./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/pthread/singleton_with-uninit-problems.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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:38:53,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:38:53,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:38:53,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:38:53,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:38:53,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:38:53,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:38:53,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:38:53,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:38:53,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:38:53,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:38:53,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:38:53,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:38:53,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:38:53,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:38:53,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:38:53,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:38:53,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:38:53,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:38:53,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:38:53,994 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:38:53,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:38:53,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:38:53,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:38:53,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:38:54,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:38:54,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:38:54,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:38:54,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:38:54,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:38:54,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:38:54,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:38:54,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:38:54,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:38:54,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:38:54,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:38:54,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:38:54,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:38:54,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:38:54,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:38:54,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:38:54,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:38:54,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:38:54,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:38:54,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:38:54,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:38:54,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:38:54,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:38:54,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:38:54,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:38:54,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:38:54,034 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:38:54,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:38:54,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:38:54,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:38:54,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:38:54,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:38:54,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:38:54,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:38:54,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:38:54,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:38:54,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:38:54,037 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:38:54,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:38:54,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:38:54,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:38:54,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:38:54,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:38:54,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:38:54,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:38:54,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:38:54,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:38:54,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:38:54,039 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:38:54,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:38:54,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:38:54,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2022-07-13 21:38:54,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:38:54,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:38:54,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:38:54,208 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:38:54,208 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:38:54,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-07-13 21:38:54,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecaf7df79/9a06a178deec49e5b9258cc9499060c6/FLAG554b0bcfa [2022-07-13 21:38:54,683 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:38:54,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-07-13 21:38:54,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecaf7df79/9a06a178deec49e5b9258cc9499060c6/FLAG554b0bcfa [2022-07-13 21:38:55,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecaf7df79/9a06a178deec49e5b9258cc9499060c6 [2022-07-13 21:38:55,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:38:55,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:38:55,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:38:55,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:38:55,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:38:55,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5948f7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55, skipping insertion in model container [2022-07-13 21:38:55,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:38:55,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:38:55,261 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-13 21:38:55,413 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/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-07-13 21:38:55,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:38:55,439 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:38:55,452 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-13 21:38:55,462 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/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-07-13 21:38:55,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:38:55,509 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:38:55,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55 WrapperNode [2022-07-13 21:38:55,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:38:55,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:38:55,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:38:55,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:38:55,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,563 INFO L137 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-07-13 21:38:55,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:38:55,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:38:55,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:38:55,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:38:55,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:38:55,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:38:55,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:38:55,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:38:55,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (1/1) ... [2022-07-13 21:38:55,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:38:55,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:38:55,635 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) [2022-07-13 21:38:55,637 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 [2022-07-13 21:38:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-13 21:38:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:38:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:38:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-13 21:38:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 21:38:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-07-13 21:38:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-07-13 21:38:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-13 21:38:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-13 21:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-13 21:38:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-13 21:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-13 21:38:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-13 21:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 21:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:38:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:38:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:38:55,667 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:38:55,757 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:38:55,758 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:38:55,976 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:38:55,981 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:38:55,982 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 21:38:55,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:38:55 BoogieIcfgContainer [2022-07-13 21:38:55,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:38:55,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:38:55,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:38:55,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:38:55,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:38:55" (1/3) ... [2022-07-13 21:38:55,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f493a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:38:55, skipping insertion in model container [2022-07-13 21:38:55,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:38:55" (2/3) ... [2022-07-13 21:38:55,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f493a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:38:55, skipping insertion in model container [2022-07-13 21:38:55,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:38:55" (3/3) ... [2022-07-13 21:38:55,990 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2022-07-13 21:38:56,012 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:38:56,019 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:38:56,019 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 21:38:56,020 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:38:56,111 INFO L135 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-07-13 21:38:56,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 201 transitions, 509 flow [2022-07-13 21:38:56,184 INFO L129 PetriNetUnfolder]: 7/138 cut-off events. [2022-07-13 21:38:56,187 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-13 21:38:56,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 138 events. 7/138 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 116. Up to 3 conditions per place. [2022-07-13 21:38:56,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 201 transitions, 509 flow [2022-07-13 21:38:56,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 125 transitions, 301 flow [2022-07-13 21:38:56,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:38:56,221 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@58df7cbc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c802754 [2022-07-13 21:38:56,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-07-13 21:38:56,244 INFO L129 PetriNetUnfolder]: 6/124 cut-off events. [2022-07-13 21:38:56,244 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-13 21:38:56,245 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:38:56,245 INFO L200 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:38:56,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2022-07-13 21:38:56,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:38:56,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1907511289, now seen corresponding path program 1 times [2022-07-13 21:38:56,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:38:56,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535381476] [2022-07-13 21:38:56,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:38:56,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:38:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:38:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:38:56,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:38:56,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535381476] [2022-07-13 21:38:56,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535381476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:38:56,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:38:56,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 21:38:56,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105538451] [2022-07-13 21:38:56,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:38:56,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 21:38:56,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:38:56,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 21:38:56,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 21:38:56,592 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 203 [2022-07-13 21:38:56,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 125 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 162.8) internal successors, (814), 5 states have internal predecessors, (814), 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) [2022-07-13 21:38:56,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:38:56,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 203 [2022-07-13 21:38:56,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:38:56,737 INFO L129 PetriNetUnfolder]: 5/129 cut-off events. [2022-07-13 21:38:56,738 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-07-13 21:38:56,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 129 events. 5/129 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 57 event pairs, 0 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 131. Up to 26 conditions per place. [2022-07-13 21:38:56,739 INFO L132 encePairwiseOnDemand]: 199/203 looper letters, 25 selfloop transitions, 0 changer transitions 4/128 dead transitions. [2022-07-13 21:38:56,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 128 transitions, 365 flow [2022-07-13 21:38:56,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 21:38:56,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-13 21:38:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 825 transitions. [2022-07-13 21:38:56,762 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.812807881773399 [2022-07-13 21:38:56,763 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 825 transitions. [2022-07-13 21:38:56,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 825 transitions. [2022-07-13 21:38:56,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:38:56,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 825 transitions. [2022-07-13 21:38:56,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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) [2022-07-13 21:38:56,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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) [2022-07-13 21:38:56,780 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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) [2022-07-13 21:38:56,781 INFO L186 Difference]: Start difference. First operand has 138 places, 125 transitions, 301 flow. Second operand 5 states and 825 transitions. [2022-07-13 21:38:56,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 128 transitions, 365 flow [2022-07-13 21:38:56,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 128 transitions, 331 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-07-13 21:38:56,786 INFO L242 Difference]: Finished difference. Result has 133 places, 124 transitions, 271 flow [2022-07-13 21:38:56,789 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=133, PETRI_TRANSITIONS=124} [2022-07-13 21:38:56,791 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -5 predicate places. [2022-07-13 21:38:56,791 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 124 transitions, 271 flow [2022-07-13 21:38:56,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 162.8) internal successors, (814), 5 states have internal predecessors, (814), 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) [2022-07-13 21:38:56,792 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:38:56,792 INFO L200 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:38:56,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:38:56,792 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2022-07-13 21:38:56,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:38:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash 151529301, now seen corresponding path program 1 times [2022-07-13 21:38:56,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:38:56,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210293537] [2022-07-13 21:38:56,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:38:56,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:38:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:38:56,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:38:56,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:38:56,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210293537] [2022-07-13 21:38:56,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210293537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:38:56,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:38:56,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 21:38:56,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346875294] [2022-07-13 21:38:56,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:38:56,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 21:38:56,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:38:56,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 21:38:56,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 21:38:56,963 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 203 [2022-07-13 21:38:56,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 124 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 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) [2022-07-13 21:38:56,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:38:56,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 203 [2022-07-13 21:38:56,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:38:57,240 INFO L129 PetriNetUnfolder]: 580/1440 cut-off events. [2022-07-13 21:38:57,241 INFO L130 PetriNetUnfolder]: For 29/31 co-relation queries the response was YES. [2022-07-13 21:38:57,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2409 conditions, 1440 events. 580/1440 cut-off events. For 29/31 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7988 event pairs, 169 based on Foata normal form. 1/1362 useless extension candidates. Maximal degree in co-relation 2403. Up to 520 conditions per place. [2022-07-13 21:38:57,254 INFO L132 encePairwiseOnDemand]: 193/203 looper letters, 51 selfloop transitions, 7 changer transitions 12/150 dead transitions. [2022-07-13 21:38:57,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 150 transitions, 475 flow [2022-07-13 21:38:57,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 21:38:57,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-13 21:38:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 731 transitions. [2022-07-13 21:38:57,257 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7201970443349753 [2022-07-13 21:38:57,257 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 731 transitions. [2022-07-13 21:38:57,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 731 transitions. [2022-07-13 21:38:57,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:38:57,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 731 transitions. [2022-07-13 21:38:57,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.2) internal successors, (731), 5 states have internal predecessors, (731), 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) [2022-07-13 21:38:57,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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) [2022-07-13 21:38:57,263 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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) [2022-07-13 21:38:57,263 INFO L186 Difference]: Start difference. First operand has 133 places, 124 transitions, 271 flow. Second operand 5 states and 731 transitions. [2022-07-13 21:38:57,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 150 transitions, 475 flow [2022-07-13 21:38:57,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 150 transitions, 469 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-07-13 21:38:57,270 INFO L242 Difference]: Finished difference. Result has 135 places, 130 transitions, 323 flow [2022-07-13 21:38:57,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=323, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2022-07-13 21:38:57,272 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -3 predicate places. [2022-07-13 21:38:57,272 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 323 flow [2022-07-13 21:38:57,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 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) [2022-07-13 21:38:57,273 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:38:57,273 INFO L200 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:38:57,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:38:57,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2022-07-13 21:38:57,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:38:57,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1333811383, now seen corresponding path program 1 times [2022-07-13 21:38:57,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:38:57,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876773644] [2022-07-13 21:38:57,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:38:57,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:38:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:38:57,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:38:57,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:38:57,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876773644] [2022-07-13 21:38:57,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876773644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:38:57,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:38:57,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 21:38:57,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045988914] [2022-07-13 21:38:57,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:38:57,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 21:38:57,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:38:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 21:38:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 21:38:57,483 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 203 [2022-07-13 21:38:57,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 323 flow. Second operand has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 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) [2022-07-13 21:38:57,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:38:57,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 203 [2022-07-13 21:38:57,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:38:57,726 INFO L129 PetriNetUnfolder]: 525/1361 cut-off events. [2022-07-13 21:38:57,726 INFO L130 PetriNetUnfolder]: For 629/679 co-relation queries the response was YES. [2022-07-13 21:38:57,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 1361 events. 525/1361 cut-off events. For 629/679 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7570 event pairs, 182 based on Foata normal form. 13/1307 useless extension candidates. Maximal degree in co-relation 2921. Up to 655 conditions per place. [2022-07-13 21:38:57,730 INFO L132 encePairwiseOnDemand]: 192/203 looper letters, 0 selfloop transitions, 0 changer transitions 149/149 dead transitions. [2022-07-13 21:38:57,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 149 transitions, 534 flow [2022-07-13 21:38:57,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 21:38:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-13 21:38:57,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 964 transitions. [2022-07-13 21:38:57,733 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6783954961294862 [2022-07-13 21:38:57,733 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 964 transitions. [2022-07-13 21:38:57,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 964 transitions. [2022-07-13 21:38:57,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:38:57,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 964 transitions. [2022-07-13 21:38:57,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.71428571428572) internal successors, (964), 7 states have internal predecessors, (964), 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) [2022-07-13 21:38:57,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 203.0) internal successors, (1624), 8 states have internal predecessors, (1624), 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) [2022-07-13 21:38:57,738 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 203.0) internal successors, (1624), 8 states have internal predecessors, (1624), 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) [2022-07-13 21:38:57,738 INFO L186 Difference]: Start difference. First operand has 135 places, 130 transitions, 323 flow. Second operand 7 states and 964 transitions. [2022-07-13 21:38:57,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 149 transitions, 534 flow [2022-07-13 21:38:57,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 149 transitions, 510 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-07-13 21:38:57,743 INFO L242 Difference]: Finished difference. Result has 133 places, 0 transitions, 0 flow [2022-07-13 21:38:57,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=133, PETRI_TRANSITIONS=0} [2022-07-13 21:38:57,745 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -5 predicate places. [2022-07-13 21:38:57,745 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 0 transitions, 0 flow [2022-07-13 21:38:57,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 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) [2022-07-13 21:38:57,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2022-07-13 21:38:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2022-07-13 21:38:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2022-07-13 21:38:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2022-07-13 21:38:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-07-13 21:38:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2022-07-13 21:38:57,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2022-07-13 21:38:57,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-07-13 21:38:57,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-07-13 21:38:57,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2022-07-13 21:38:57,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2022-07-13 21:38:57,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-07-13 21:38:57,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 21:38:57,757 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-13 21:38:57,760 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 21:38:57,760 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 21:38:57,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 09:38:57 BasicIcfg [2022-07-13 21:38:57,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 21:38:57,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 21:38:57,766 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 21:38:57,766 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 21:38:57,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:38:55" (3/4) ... [2022-07-13 21:38:57,768 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 21:38:57,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2022-07-13 21:38:57,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-07-13 21:38:57,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-07-13 21:38:57,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-07-13 21:38:57,776 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-13 21:38:57,777 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-13 21:38:57,777 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 21:38:57,777 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 21:38:57,802 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 21:38:57,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 21:38:57,803 INFO L158 Benchmark]: Toolchain (without parser) took 2756.21ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 129.3MB in the beginning and 106.7MB in the end (delta: 22.6MB). Peak memory consumption was 88.0MB. Max. memory is 16.1GB. [2022-07-13 21:38:57,803 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 92.3MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:38:57,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.72ms. Allocated memory is still 159.4MB. Free memory was 128.9MB in the beginning and 112.0MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 21:38:57,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.16ms. Allocated memory is still 159.4MB. Free memory was 112.0MB in the beginning and 109.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:38:57,806 INFO L158 Benchmark]: Boogie Preprocessor took 43.55ms. Allocated memory is still 159.4MB. Free memory was 109.9MB in the beginning and 108.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:38:57,807 INFO L158 Benchmark]: RCFGBuilder took 373.97ms. Allocated memory is still 159.4MB. Free memory was 108.2MB in the beginning and 93.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 21:38:57,807 INFO L158 Benchmark]: TraceAbstraction took 1779.91ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 93.1MB in the beginning and 108.8MB in the end (delta: -15.7MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2022-07-13 21:38:57,807 INFO L158 Benchmark]: Witness Printer took 36.77ms. Allocated memory is still 226.5MB. Free memory was 108.8MB in the beginning and 106.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:38:57,808 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 92.3MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.72ms. Allocated memory is still 159.4MB. Free memory was 128.9MB in the beginning and 112.0MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.16ms. Allocated memory is still 159.4MB. Free memory was 112.0MB in the beginning and 109.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.55ms. Allocated memory is still 159.4MB. Free memory was 109.9MB in the beginning and 108.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 373.97ms. Allocated memory is still 159.4MB. Free memory was 108.2MB in the beginning and 93.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1779.91ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 93.1MB in the beginning and 108.8MB in the end (delta: -15.7MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. * Witness Printer took 36.77ms. Allocated memory is still 226.5MB. Free memory was 108.8MB in the beginning and 106.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1123]: 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 11 procedures, 230 locations, 12 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 361 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 460 IncrementalHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 51 mSDtfsCounter, 460 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 355 NumberOfCodeBlocks, 355 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 680 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-13 21:38:57,841 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