./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 AFTER --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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:40:05,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:40:05,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:40:05,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:40:05,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:40:05,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:40:05,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:40:05,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:40:05,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:40:05,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:40:05,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:40:05,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:40:05,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:40:05,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:40:05,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:40:05,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:40:05,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:40:05,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:40:05,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:40:05,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:40:05,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:40:05,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:40:05,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:40:05,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:40:05,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:40:05,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:40:05,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:40:05,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:40:05,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:40:05,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:40:05,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:40:05,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:40:05,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:40:05,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:40:05,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:40:05,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:40:05,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:40:05,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:40:05,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:40:05,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:40:05,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:40:05,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:40:05,609 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:40:05,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:40:05,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:40:05,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:40:05,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:40:05,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:40:05,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:40:05,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:40:05,612 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:40:05,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:40:05,613 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:40:05,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:40:05,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:40:05,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:40:05,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:40:05,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:40:05,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:40:05,614 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:40:05,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:40:05,615 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:40:05,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:40:05,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:40:05,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:40:05,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:40:05,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:40:05,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:40:05,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:40:05,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:40:05,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:40:05,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:40:05,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:40:05,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:40:05,617 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:40:05,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:40:05,617 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:40:05,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:40:05,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:40:05,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:40:05,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:40:05,940 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:40:05,940 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:40:05,941 INFO L432 ainManager$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 [2023-08-30 17:40:07,132 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:40:07,423 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:40:07,423 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2023-08-30 17:40:07,434 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf542d92d/6097dfd86580415389e13134e64593b2/FLAGd02d1ca8a [2023-08-30 17:40:07,453 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf542d92d/6097dfd86580415389e13134e64593b2 [2023-08-30 17:40:07,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:40:07,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:40:07,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:40:07,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:40:07,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:40:07,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:07,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556fd47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07, skipping insertion in model container [2023-08-30 17:40:07,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:07,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:40:07,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:40:07,684 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] [2023-08-30 17:40:07,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:40:07,854 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:40:07,868 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] [2023-08-30 17:40:07,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:40:07,974 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:40:07,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07 WrapperNode [2023-08-30 17:40:07,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:40:07,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:40:07,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:40:07,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:40:07,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,031 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2023-08-30 17:40:08,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:40:08,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:40:08,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:40:08,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:40:08,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,048 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:40:08,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:40:08,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:40:08,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:40:08,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (1/1) ... [2023-08-30 17:40:08,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:40:08,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:40:08,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 17:40:08,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 17:40:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:40:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:40:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 17:40:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:40:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:40:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 17:40:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 17:40:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:40:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:40:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:40:08,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:40:08,121 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 17:40:08,267 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:40:08,269 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:40:08,397 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:40:08,402 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:40:08,403 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 17:40:08,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:08 BoogieIcfgContainer [2023-08-30 17:40:08,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:40:08,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:40:08,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:40:08,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:40:08,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:40:07" (1/3) ... [2023-08-30 17:40:08,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1e170f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:08, skipping insertion in model container [2023-08-30 17:40:08,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:07" (2/3) ... [2023-08-30 17:40:08,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1e170f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:08, skipping insertion in model container [2023-08-30 17:40:08,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:08" (3/3) ... [2023-08-30 17:40:08,418 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2023-08-30 17:40:08,424 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:40:08,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:40:08,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 17:40:08,457 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:40:08,502 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 17:40:08,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 142 flow [2023-08-30 17:40:08,598 INFO L130 PetriNetUnfolder]: 3/66 cut-off events. [2023-08-30 17:40:08,599 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:40:08,604 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. [2023-08-30 17:40:08,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 67 transitions, 142 flow [2023-08-30 17:40:08,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 59 transitions, 121 flow [2023-08-30 17:40:08,612 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:40:08,624 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 59 transitions, 121 flow [2023-08-30 17:40:08,628 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 59 transitions, 121 flow [2023-08-30 17:40:08,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 59 transitions, 121 flow [2023-08-30 17:40:08,657 INFO L130 PetriNetUnfolder]: 3/59 cut-off events. [2023-08-30 17:40:08,657 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:08,658 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. [2023-08-30 17:40:08,659 INFO L119 LiptonReduction]: Number of co-enabled transitions 420 [2023-08-30 17:40:10,746 INFO L134 LiptonReduction]: Checked pairs total: 855 [2023-08-30 17:40:10,746 INFO L136 LiptonReduction]: Total number of compositions: 61 [2023-08-30 17:40:10,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:40:10,775 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;@726bede4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:40:10,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-30 17:40:10,778 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 17:40:10,779 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:10,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:40:10,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 17:40:10,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:40:10,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:40:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash 256, now seen corresponding path program 1 times [2023-08-30 17:40:10,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:40:10,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101744545] [2023-08-30 17:40:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:40:10,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:40:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:40:10,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:40:10,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:40:10,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101744545] [2023-08-30 17:40:10,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101744545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:40:10,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:40:10,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 17:40:10,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413674153] [2023-08-30 17:40:10,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:40:10,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 17:40:10,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:40:10,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 17:40:10,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 17:40:10,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 128 [2023-08-30 17:40:10,932 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) [2023-08-30 17:40:10,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:40:10,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 128 [2023-08-30 17:40:10,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:40:10,968 INFO L130 PetriNetUnfolder]: 22/53 cut-off events. [2023-08-30 17:40:10,969 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:10,969 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. [2023-08-30 17:40:10,970 INFO L137 encePairwiseOnDemand]: 127/128 looper letters, 11 selfloop transitions, 0 changer transitions 0/12 dead transitions. [2023-08-30 17:40:10,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 12 transitions, 49 flow [2023-08-30 17:40:10,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 17:40:10,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 17:40:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 134 transitions. [2023-08-30 17:40:10,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5234375 [2023-08-30 17:40:10,984 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 134 transitions. [2023-08-30 17:40:10,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 134 transitions. [2023-08-30 17:40:10,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:40:10,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 134 transitions. [2023-08-30 17:40:10,993 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) [2023-08-30 17:40:10,997 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) [2023-08-30 17:40:10,998 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) [2023-08-30 17:40:10,999 INFO L175 Difference]: Start difference. First operand has 16 places, 13 transitions, 29 flow. Second operand 2 states and 134 transitions. [2023-08-30 17:40:11,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 12 transitions, 49 flow [2023-08-30 17:40:11,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 12 transitions, 48 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:40:11,002 INFO L231 Difference]: Finished difference. Result has 15 places, 12 transitions, 26 flow [2023-08-30 17:40:11,004 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} [2023-08-30 17:40:11,007 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2023-08-30 17:40:11,008 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 12 transitions, 26 flow [2023-08-30 17:40:11,008 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) [2023-08-30 17:40:11,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:40:11,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 17:40:11,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:40:11,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:40:11,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:40:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash 7820586, now seen corresponding path program 1 times [2023-08-30 17:40:11,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:40:11,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841866566] [2023-08-30 17:40:11,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:40:11,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:40:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:40:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:40:11,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:40:11,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841866566] [2023-08-30 17:40:11,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841866566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:40:11,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:40:11,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 17:40:11,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720977013] [2023-08-30 17:40:11,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:40:11,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:40:11,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:40:11,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:40:11,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:40:11,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 128 [2023-08-30 17:40:11,319 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) [2023-08-30 17:40:11,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:40:11,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 128 [2023-08-30 17:40:11,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:40:11,354 INFO L130 PetriNetUnfolder]: 19/47 cut-off events. [2023-08-30 17:40:11,354 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:11,355 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. [2023-08-30 17:40:11,355 INFO L137 encePairwiseOnDemand]: 124/128 looper letters, 6 selfloop transitions, 3 changer transitions 6/15 dead transitions. [2023-08-30 17:40:11,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 15 transitions, 62 flow [2023-08-30 17:40:11,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:40:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:40:11,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2023-08-30 17:40:11,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4947916666666667 [2023-08-30 17:40:11,362 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 190 transitions. [2023-08-30 17:40:11,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 190 transitions. [2023-08-30 17:40:11,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:40:11,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 190 transitions. [2023-08-30 17:40:11,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 17:40:11,365 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) [2023-08-30 17:40:11,366 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) [2023-08-30 17:40:11,366 INFO L175 Difference]: Start difference. First operand has 15 places, 12 transitions, 26 flow. Second operand 3 states and 190 transitions. [2023-08-30 17:40:11,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 15 transitions, 62 flow [2023-08-30 17:40:11,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 15 transitions, 62 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 17:40:11,367 INFO L231 Difference]: Finished difference. Result has 18 places, 8 transitions, 29 flow [2023-08-30 17:40:11,367 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} [2023-08-30 17:40:11,368 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2023-08-30 17:40:11,368 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 8 transitions, 29 flow [2023-08-30 17:40:11,373 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) [2023-08-30 17:40:11,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:40:11,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 17:40:11,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:40:11,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:40:11,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:40:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1074083452, now seen corresponding path program 1 times [2023-08-30 17:40:11,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:40:11,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567755064] [2023-08-30 17:40:11,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:40:11,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:40:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:40:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 17:40:11,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:40:11,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567755064] [2023-08-30 17:40:11,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567755064] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:40:11,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:40:11,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 17:40:11,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718287532] [2023-08-30 17:40:11,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:40:11,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 17:40:11,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:40:11,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 17:40:11,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 17:40:11,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 128 [2023-08-30 17:40:11,529 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) [2023-08-30 17:40:11,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:40:11,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 128 [2023-08-30 17:40:11,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:40:11,551 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-30 17:40:11,551 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:11,551 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. [2023-08-30 17:40:11,551 INFO L137 encePairwiseOnDemand]: 122/128 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2023-08-30 17:40:11,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 7 transitions, 39 flow [2023-08-30 17:40:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 17:40:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 17:40:11,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2023-08-30 17:40:11,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4296875 [2023-08-30 17:40:11,554 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 275 transitions. [2023-08-30 17:40:11,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 275 transitions. [2023-08-30 17:40:11,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:40:11,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 275 transitions. [2023-08-30 17:40:11,556 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) [2023-08-30 17:40:11,557 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) [2023-08-30 17:40:11,558 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) [2023-08-30 17:40:11,558 INFO L175 Difference]: Start difference. First operand has 18 places, 8 transitions, 29 flow. Second operand 5 states and 275 transitions. [2023-08-30 17:40:11,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 7 transitions, 39 flow [2023-08-30 17:40:11,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:40:11,559 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2023-08-30 17:40:11,559 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} [2023-08-30 17:40:11,559 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2023-08-30 17:40:11,559 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2023-08-30 17:40:11,560 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) [2023-08-30 17:40:11,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-30 17:40:11,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-08-30 17:40:11,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-30 17:40:11,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 17:40:11,564 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-30 17:40:11,566 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:40:11,566 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:40:11,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:40:11 BasicIcfg [2023-08-30 17:40:11,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:40:11,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:40:11,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:40:11,570 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:40:11,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:08" (3/4) ... [2023-08-30 17:40:11,572 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 17:40:11,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 17:40:11,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-08-30 17:40:11,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 17:40:11,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 17:40:11,581 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 17:40:11,618 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:40:11,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:40:11,619 INFO L158 Benchmark]: Toolchain (without parser) took 4160.56ms. Allocated memory was 62.9MB in the beginning and 96.5MB in the end (delta: 33.6MB). Free memory was 39.4MB in the beginning and 47.8MB in the end (delta: -8.3MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2023-08-30 17:40:11,620 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 40.2MB in the beginning and 40.2MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:40:11,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.46ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 39.1MB in the beginning and 53.8MB in the end (delta: -14.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-08-30 17:40:11,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.12ms. Allocated memory is still 79.7MB. Free memory was 53.8MB in the beginning and 51.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:40:11,621 INFO L158 Benchmark]: Boogie Preprocessor took 19.30ms. Allocated memory is still 79.7MB. Free memory was 51.9MB in the beginning and 50.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:40:11,621 INFO L158 Benchmark]: RCFGBuilder took 352.17ms. Allocated memory is still 79.7MB. Free memory was 50.6MB in the beginning and 38.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 17:40:11,621 INFO L158 Benchmark]: TraceAbstraction took 3156.23ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 57.8MB in the beginning and 50.6MB in the end (delta: 7.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-08-30 17:40:11,622 INFO L158 Benchmark]: Witness Printer took 49.60ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 47.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 17:40:11,623 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 62.9MB. Free memory was 40.2MB in the beginning and 40.2MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.46ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 39.1MB in the beginning and 53.8MB in the end (delta: -14.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.12ms. Allocated memory is still 79.7MB. Free memory was 53.8MB in the beginning and 51.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.30ms. Allocated memory is still 79.7MB. Free memory was 51.9MB in the beginning and 50.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.17ms. Allocated memory is still 79.7MB. Free memory was 50.6MB in the beginning and 38.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3156.23ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 57.8MB in the beginning and 50.6MB in the end (delta: 7.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Witness Printer took 49.60ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 47.8MB in the end (delta: 2.9MB). 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: 3.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, 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, 0.1s 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! [2023-08-30 17:40:11,640 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