./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version e19ca921
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-e19ca92
[2021-12-22 13:36:21,226 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-12-22 13:36:21,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-22 13:36:21,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-22 13:36:21,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-22 13:36:21,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-22 13:36:21,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-22 13:36:21,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-22 13:36:21,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-22 13:36:21,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-22 13:36:21,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-12-22 13:36:21,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-22 13:36:21,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-22 13:36:21,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-22 13:36:21,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-22 13:36:21,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-22 13:36:21,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-22 13:36:21,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-22 13:36:21,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-22 13:36:21,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-22 13:36:21,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-22 13:36:21,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-22 13:36:21,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-12-22 13:36:21,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-22 13:36:21,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-22 13:36:21,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-22 13:36:21,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-22 13:36:21,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-22 13:36:21,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-22 13:36:21,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-22 13:36:21,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-22 13:36:21,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-22 13:36:21,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-22 13:36:21,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-22 13:36:21,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-22 13:36:21,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-22 13:36:21,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-22 13:36:21,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-22 13:36:21,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-22 13:36:21,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-22 13:36:21,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-12-22 13:36:21,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-12-22 13:36:21,315 INFO L113 SettingsManager]: Loading preferences was successful
[2021-12-22 13:36:21,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-22 13:36:21,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-22 13:36:21,316 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-22 13:36:21,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-22 13:36:21,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-22 13:36:21,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-22 13:36:21,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-12-22 13:36:21,318 INFO L138 SettingsManager]: * Use SBE=true
[2021-12-22 13:36:21,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-22 13:36:21,318 INFO L138 SettingsManager]: * sizeof long=4
[2021-12-22 13:36:21,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-12-22 13:36:21,318 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-12-22 13:36:21,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-12-22 13:36:21,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-12-22 13:36:21,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-22 13:36:21,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-12-22 13:36:21,319 INFO L138 SettingsManager]: * sizeof long double=12
[2021-12-22 13:36:21,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-12-22 13:36:21,320 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-12-22 13:36:21,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-12-22 13:36:21,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-22 13:36:21,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-12-22 13:36:21,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-12-22 13:36:21,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-22 13:36:21,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-22 13:36:21,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-12-22 13:36:21,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-22 13:36:21,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-12-22 13:36:21,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-12-22 13:36:21,321 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-12-22 13:36:21,321 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-12-22 13:36:21,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-22 13:36:21,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-12-22 13:36:21,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f
[2021-12-22 13:36:21,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-22 13:36:21,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-22 13:36:21,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-22 13:36:21,531 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-12-22 13:36:21,531 INFO L275 PluginConnector]: CDTParser initialized
[2021-12-22 13:36:21,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i
[2021-12-22 13:36:21,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af61dcade/2caf5d4ed4b347459ec9391ad68378c0/FLAGdfc5415ae
[2021-12-22 13:36:22,004 INFO L306 CDTParser]: Found 1 translation units.
[2021-12-22 13:36:22,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i
[2021-12-22 13:36:22,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af61dcade/2caf5d4ed4b347459ec9391ad68378c0/FLAGdfc5415ae
[2021-12-22 13:36:22,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af61dcade/2caf5d4ed4b347459ec9391ad68378c0
[2021-12-22 13:36:22,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-22 13:36:22,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-22 13:36:22,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-22 13:36:22,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-22 13:36:22,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-22 13:36:22,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c02a812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22, skipping insertion in model container
[2021-12-22 13:36:22,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-12-22 13:36:22,090 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-12-22 13:36:22,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101]
[2021-12-22 13:36:22,320 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-12-22 13:36:22,330 INFO L203 MainTranslator]: Completed pre-run
[2021-12-22 13:36:22,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101]
[2021-12-22 13:36:22,376 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-12-22 13:36:22,397 INFO L208 MainTranslator]: Completed translation
[2021-12-22 13:36:22,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22 WrapperNode
[2021-12-22 13:36:22,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-22 13:36:22,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-22 13:36:22,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-22 13:36:22,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-22 13:36:22,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,433 INFO L137 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48
[2021-12-22 13:36:22,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-22 13:36:22,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-22 13:36:22,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-22 13:36:22,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-12-22 13:36:22,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-22 13:36:22,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-22 13:36:22,449 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-12-22 13:36:22,449 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-12-22 13:36:22,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (1/1) ...
[2021-12-22 13:36:22,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-22 13:36:22,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-22 13:36:22,494 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)
[2021-12-22 13:36:22,510 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
[2021-12-22 13:36:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-12-22 13:36:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-12-22 13:36:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2021-12-22 13:36:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-12-22 13:36:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-12-22 13:36:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2021-12-22 13:36:22,528 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2021-12-22 13:36:22,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-12-22 13:36:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-12-22 13:36:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-22 13:36:22,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-22 13:36:22,530 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-12-22 13:36:22,663 INFO L234 CfgBuilder]: Building ICFG
[2021-12-22 13:36:22,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-22 13:36:22,773 INFO L275 CfgBuilder]: Performing block encoding
[2021-12-22 13:36:22,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-22 13:36:22,778 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-12-22 13:36:22,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:36:22 BoogieIcfgContainer
[2021-12-22 13:36:22,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-22 13:36:22,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-22 13:36:22,781 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-12-22 13:36:22,784 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-12-22 13:36:22,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:36:22" (1/3) ...
[2021-12-22 13:36:22,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eee0330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:36:22, skipping insertion in model container
[2021-12-22 13:36:22,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:36:22" (2/3) ...
[2021-12-22 13:36:22,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eee0330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:36:22, skipping insertion in model container
[2021-12-22 13:36:22,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:36:22" (3/3) ...
[2021-12-22 13:36:22,786 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i
[2021-12-22 13:36:22,790 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-12-22 13:36:22,790 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-22 13:36:22,791 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-12-22 13:36:22,791 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-12-22 13:36:22,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,810 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,811 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,811 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,811 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,811 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,812 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,812 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,813 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,813 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,813 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,814 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,815 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,815 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,815 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,815 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,815 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,816 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,816 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,816 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,817 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,819 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,819 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,820 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,820 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-12-22 13:36:22,823 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2021-12-22 13:36:22,864 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-22 13:36:22,875 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-12-22 13:36:22,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-12-22 13:36:22,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 156 flow
[2021-12-22 13:36:22,927 INFO L129 PetriNetUnfolder]: 3/73 cut-off events.
[2021-12-22 13:36:22,928 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2021-12-22 13:36:22,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 3/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place.
[2021-12-22 13:36:22,931 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 156 flow
[2021-12-22 13:36:22,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 65 transitions, 133 flow
[2021-12-22 13:36:22,946 INFO L129 PetriNetUnfolder]: 0/27 cut-off events.
[2021-12-22 13:36:22,947 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-12-22 13:36:22,947 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-12-22 13:36:22,948 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-22 13:36:22,948 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2021-12-22 13:36:22,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-22 13:36:22,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1283893648, now seen corresponding path program 1 times
[2021-12-22 13:36:22,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-22 13:36:22,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931449053]
[2021-12-22 13:36:22,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-22 13:36:22,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-22 13:36:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-22 13:36:23,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-22 13:36:23,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-22 13:36:23,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931449053]
[2021-12-22 13:36:23,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931449053] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-22 13:36:23,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-22 13:36:23,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-12-22 13:36:23,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457008044]
[2021-12-22 13:36:23,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-22 13:36:23,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-12-22 13:36:23,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-22 13:36:23,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-12-22 13:36:23,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-12-22 13:36:23,189 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74
[2021-12-22 13:36:23,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 65 transitions, 133 flow. Second operand has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-12-22 13:36:23,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74
[2021-12-22 13:36:23,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-12-22 13:36:23,303 INFO L129 PetriNetUnfolder]: 28/152 cut-off events.
[2021-12-22 13:36:23,304 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2021-12-22 13:36:23,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 152 events. 28/152 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 504 event pairs, 6 based on Foata normal form. 3/149 useless extension candidates. Maximal degree in co-relation 188. Up to 24 conditions per place.
[2021-12-22 13:36:23,306 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 10 selfloop transitions, 9 changer transitions 21/81 dead transitions.
[2021-12-22 13:36:23,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 81 transitions, 237 flow
[2021-12-22 13:36:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-12-22 13:36:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2021-12-22 13:36:23,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 527 transitions.
[2021-12-22 13:36:23,326 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7912912912912913
[2021-12-22 13:36:23,327 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 527 transitions.
[2021-12-22 13:36:23,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 527 transitions.
[2021-12-22 13:36:23,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-12-22 13:36:23,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 527 transitions.
[2021-12-22 13:36:23,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 58.55555555555556) internal successors, (527), 9 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,343 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,345 INFO L186 Difference]: Start difference. First operand has 66 places, 65 transitions, 133 flow. Second operand 9 states and 527 transitions.
[2021-12-22 13:36:23,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 81 transitions, 237 flow
[2021-12-22 13:36:23,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 81 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places.
[2021-12-22 13:36:23,357 INFO L242 Difference]: Finished difference. Result has 73 places, 56 transitions, 146 flow
[2021-12-22 13:36:23,358 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=146, PETRI_PLACES=73, PETRI_TRANSITIONS=56}
[2021-12-22 13:36:23,361 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 7 predicate places.
[2021-12-22 13:36:23,361 INFO L470 AbstractCegarLoop]: Abstraction has has 73 places, 56 transitions, 146 flow
[2021-12-22 13:36:23,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,361 INFO L246 CegarLoopForPetriNet]: Found error trace
[2021-12-22 13:36:23,362 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-22 13:36:23,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-12-22 13:36:23,362 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2021-12-22 13:36:23,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-22 13:36:23,363 INFO L85 PathProgramCache]: Analyzing trace with hash -479425025, now seen corresponding path program 1 times
[2021-12-22 13:36:23,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-22 13:36:23,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546072059]
[2021-12-22 13:36:23,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-22 13:36:23,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-22 13:36:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-22 13:36:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-22 13:36:23,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-22 13:36:23,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546072059]
[2021-12-22 13:36:23,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546072059] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-22 13:36:23,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-22 13:36:23,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-12-22 13:36:23,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655692978]
[2021-12-22 13:36:23,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-22 13:36:23,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-12-22 13:36:23,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-22 13:36:23,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-12-22 13:36:23,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-12-22 13:36:23,434 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 74
[2021-12-22 13:36:23,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 56 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 47.166666666666664) internal successors, (283), 6 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-12-22 13:36:23,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 74
[2021-12-22 13:36:23,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-12-22 13:36:23,476 INFO L129 PetriNetUnfolder]: 0/45 cut-off events.
[2021-12-22 13:36:23,476 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES.
[2021-12-22 13:36:23,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 45 events. 0/45 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 4/49 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place.
[2021-12-22 13:36:23,477 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions.
[2021-12-22 13:36:23,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 45 transitions, 137 flow
[2021-12-22 13:36:23,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-12-22 13:36:23,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-12-22 13:36:23,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 327 transitions.
[2021-12-22 13:36:23,478 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6312741312741312
[2021-12-22 13:36:23,478 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 327 transitions.
[2021-12-22 13:36:23,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 327 transitions.
[2021-12-22 13:36:23,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-12-22 13:36:23,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 327 transitions.
[2021-12-22 13:36:23,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 46.714285714285715) internal successors, (327), 7 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,481 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,481 INFO L186 Difference]: Start difference. First operand has 73 places, 56 transitions, 146 flow. Second operand 7 states and 327 transitions.
[2021-12-22 13:36:23,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 45 transitions, 137 flow
[2021-12-22 13:36:23,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 125 flow, removed 0 selfloop flow, removed 7 redundant places.
[2021-12-22 13:36:23,482 INFO L242 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow
[2021-12-22 13:36:23,482 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0}
[2021-12-22 13:36:23,482 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, -10 predicate places.
[2021-12-22 13:36:23,483 INFO L470 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow
[2021-12-22 13:36:23,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.166666666666664) internal successors, (283), 6 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-22 13:36:23,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2021-12-22 13:36:23,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining)
[2021-12-22 13:36:23,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining)
[2021-12-22 13:36:23,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-12-22 13:36:23,488 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2021-12-22 13:36:23,489 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-12-22 13:36:23,489 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-12-22 13:36:23,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:36:23 BasicIcfg
[2021-12-22 13:36:23,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-12-22 13:36:23,492 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-12-22 13:36:23,492 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-12-22 13:36:23,492 INFO L275 PluginConnector]: Witness Printer initialized
[2021-12-22 13:36:23,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:36:22" (3/4) ...
[2021-12-22 13:36:23,494 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-12-22 13:36:23,498 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun
[2021-12-22 13:36:23,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2021-12-22 13:36:23,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-12-22 13:36:23,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-12-22 13:36:23,501 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-12-22 13:36:23,525 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2021-12-22 13:36:23,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-12-22 13:36:23,525 INFO L158 Benchmark]: Toolchain (without parser) took 1484.93ms. Allocated memory is still 130.0MB. Free memory was 101.5MB in the beginning and 62.9MB in the end (delta: 38.5MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB.
[2021-12-22 13:36:23,526 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-12-22 13:36:23,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.05ms. Allocated memory is still 130.0MB. Free memory was 101.2MB in the beginning and 96.4MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-12-22 13:36:23,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.95ms. Allocated memory is still 130.0MB. Free memory was 96.4MB in the beginning and 94.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-22 13:36:23,540 INFO L158 Benchmark]: Boogie Preprocessor took 13.76ms. Allocated memory is still 130.0MB. Free memory was 94.3MB in the beginning and 93.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-22 13:36:23,540 INFO L158 Benchmark]: RCFGBuilder took 331.70ms. Allocated memory is still 130.0MB. Free memory was 93.2MB in the beginning and 81.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-12-22 13:36:23,540 INFO L158 Benchmark]: TraceAbstraction took 710.51ms. Allocated memory is still 130.0MB. Free memory was 81.1MB in the beginning and 65.6MB in the end (delta: 15.5MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB.
[2021-12-22 13:36:23,540 INFO L158 Benchmark]: Witness Printer took 32.70ms. Allocated memory is still 130.0MB. Free memory was 65.6MB in the beginning and 62.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2021-12-22 13:36:23,542 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 79.7MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 355.05ms. Allocated memory is still 130.0MB. Free memory was 101.2MB in the beginning and 96.4MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 34.95ms. Allocated memory is still 130.0MB. Free memory was 96.4MB in the beginning and 94.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 13.76ms. Allocated memory is still 130.0MB. Free memory was 94.3MB in the beginning and 93.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 331.70ms. Allocated memory is still 130.0MB. Free memory was 93.2MB in the beginning and 81.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 710.51ms. Allocated memory is still 130.0MB. Free memory was 81.1MB in the beginning and 65.6MB in the end (delta: 15.5MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB.
* Witness Printer took 32.70ms. Allocated memory is still 130.0MB. Free memory was 65.6MB in the beginning and 62.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 19]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 19]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 3 procedures, 87 locations, 3 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: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 19 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=1, InterpolantAutomatonStates: 16, 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, 0.1s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 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
2 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2021-12-22 13:36:23,585 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