01 00:08:23,800 INFO L85 PathProgramCache]: Analyzing trace with hash 9089831, now seen corresponding path program 1 times
[2023-09-01 00:08:23,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-01 00:08:23,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610443178]
[2023-09-01 00:08:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-01 00:08:23,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-01 00:08:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-01 00:08:23,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-09-01 00:08:23,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-01 00:08:23,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610443178]
[2023-09-01 00:08:23,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610443178] provided 1 perfect and 0 imperfect interpolant sequences
[2023-09-01 00:08:23,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-09-01 00:08:23,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-09-01 00:08:23,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982385170]
[2023-09-01 00:08:23,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-01 00:08:23,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-09-01 00:08:23,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-01 00:08:23,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-09-01 00:08:23,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-09-01 00:08:23,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 168
[2023-09-01 00:08:23,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-09-01 00:08:23,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 168
[2023-09-01 00:08:23,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-09-01 00:08:23,957 INFO L130 PetriNetUnfolder]: 10/39 cut-off events.
[2023-09-01 00:08:23,958 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-09-01 00:08:23,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 39 events. 10/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 100 event pairs, 4 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 83. Up to 18 conditions per place.
[2023-09-01 00:08:23,961 INFO L137 encePairwiseOnDemand]: 164/168 looper letters, 9 selfloop transitions, 3 changer transitions 1/16 dead transitions.
[2023-09-01 00:08:23,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 16 transitions, 65 flow
[2023-09-01 00:08:23,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-09-01 00:08:23,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-09-01 00:08:23,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions.
[2023-09-01 00:08:23,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204
[2023-09-01 00:08:23,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions.
[2023-09-01 00:08:23,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions.
[2023-09-01 00:08:23,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-09-01 00:08:23,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions.
[2023-09-01 00:08:23,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,966 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,966 INFO L175 Difference]: Start difference. First operand has 20 places, 12 transitions, 30 flow. Second operand 3 states and 248 transitions.
[2023-09-01 00:08:23,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 16 transitions, 65 flow
[2023-09-01 00:08:23,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 16 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-09-01 00:08:23,967 INFO L231 Difference]: Finished difference. Result has 23 places, 13 transitions, 47 flow
[2023-09-01 00:08:23,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=23, PETRI_TRANSITIONS=13}
[2023-09-01 00:08:23,968 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places.
[2023-09-01 00:08:23,968 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 13 transitions, 47 flow
[2023-09-01 00:08:23,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:23,969 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-09-01 00:08:23,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-09-01 00:08:23,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-09-01 00:08:23,969 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] ===
[2023-09-01 00:08:23,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-09-01 00:08:23,970 INFO L85 PathProgramCache]: Analyzing trace with hash 249132179, now seen corresponding path program 1 times
[2023-09-01 00:08:23,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-01 00:08:23,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105644167]
[2023-09-01 00:08:23,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-01 00:08:23,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-01 00:08:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-01 00:08:24,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-09-01 00:08:24,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-01 00:08:24,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105644167]
[2023-09-01 00:08:24,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105644167] provided 1 perfect and 0 imperfect interpolant sequences
[2023-09-01 00:08:24,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-09-01 00:08:24,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-09-01 00:08:24,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105027334]
[2023-09-01 00:08:24,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-01 00:08:24,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-09-01 00:08:24,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-01 00:08:24,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-09-01 00:08:24,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-09-01 00:08:24,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 168
[2023-09-01 00:08:24,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 13 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-09-01 00:08:24,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 168
[2023-09-01 00:08:24,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-09-01 00:08:24,163 INFO L130 PetriNetUnfolder]: 10/35 cut-off events.
[2023-09-01 00:08:24,164 INFO L131 PetriNetUnfolder]: For 16/19 co-relation queries the response was YES.
[2023-09-01 00:08:24,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 35 events. 10/35 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 72 event pairs, 6 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 97. Up to 21 conditions per place.
[2023-09-01 00:08:24,164 INFO L137 encePairwiseOnDemand]: 165/168 looper letters, 6 selfloop transitions, 2 changer transitions 4/14 dead transitions.
[2023-09-01 00:08:24,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 14 transitions, 73 flow
[2023-09-01 00:08:24,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-09-01 00:08:24,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-09-01 00:08:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions.
[2023-09-01 00:08:24,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45982142857142855
[2023-09-01 00:08:24,166 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 309 transitions.
[2023-09-01 00:08:24,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 309 transitions.
[2023-09-01 00:08:24,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-09-01 00:08:24,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 309 transitions.
[2023-09-01 00:08:24,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,169 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,169 INFO L175 Difference]: Start difference. First operand has 23 places, 13 transitions, 47 flow. Second operand 4 states and 309 transitions.
[2023-09-01 00:08:24,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 14 transitions, 73 flow
[2023-09-01 00:08:24,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 14 transitions, 67 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-09-01 00:08:24,170 INFO L231 Difference]: Finished difference. Result has 23 places, 9 transitions, 33 flow
[2023-09-01 00:08:24,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=33, PETRI_PLACES=23, PETRI_TRANSITIONS=9}
[2023-09-01 00:08:24,171 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places.
[2023-09-01 00:08:24,172 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 9 transitions, 33 flow
[2023-09-01 00:08:24,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,172 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-09-01 00:08:24,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-09-01 00:08:24,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-09-01 00:08:24,173 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] ===
[2023-09-01 00:08:24,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-09-01 00:08:24,173 INFO L85 PathProgramCache]: Analyzing trace with hash -827914920, now seen corresponding path program 1 times
[2023-09-01 00:08:24,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-09-01 00:08:24,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685277612]
[2023-09-01 00:08:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-09-01 00:08:24,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-09-01 00:08:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-09-01 00:08:24,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-09-01 00:08:24,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-09-01 00:08:24,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685277612]
[2023-09-01 00:08:24,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685277612] provided 1 perfect and 0 imperfect interpolant sequences
[2023-09-01 00:08:24,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-09-01 00:08:24,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-09-01 00:08:24,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453135097]
[2023-09-01 00:08:24,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-09-01 00:08:24,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-09-01 00:08:24,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-09-01 00:08:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-09-01 00:08:24,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-09-01 00:08:24,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 168
[2023-09-01 00:08:24,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 9 transitions, 33 flow. Second operand has 6 states, 6 states have (on average 70.33333333333333) internal successors, (422), 6 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-09-01 00:08:24,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 168
[2023-09-01 00:08:24,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-09-01 00:08:24,637 INFO L130 PetriNetUnfolder]: 4/17 cut-off events.
[2023-09-01 00:08:24,637 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-09-01 00:08:24,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 17 events. 4/17 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 2 based on Foata normal form. 2/19 useless extension candidates. Maximal degree in co-relation 44. Up to 9 conditions per place.
[2023-09-01 00:08:24,637 INFO L137 encePairwiseOnDemand]: 165/168 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions.
[2023-09-01 00:08:24,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 9 transitions, 47 flow
[2023-09-01 00:08:24,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-09-01 00:08:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-09-01 00:08:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions.
[2023-09-01 00:08:24,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42410714285714285
[2023-09-01 00:08:24,639 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 285 transitions.
[2023-09-01 00:08:24,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 285 transitions.
[2023-09-01 00:08:24,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-09-01 00:08:24,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 285 transitions.
[2023-09-01 00:08:24,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,641 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,641 INFO L175 Difference]: Start difference. First operand has 23 places, 9 transitions, 33 flow. Second operand 4 states and 285 transitions.
[2023-09-01 00:08:24,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 9 transitions, 47 flow
[2023-09-01 00:08:24,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 9 transitions, 40 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-09-01 00:08:24,642 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow
[2023-09-01 00:08:24,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0}
[2023-09-01 00:08:24,643 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, -2 predicate places.
[2023-09-01 00:08:24,643 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow
[2023-09-01 00:08:24,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.33333333333333) internal successors, (422), 6 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-09-01 00:08:24,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining)
[2023-09-01 00:08:24,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining)
[2023-09-01 00:08:24,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining)
[2023-09-01 00:08:24,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining)
[2023-09-01 00:08:24,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining)
[2023-09-01 00:08:24,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining)
[2023-09-01 00:08:24,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 10 remaining)
[2023-09-01 00:08:24,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 10 remaining)
[2023-09-01 00:08:24,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 10 remaining)
[2023-09-01 00:08:24,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 10 remaining)
[2023-09-01 00:08:24,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-09-01 00:08:24,648 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2023-09-01 00:08:24,653 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-09-01 00:08:24,653 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-09-01 00:08:24,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:08:24 BasicIcfg
[2023-09-01 00:08:24,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-09-01 00:08:24,657 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-09-01 00:08:24,657 INFO L271 PluginConnector]: Initializing Witness Printer...
[2023-09-01 00:08:24,657 INFO L275 PluginConnector]: Witness Printer initialized
[2023-09-01 00:08:24,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:08:14" (3/4) ...
[2023-09-01 00:08:24,660 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-09-01 00:08:24,665 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun
[2023-09-01 00:08:24,668 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2023-09-01 00:08:24,669 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-09-01 00:08:24,669 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-09-01 00:08:24,696 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2023-09-01 00:08:24,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-09-01 00:08:24,697 INFO L158 Benchmark]: Toolchain (without parser) took 11841.61ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 60.2MB in the beginning and 65.4MB in the end (delta: -5.2MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB.
[2023-09-01 00:08:24,697 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-09-01 00:08:24,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 671.90ms. Allocated memory is still 81.8MB. Free memory was 60.2MB in the beginning and 52.8MB in the end (delta: 7.5MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB.
[2023-09-01 00:08:24,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.49ms. Allocated memory is still 81.8MB. Free memory was 52.8MB in the beginning and 50.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-09-01 00:08:24,698 INFO L158 Benchmark]: Boogie Preprocessor took 53.17ms. Allocated memory is still 81.8MB. Free memory was 50.4MB in the beginning and 49.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-09-01 00:08:24,698 INFO L158 Benchmark]: RCFGBuilder took 462.69ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 35.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-09-01 00:08:24,698 INFO L158 Benchmark]: TraceAbstraction took 10522.94ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 57.4MB in the beginning and 67.5MB in the end (delta: -10.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB.
[2023-09-01 00:08:24,699 INFO L158 Benchmark]: Witness Printer took 39.38ms. Allocated memory is still 107.0MB. Free memory was 67.5MB in the beginning and 65.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-09-01 00:08:24,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 671.90ms. Allocated memory is still 81.8MB. Free memory was 60.2MB in the beginning and 52.8MB in the end (delta: 7.5MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 70.49ms. Allocated memory is still 81.8MB. Free memory was 52.8MB in the beginning and 50.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 53.17ms. Allocated memory is still 81.8MB. Free memory was 50.4MB in the beginning and 49.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 462.69ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 35.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 10522.94ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 57.4MB in the beginning and 67.5MB in the end (delta: -10.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB.
* Witness Printer took 39.38ms. Allocated memory is still 107.0MB. Free memory was 67.5MB in the beginning and 65.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 8.0s, 84 PlacesBefore, 21 PlacesAfterwards, 82 TransitionsBefore, 18 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 9 FixpointIterations, 62 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 85 TotalNumberOfCompositions, 1013 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 443, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 162, independent: 144, independent conditional: 0, independent unconditional: 144, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 443, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 162, unknown conditional: 0, unknown unconditional: 162] , Statistics on independence cache: Total cache size (in pairs): 19, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
- PositiveResult [Line: 1000]: 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
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 3 procedures, 93 locations, 10 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: 10.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 528 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 273 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 624 IncrementalHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 13 mSDtfsCounter, 624 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=6, InterpolantAutomatonStates: 25, 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, 1.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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
7 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-09-01 00:08:24,717 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