./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/04-mutex_28-base_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 b122c739007cec8de5153cdeef5c57a127766b5f2404e5e5123833b6458d9bfd --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER
--- Real Ultimate output ---
This is Ultimate 0.2.3-?-b8dbc81
[2023-08-30 03:42:42,214 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2023-08-30 03:42:42,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2023-08-30 03:42:42,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-08-30 03:42:42,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-08-30 03:42:42,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-08-30 03:42:42,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-08-30 03:42:42,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2023-08-30 03:42:42,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-08-30 03:42:42,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-08-30 03:42:42,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2023-08-30 03:42:42,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-08-30 03:42:42,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-08-30 03:42:42,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-08-30 03:42:42,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-08-30 03:42:42,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-08-30 03:42:42,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-08-30 03:42:42,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-08-30 03:42:42,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-08-30 03:42:42,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2023-08-30 03:42:42,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-08-30 03:42:42,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-08-30 03:42:42,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2023-08-30 03:42:42,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-08-30 03:42:42,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-08-30 03:42:42,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-08-30 03:42:42,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-08-30 03:42:42,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-08-30 03:42:42,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-08-30 03:42:42,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-08-30 03:42:42,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-08-30 03:42:42,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-08-30 03:42:42,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-08-30 03:42:42,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2023-08-30 03:42:42,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-08-30 03:42:42,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2023-08-30 03:42:42,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-08-30 03:42:42,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-08-30 03:42:42,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2023-08-30 03:42:42,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2023-08-30 03:42:42,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2023-08-30 03:42:42,322 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-08-30 03:42:42,356 INFO L113 SettingsManager]: Loading preferences was successful
[2023-08-30 03:42:42,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2023-08-30 03:42:42,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-08-30 03:42:42,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-08-30 03:42:42,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-08-30 03:42:42,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-08-30 03:42:42,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-08-30 03:42:42,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2023-08-30 03:42:42,360 INFO L138 SettingsManager]: * Use SBE=true
[2023-08-30 03:42:42,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-08-30 03:42:42,361 INFO L138 SettingsManager]: * sizeof long=4
[2023-08-30 03:42:42,361 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2023-08-30 03:42:42,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2023-08-30 03:42:42,361 INFO L138 SettingsManager]: * sizeof POINTER=4
[2023-08-30 03:42:42,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2023-08-30 03:42:42,362 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-08-30 03:42:42,362 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2023-08-30 03:42:42,362 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-08-30 03:42:42,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-08-30 03:42:42,363 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-08-30 03:42:42,363 INFO L138 SettingsManager]: * sizeof long double=12
[2023-08-30 03:42:42,363 INFO L138 SettingsManager]: * Use constant arrays=true
[2023-08-30 03:42:42,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-08-30 03:42:42,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-08-30 03:42:42,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2023-08-30 03:42:42,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-30 03:42:42,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-08-30 03:42:42,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-08-30 03:42:42,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-08-30 03:42:42,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-08-30 03:42:42,365 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-08-30 03:42:42,365 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-08-30 03:42:42,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-08-30 03:42:42,365 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-08-30 03:42:42,366 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b122c739007cec8de5153cdeef5c57a127766b5f2404e5e5123833b6458d9bfd
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER
[2023-08-30 03:42:42,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-08-30 03:42:42,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-08-30 03:42:42,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-08-30 03:42:42,719 INFO L271 PluginConnector]: Initializing CDTParser...
[2023-08-30 03:42:42,720 INFO L275 PluginConnector]: CDTParser initialized
[2023-08-30 03:42:42,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i
[2023-08-30 03:42:43,855 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2023-08-30 03:42:44,097 INFO L351 CDTParser]: Found 1 translation units.
[2023-08-30 03:42:44,098 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i
[2023-08-30 03:42:44,122 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d1ef2f68/8b873e018adc4d5093efc494487d3d29/FLAG7f158ba9f
[2023-08-30 03:42:44,137 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d1ef2f68/8b873e018adc4d5093efc494487d3d29
[2023-08-30 03:42:44,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-08-30 03:42:44,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-08-30 03:42:44,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-08-30 03:42:44,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-08-30 03:42:44,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-08-30 03:42:44,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789169fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44, skipping insertion in model container
[2023-08-30 03:42:44,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2023-08-30 03:42:44,197 INFO L178 MainTranslator]: Built tables and reachable declarations
[2023-08-30 03:42:44,548 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-30 03:42:44,567 INFO L203 MainTranslator]: Completed pre-run
[2023-08-30 03:42:44,600 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-30 03:42:44,650 WARN L667 CHandler]: The function g is called, but not defined or handled by StandardFunctionHandler.
[2023-08-30 03:42:44,656 INFO L208 MainTranslator]: Completed translation
[2023-08-30 03:42:44,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44 WrapperNode
[2023-08-30 03:42:44,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-08-30 03:42:44,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-08-30 03:42:44,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-08-30 03:42:44,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2023-08-30 03:42:44,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,714 INFO L138 Inliner]: procedures = 265, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59
[2023-08-30 03:42:44,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-08-30 03:42:44,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-08-30 03:42:44,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2023-08-30 03:42:44,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2023-08-30 03:42:44,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,748 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-08-30 03:42:44,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-08-30 03:42:44,759 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2023-08-30 03:42:44,760 INFO L275 PluginConnector]: RCFGBuilder initialized
[2023-08-30 03:42:44,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (1/1) ...
[2023-08-30 03:42:44,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-30 03:42:44,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-30 03:42:44,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-08-30 03:42:44,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-08-30 03:42:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-08-30 03:42:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-08-30 03:42:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-08-30 03:42:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-08-30 03:42:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-08-30 03:42:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2023-08-30 03:42:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2023-08-30 03:42:44,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-08-30 03:42:44,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-08-30 03:42:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-08-30 03:42:44,834 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-08-30 03:42:45,032 INFO L236 CfgBuilder]: Building ICFG
[2023-08-30 03:42:45,034 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-08-30 03:42:45,188 INFO L277 CfgBuilder]: Performing block encoding
[2023-08-30 03:42:45,194 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-08-30 03:42:45,194 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-08-30 03:42:45,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:42:45 BoogieIcfgContainer
[2023-08-30 03:42:45,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-08-30 03:42:45,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-08-30 03:42:45,198 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2023-08-30 03:42:45,201 INFO L275 PluginConnector]: TraceAbstraction initialized
[2023-08-30 03:42:45,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:42:44" (1/3) ...
[2023-08-30 03:42:45,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f956206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:42:45, skipping insertion in model container
[2023-08-30 03:42:45,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:44" (2/3) ...
[2023-08-30 03:42:45,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f956206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:42:45, skipping insertion in model container
[2023-08-30 03:42:45,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:42:45" (3/3) ...
[2023-08-30 03:42:45,203 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_28-base_nr.i
[2023-08-30 03:42:45,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-08-30 03:42:45,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2023-08-30 03:42:45,220 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-08-30 03:42:45,286 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-08-30 03:42:45,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 135 flow
[2023-08-30 03:42:45,368 INFO L130 PetriNetUnfolder]: 0/64 cut-off events.
[2023-08-30 03:42:45,368 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-30 03:42:45,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 0/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.
[2023-08-30 03:42:45,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 65 transitions, 135 flow
[2023-08-30 03:42:45,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 60 transitions, 123 flow
[2023-08-30 03:42:45,377 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-30 03:42:45,385 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 60 transitions, 123 flow
[2023-08-30 03:42:45,387 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 60 transitions, 123 flow
[2023-08-30 03:42:45,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 123 flow
[2023-08-30 03:42:45,400 INFO L130 PetriNetUnfolder]: 0/60 cut-off events.
[2023-08-30 03:42:45,400 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-30 03:42:45,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.
[2023-08-30 03:42:45,401 INFO L119 LiptonReduction]: Number of co-enabled transitions 476
[2023-08-30 03:42:47,532 INFO L134 LiptonReduction]: Checked pairs total: 937
[2023-08-30 03:42:47,532 INFO L136 LiptonReduction]: Total number of compositions: 56
[2023-08-30 03:42:47,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-30 03:42:47,550 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;@a20999f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-30 03:42:47,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2023-08-30 03:42:47,553 INFO L130 PetriNetUnfolder]: 0/1 cut-off events.
[2023-08-30 03:42:47,553 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-30 03:42:47,559 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 03:42:47,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1]
[2023-08-30 03:42:47,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] ===
[2023-08-30 03:42:47,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 03:42:47,566 INFO L85 PathProgramCache]: Analyzing trace with hash 237, now seen corresponding path program 1 times
[2023-08-30 03:42:47,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 03:42:47,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434091925]
[2023-08-30 03:42:47,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 03:42:47,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 03:42:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 03:42:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-30 03:42:47,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 03:42:47,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434091925]
[2023-08-30 03:42:47,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434091925] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 03:42:47,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 03:42:47,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2023-08-30 03:42:47,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108146975]
[2023-08-30 03:42:47,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 03:42:47,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-08-30 03:42:47,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 03:42:47,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-08-30 03:42:47,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-08-30 03:42:47,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 121
[2023-08-30 03:42:47,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:47,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 03:42:47,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 121
[2023-08-30 03:42:47,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 03:42:47,827 INFO L130 PetriNetUnfolder]: 15/42 cut-off events.
[2023-08-30 03:42:47,827 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-30 03:42:47,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 42 events. 15/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 98 event pairs, 15 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 78. Up to 41 conditions per place.
[2023-08-30 03:42:47,830 INFO L137 encePairwiseOnDemand]: 119/121 looper letters, 10 selfloop transitions, 0 changer transitions 0/12 dead transitions.
[2023-08-30 03:42:47,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 12 transitions, 47 flow
[2023-08-30 03:42:47,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-08-30 03:42:47,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-08-30 03:42:47,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 140 transitions.
[2023-08-30 03:42:47,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5785123966942148
[2023-08-30 03:42:47,844 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 140 transitions.
[2023-08-30 03:42:47,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 140 transitions.
[2023-08-30 03:42:47,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 03:42:47,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 140 transitions.
[2023-08-30 03:42:47,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 70.0) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:47,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:47,859 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:47,861 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 2 states and 140 transitions.
[2023-08-30 03:42:47,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 12 transitions, 47 flow
[2023-08-30 03:42:47,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 12 transitions, 46 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-30 03:42:47,865 INFO L231 Difference]: Finished difference. Result has 16 places, 12 transitions, 26 flow
[2023-08-30 03:42:47,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=26, PETRI_PLACES=16, PETRI_TRANSITIONS=12}
[2023-08-30 03:42:47,872 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -2 predicate places.
[2023-08-30 03:42:47,872 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 12 transitions, 26 flow
[2023-08-30 03:42:47,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:47,873 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-30 03:42:47,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-08-30 03:42:47,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-08-30 03:42:47,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] ===
[2023-08-30 03:42:47,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-30 03:42:47,881 INFO L85 PathProgramCache]: Analyzing trace with hash -827408817, now seen corresponding path program 1 times
[2023-08-30 03:42:47,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-30 03:42:47,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822563168]
[2023-08-30 03:42:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-30 03:42:47,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-30 03:42:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-30 03:42:48,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-30 03:42:48,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-30 03:42:48,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822563168]
[2023-08-30 03:42:48,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822563168] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-30 03:42:48,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-30 03:42:48,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-30 03:42:48,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089675210]
[2023-08-30 03:42:48,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-30 03:42:48,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-30 03:42:48,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-30 03:42:48,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-30 03:42:48,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-30 03:42:48,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 121
[2023-08-30 03:42:48,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:48,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-30 03:42:48,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 121
[2023-08-30 03:42:48,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-30 03:42:48,236 INFO L130 PetriNetUnfolder]: 10/31 cut-off events.
[2023-08-30 03:42:48,236 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-30 03:42:48,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 31 events. 10/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 67 event pairs, 10 based on Foata normal form. 6/35 useless extension candidates. Maximal degree in co-relation 62. Up to 29 conditions per place.
[2023-08-30 03:42:48,237 INFO L137 encePairwiseOnDemand]: 119/121 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions.
[2023-08-30 03:42:48,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 11 transitions, 42 flow
[2023-08-30 03:42:48,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-30 03:42:48,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-30 03:42:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions.
[2023-08-30 03:42:48,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5234159779614325
[2023-08-30 03:42:48,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 190 transitions.
[2023-08-30 03:42:48,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 190 transitions.
[2023-08-30 03:42:48,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-30 03:42:48,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 190 transitions.
[2023-08-30 03:42:48,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:48,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:48,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:48,248 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 26 flow. Second operand 3 states and 190 transitions.
[2023-08-30 03:42:48,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 11 transitions, 42 flow
[2023-08-30 03:42:48,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 11 transitions, 42 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-30 03:42:48,249 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow
[2023-08-30 03:42:48,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0}
[2023-08-30 03:42:48,249 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -1 predicate places.
[2023-08-30 03:42:48,250 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow
[2023-08-30 03:42:48,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-08-30 03:42:48,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining)
[2023-08-30 03:42:48,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining)
[2023-08-30 03:42:48,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining)
[2023-08-30 03:42:48,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining)
[2023-08-30 03:42:48,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-08-30 03:42:48,254 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-08-30 03:42:48,259 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-08-30 03:42:48,259 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-08-30 03:42:48,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:42:48 BasicIcfg
[2023-08-30 03:42:48,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-08-30 03:42:48,268 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-08-30 03:42:48,268 INFO L271 PluginConnector]: Initializing Witness Printer...
[2023-08-30 03:42:48,268 INFO L275 PluginConnector]: Witness Printer initialized
[2023-08-30 03:42:48,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:42:45" (3/4) ...
[2023-08-30 03:42:48,271 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-08-30 03:42:48,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun
[2023-08-30 03:42:48,281 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2023-08-30 03:42:48,281 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-08-30 03:42:48,281 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-08-30 03:42:48,321 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2023-08-30 03:42:48,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-08-30 03:42:48,322 INFO L158 Benchmark]: Toolchain (without parser) took 4181.75ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 51.0MB in the beginning and 55.9MB in the end (delta: -5.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB.
[2023-08-30 03:42:48,322 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-08-30 03:42:48,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.36ms. Allocated memory is still 79.7MB. Free memory was 50.8MB in the beginning and 42.4MB in the end (delta: 8.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2023-08-30 03:42:48,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.13ms. Allocated memory is still 79.7MB. Free memory was 42.4MB in the beginning and 40.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-08-30 03:42:48,323 INFO L158 Benchmark]: Boogie Preprocessor took 43.20ms. Allocated memory is still 79.7MB. Free memory was 40.1MB in the beginning and 38.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-08-30 03:42:48,324 INFO L158 Benchmark]: RCFGBuilder took 437.37ms. Allocated memory is still 79.7MB. Free memory was 38.9MB in the beginning and 51.4MB in the end (delta: -12.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB.
[2023-08-30 03:42:48,325 INFO L158 Benchmark]: TraceAbstraction took 3069.49ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 50.4MB in the beginning and 58.8MB in the end (delta: -8.4MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB.
[2023-08-30 03:42:48,325 INFO L158 Benchmark]: Witness Printer took 53.25ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 55.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-08-30 03:42:48,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 515.36ms. Allocated memory is still 79.7MB. Free memory was 50.8MB in the beginning and 42.4MB in the end (delta: 8.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 56.13ms. Allocated memory is still 79.7MB. Free memory was 42.4MB in the beginning and 40.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 43.20ms. Allocated memory is still 79.7MB. Free memory was 40.1MB in the beginning and 38.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 437.37ms. Allocated memory is still 79.7MB. Free memory was 38.9MB in the beginning and 51.4MB in the end (delta: -12.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 3069.49ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 50.4MB in the beginning and 58.8MB in the end (delta: -8.4MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB.
* Witness Printer took 53.25ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 55.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 2.1s, 64 PlacesBefore, 18 PlacesAfterwards, 60 TransitionsBefore, 14 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 56 TotalNumberOfCompositions, 937 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 481, independent: 381, independent conditional: 0, independent unconditional: 381, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 245, independent: 224, independent conditional: 0, independent unconditional: 224, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 481, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 245, unknown conditional: 0, unknown unconditional: 245] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
- 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: 937]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 3 procedures, 85 locations, 4 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: 2.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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
3 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-08-30 03:42:48,353 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