./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 10:42:03,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 10:42:03,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 10:42:03,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 10:42:03,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 10:42:03,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 10:42:03,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 10:42:03,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 10:42:03,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 10:42:03,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 10:42:03,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 10:42:03,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 10:42:03,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 10:42:03,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 10:42:03,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 10:42:03,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 10:42:03,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 10:42:03,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 10:42:03,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 10:42:03,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 10:42:03,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 10:42:03,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 10:42:03,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 10:42:03,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 10:42:03,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 10:42:03,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 10:42:03,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 10:42:03,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 10:42:03,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 10:42:03,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 10:42:03,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 10:42:03,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 10:42:03,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 10:42:03,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 10:42:03,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 10:42:03,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 10:42:03,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 10:42:03,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 10:42:03,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 10:42:03,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 10:42:03,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 10:42:03,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 10:42:03,641 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 10:42:03,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 10:42:03,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 10:42:03,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 10:42:03,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 10:42:03,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 10:42:03,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 10:42:03,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 10:42:03,645 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 10:42:03,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 10:42:03,646 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 10:42:03,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 10:42:03,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 10:42:03,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 10:42:03,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 10:42:03,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 10:42:03,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 10:42:03,647 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 10:42:03,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 10:42:03,648 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 10:42:03,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 10:42:03,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 10:42:03,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 10:42:03,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 10:42:03,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:42:03,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 10:42:03,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 10:42:03,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 10:42:03,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 10:42:03,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 10:42:03,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 10:42:03,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 10:42:03,650 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 10:42:03,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 10:42:03,651 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 10:42:03,651 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 10:42:03,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 10:42:03,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 10:42:03,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 10:42:03,983 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 10:42:03,983 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 10:42:03,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2023-09-01 10:42:05,210 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 10:42:05,452 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 10:42:05,452 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2023-09-01 10:42:05,464 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1045db14/bc7449bd4b844bab9b22c372c5e464ad/FLAGcdba3987d [2023-09-01 10:42:05,475 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1045db14/bc7449bd4b844bab9b22c372c5e464ad [2023-09-01 10:42:05,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 10:42:05,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 10:42:05,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 10:42:05,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 10:42:05,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 10:42:05,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:05,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b28ea64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05, skipping insertion in model container [2023-09-01 10:42:05,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:05,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 10:42:05,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 10:42:05,686 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2023-09-01 10:42:05,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:42:05,866 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 10:42:05,879 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2023-09-01 10:42:05,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:42:05,949 INFO L208 MainTranslator]: Completed translation [2023-09-01 10:42:05,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05 WrapperNode [2023-09-01 10:42:05,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 10:42:05,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 10:42:05,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 10:42:05,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 10:42:05,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:05,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,006 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2023-09-01 10:42:06,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 10:42:06,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 10:42:06,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 10:42:06,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 10:42:06,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,062 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 10:42:06,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 10:42:06,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 10:42:06,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 10:42:06,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (1/1) ... [2023-09-01 10:42:06,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:42:06,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 10:42:06,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 10:42:06,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 10:42:06,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 10:42:06,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 10:42:06,140 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 10:42:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 10:42:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 10:42:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 10:42:06,141 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 10:42:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 10:42:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 10:42:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 10:42:06,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 10:42:06,143 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 10:42:06,312 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 10:42:06,313 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 10:42:06,419 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 10:42:06,424 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 10:42:06,425 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 10:42:06,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:06 BoogieIcfgContainer [2023-09-01 10:42:06,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 10:42:06,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 10:42:06,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 10:42:06,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 10:42:06,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 10:42:05" (1/3) ... [2023-09-01 10:42:06,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a50440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:42:06, skipping insertion in model container [2023-09-01 10:42:06,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:05" (2/3) ... [2023-09-01 10:42:06,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a50440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:42:06, skipping insertion in model container [2023-09-01 10:42:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:06" (3/3) ... [2023-09-01 10:42:06,434 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2023-09-01 10:42:06,440 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 10:42:06,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 10:42:06,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-09-01 10:42:06,449 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 10:42:06,505 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 10:42:06,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 142 flow [2023-09-01 10:42:06,563 INFO L130 PetriNetUnfolder]: 3/66 cut-off events. [2023-09-01 10:42:06,563 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 10:42:06,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 3/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-09-01 10:42:06,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 67 transitions, 142 flow [2023-09-01 10:42:06,570 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 59 transitions, 121 flow [2023-09-01 10:42:06,572 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:42:06,579 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 59 transitions, 121 flow [2023-09-01 10:42:06,581 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 59 transitions, 121 flow [2023-09-01 10:42:06,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 59 transitions, 121 flow [2023-09-01 10:42:06,594 INFO L130 PetriNetUnfolder]: 3/59 cut-off events. [2023-09-01 10:42:06,595 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:06,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 3/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-09-01 10:42:06,596 INFO L119 LiptonReduction]: Number of co-enabled transitions 420 [2023-09-01 10:42:08,638 INFO L134 LiptonReduction]: Checked pairs total: 855 [2023-09-01 10:42:08,638 INFO L136 LiptonReduction]: Total number of compositions: 61 [2023-09-01 10:42:08,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 10:42:08,657 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c259cf0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:42:08,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-09-01 10:42:08,658 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 10:42:08,658 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:08,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:42:08,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 10:42:08,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 10:42:08,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:42:08,664 INFO L85 PathProgramCache]: Analyzing trace with hash 256, now seen corresponding path program 1 times [2023-09-01 10:42:08,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:42:08,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322301096] [2023-09-01 10:42:08,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:42:08,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:42:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:42:08,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:42:08,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:42:08,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322301096] [2023-09-01 10:42:08,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322301096] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:42:08,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:42:08,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 10:42:08,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74955204] [2023-09-01 10:42:08,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:42:08,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 10:42:08,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:42:08,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 10:42:08,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 10:42:08,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 128 [2023-09-01 10:42:08,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 13 transitions, 29 flow. Second operand has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:08,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:42:08,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 128 [2023-09-01 10:42:08,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:42:08,837 INFO L130 PetriNetUnfolder]: 22/53 cut-off events. [2023-09-01 10:42:08,837 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:08,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 53 events. 22/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 145 event pairs, 20 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 100. Up to 52 conditions per place. [2023-09-01 10:42:08,839 INFO L137 encePairwiseOnDemand]: 127/128 looper letters, 11 selfloop transitions, 0 changer transitions 0/12 dead transitions. [2023-09-01 10:42:08,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 12 transitions, 49 flow [2023-09-01 10:42:08,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 10:42:08,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 10:42:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 134 transitions. [2023-09-01 10:42:08,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5234375 [2023-09-01 10:42:08,857 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 134 transitions. [2023-09-01 10:42:08,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 134 transitions. [2023-09-01 10:42:08,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:42:08,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 134 transitions. [2023-09-01 10:42:08,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:08,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:08,866 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:08,868 INFO L175 Difference]: Start difference. First operand has 16 places, 13 transitions, 29 flow. Second operand 2 states and 134 transitions. [2023-09-01 10:42:08,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 12 transitions, 49 flow [2023-09-01 10:42:08,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 12 transitions, 48 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 10:42:08,871 INFO L231 Difference]: Finished difference. Result has 15 places, 12 transitions, 26 flow [2023-09-01 10:42:08,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=26, PETRI_PLACES=15, PETRI_TRANSITIONS=12} [2023-09-01 10:42:08,876 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2023-09-01 10:42:08,876 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 12 transitions, 26 flow [2023-09-01 10:42:08,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:08,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:42:08,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 10:42:08,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 10:42:08,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 10:42:08,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:42:08,878 INFO L85 PathProgramCache]: Analyzing trace with hash 7820586, now seen corresponding path program 1 times [2023-09-01 10:42:08,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:42:08,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355496755] [2023-09-01 10:42:08,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:42:08,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:42:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:42:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:42:09,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:42:09,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355496755] [2023-09-01 10:42:09,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355496755] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:42:09,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:42:09,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 10:42:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417935847] [2023-09-01 10:42:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:42:09,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 10:42:09,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:42:09,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 10:42:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 10:42:09,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 128 [2023-09-01 10:42:09,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 12 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:09,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:42:09,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 128 [2023-09-01 10:42:09,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:42:09,155 INFO L130 PetriNetUnfolder]: 19/47 cut-off events. [2023-09-01 10:42:09,156 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:09,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 47 events. 19/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 114 event pairs, 12 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 96. Up to 39 conditions per place. [2023-09-01 10:42:09,156 INFO L137 encePairwiseOnDemand]: 124/128 looper letters, 6 selfloop transitions, 3 changer transitions 6/15 dead transitions. [2023-09-01 10:42:09,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 15 transitions, 62 flow [2023-09-01 10:42:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 10:42:09,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 10:42:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2023-09-01 10:42:09,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4947916666666667 [2023-09-01 10:42:09,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 190 transitions. [2023-09-01 10:42:09,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 190 transitions. [2023-09-01 10:42:09,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:42:09,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 190 transitions. [2023-09-01 10:42:09,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:09,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:09,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:09,163 INFO L175 Difference]: Start difference. First operand has 15 places, 12 transitions, 26 flow. Second operand 3 states and 190 transitions. [2023-09-01 10:42:09,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 15 transitions, 62 flow [2023-09-01 10:42:09,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 15 transitions, 62 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 10:42:09,164 INFO L231 Difference]: Finished difference. Result has 18 places, 8 transitions, 29 flow [2023-09-01 10:42:09,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=29, PETRI_PLACES=18, PETRI_TRANSITIONS=8} [2023-09-01 10:42:09,165 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2023-09-01 10:42:09,165 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 8 transitions, 29 flow [2023-09-01 10:42:09,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:09,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:42:09,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 10:42:09,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 10:42:09,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 10:42:09,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:42:09,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1074083452, now seen corresponding path program 1 times [2023-09-01 10:42:09,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:42:09,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479920022] [2023-09-01 10:42:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:42:09,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:42:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 10:42:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 10:42:09,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 10:42:09,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479920022] [2023-09-01 10:42:09,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479920022] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 10:42:09,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 10:42:09,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 10:42:09,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956552544] [2023-09-01 10:42:09,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 10:42:09,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 10:42:09,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 10:42:09,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 10:42:09,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 10:42:09,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 128 [2023-09-01 10:42:09,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 8 transitions, 29 flow. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:09,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 10:42:09,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 128 [2023-09-01 10:42:09,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 10:42:09,365 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-09-01 10:42:09,365 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:09,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 4/12 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-09-01 10:42:09,367 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2023-09-01 10:42:09,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 7 transitions, 39 flow [2023-09-01 10:42:09,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 10:42:09,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 10:42:09,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2023-09-01 10:42:09,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4296875 [2023-09-01 10:42:09,373 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 275 transitions. [2023-09-01 10:42:09,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 275 transitions. [2023-09-01 10:42:09,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 10:42:09,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 275 transitions. [2023-09-01 10:42:09,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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) [2023-09-01 10:42:09,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:09,379 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:09,379 INFO L175 Difference]: Start difference. First operand has 18 places, 8 transitions, 29 flow. Second operand 5 states and 275 transitions. [2023-09-01 10:42:09,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 7 transitions, 39 flow [2023-09-01 10:42:09,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 10:42:09,380 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2023-09-01 10:42:09,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2023-09-01 10:42:09,381 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2023-09-01 10:42:09,382 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2023-09-01 10:42:09,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 10:42:09,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-09-01 10:42:09,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-09-01 10:42:09,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-09-01 10:42:09,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 10:42:09,386 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-09-01 10:42:09,389 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 10:42:09,389 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 10:42:09,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 10:42:09 BasicIcfg [2023-09-01 10:42:09,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 10:42:09,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 10:42:09,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 10:42:09,397 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 10:42:09,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:06" (3/4) ... [2023-09-01 10:42:09,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 10:42:09,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 10:42:09,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-09-01 10:42:09,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 10:42:09,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 10:42:09,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 10:42:09,444 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 10:42:09,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 10:42:09,452 INFO L158 Benchmark]: Toolchain (without parser) took 3972.04ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 67.0MB in the beginning and 42.0MB in the end (delta: 24.9MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2023-09-01 10:42:09,453 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:42:09,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.98ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 48.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-09-01 10:42:09,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.99ms. Allocated memory is still 90.2MB. Free memory was 48.0MB in the beginning and 46.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 10:42:09,454 INFO L158 Benchmark]: Boogie Preprocessor took 63.14ms. Allocated memory is still 90.2MB. Free memory was 46.0MB in the beginning and 70.7MB in the end (delta: -24.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-09-01 10:42:09,454 INFO L158 Benchmark]: RCFGBuilder took 355.22ms. Allocated memory is still 90.2MB. Free memory was 70.7MB in the beginning and 58.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-09-01 10:42:09,454 INFO L158 Benchmark]: TraceAbstraction took 2967.53ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 57.2MB in the beginning and 45.2MB in the end (delta: 12.0MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2023-09-01 10:42:09,454 INFO L158 Benchmark]: Witness Printer took 53.84ms. Allocated memory is still 113.2MB. Free memory was 45.2MB in the beginning and 42.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 10:42:09,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.98ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 48.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.99ms. Allocated memory is still 90.2MB. Free memory was 48.0MB in the beginning and 46.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.14ms. Allocated memory is still 90.2MB. Free memory was 46.0MB in the beginning and 70.7MB in the end (delta: -24.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 355.22ms. Allocated memory is still 90.2MB. Free memory was 70.7MB in the beginning and 58.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2967.53ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 57.2MB in the beginning and 45.2MB in the end (delta: 12.0MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Witness Printer took 53.84ms. Allocated memory is still 113.2MB. Free memory was 45.2MB in the beginning and 42.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 60 PlacesBefore, 16 PlacesAfterwards, 59 TransitionsBefore, 13 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 61 TotalNumberOfCompositions, 855 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 505, independent: 413, independent conditional: 0, independent unconditional: 413, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 244, independent: 223, independent conditional: 0, independent unconditional: 223, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 505, independent: 190, independent conditional: 0, independent unconditional: 190, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 244, unknown conditional: 0, unknown unconditional: 244] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 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, 81 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: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 34 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 10:42:09,474 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