./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_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_42-traces-ex-mini_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 a1b66927274f90f2d29b42a27dd6906879a79472ec3d29ac0ef54d445fc2204b --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 17:42:01,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:42:01,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:42:01,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:42:01,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:42:01,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:42:01,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:42:01,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:42:01,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:42:01,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:42:01,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:42:01,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:42:01,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:42:01,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:42:01,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:42:02,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:42:02,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:42:02,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:42:02,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:42:02,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:42:02,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:42:02,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:42:02,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:42:02,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:42:02,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:42:02,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:42:02,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:42:02,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:42:02,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:42:02,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:42:02,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:42:02,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:42:02,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:42:02,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:42:02,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:42:02,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:42:02,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:42:02,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:42:02,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:42:02,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:42:02,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:42:02,022 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:42:02,052 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:42:02,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:42:02,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:42:02,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:42:02,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:42:02,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:42:02,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:42:02,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:42:02,055 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:42:02,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:42:02,056 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:42:02,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:42:02,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:42:02,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:42:02,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:42:02,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:42:02,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:42:02,058 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:42:02,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:42:02,058 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:42:02,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:42:02,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:42:02,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:42:02,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:42:02,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:42:02,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:42:02,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:42:02,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:42:02,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:42:02,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:42:02,060 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:42:02,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:42:02,060 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:42:02,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:42:02,061 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:42:02,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b66927274f90f2d29b42a27dd6906879a79472ec3d29ac0ef54d445fc2204b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:42:02,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:42:02,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:42:02,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:42:02,368 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:42:02,368 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:42:02,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2023-08-30 17:42:03,477 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:42:03,688 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:42:03,688 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2023-08-30 17:42:03,699 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ede0d0f/636b4125429f46a3a036a187f635d305/FLAGc15b0a76e [2023-08-30 17:42:03,715 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ede0d0f/636b4125429f46a3a036a187f635d305 [2023-08-30 17:42:03,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:42:03,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:42:03,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:42:03,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:42:03,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:42:03,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:42:03" (1/1) ... [2023-08-30 17:42:03,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f89d8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:03, skipping insertion in model container [2023-08-30 17:42:03,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:42:03" (1/1) ... [2023-08-30 17:42:03,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:42:03,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:42:03,948 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_42-traces-ex-mini_true.i[1091,1104] [2023-08-30 17:42:04,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:42:04,109 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:42:04,124 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_42-traces-ex-mini_true.i[1091,1104] [2023-08-30 17:42:04,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:42:04,187 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:42:04,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04 WrapperNode [2023-08-30 17:42:04,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:42:04,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:42:04,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:42:04,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:42:04,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,232 INFO L138 Inliner]: procedures = 162, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2023-08-30 17:42:04,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:42:04,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:42:04,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:42:04,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:42:04,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:42:04,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:42:04,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:42:04,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:42:04,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (1/1) ... [2023-08-30 17:42:04,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:42:04,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:42:04,283 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 17:42:04,316 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 17:42:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:42:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 17:42:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:42:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:42:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 17:42:04,344 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 17:42:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:42:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:42:04,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:42:04,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:42:04,346 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 17:42:04,503 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:42:04,505 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:42:04,686 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:42:04,692 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:42:04,692 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 17:42:04,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:42:04 BoogieIcfgContainer [2023-08-30 17:42:04,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:42:04,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:42:04,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:42:04,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:42:04,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:42:03" (1/3) ... [2023-08-30 17:42:04,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b2e1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:42:04, skipping insertion in model container [2023-08-30 17:42:04,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:42:04" (2/3) ... [2023-08-30 17:42:04,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b2e1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:42:04, skipping insertion in model container [2023-08-30 17:42:04,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:42:04" (3/3) ... [2023-08-30 17:42:04,705 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_42-traces-ex-mini_true.i [2023-08-30 17:42:04,712 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:42:04,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:42:04,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 17:42:04,722 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:42:04,784 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 17:42:04,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 149 flow [2023-08-30 17:42:04,872 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2023-08-30 17:42:04,872 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:42:04,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-08-30 17:42:04,877 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 149 flow [2023-08-30 17:42:04,882 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 60 transitions, 123 flow [2023-08-30 17:42:04,885 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:42:04,896 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 60 transitions, 123 flow [2023-08-30 17:42:04,900 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 60 transitions, 123 flow [2023-08-30 17:42:04,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 123 flow [2023-08-30 17:42:04,931 INFO L130 PetriNetUnfolder]: 0/60 cut-off events. [2023-08-30 17:42:04,932 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:42:04,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 17:42:04,933 INFO L119 LiptonReduction]: Number of co-enabled transitions 286 [2023-08-30 17:42:07,592 INFO L134 LiptonReduction]: Checked pairs total: 710 [2023-08-30 17:42:07,593 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-08-30 17:42:07,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:42:07,612 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;@3a59072b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:42:07,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-30 17:42:07,620 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 17:42:07,621 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:42:07,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:42:07,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 17:42:07,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:42:07,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:42:07,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1564391401, now seen corresponding path program 1 times [2023-08-30 17:42:07,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:42:07,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202709669] [2023-08-30 17:42:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:42:07,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:42:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:42:07,986 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 17:42:07,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:42:07,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202709669] [2023-08-30 17:42:07,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202709669] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:42:07,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:42:07,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 17:42:07,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134098566] [2023-08-30 17:42:07,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:42:07,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 17:42:08,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:42:08,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 17:42:08,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 17:42:08,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 120 [2023-08-30 17:42:08,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 27 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 17:42:08,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:42:08,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 120 [2023-08-30 17:42:08,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:42:08,075 INFO L130 PetriNetUnfolder]: 12/42 cut-off events. [2023-08-30 17:42:08,075 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:42:08,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 42 events. 12/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 9 based on Foata normal form. 4/45 useless extension candidates. Maximal degree in co-relation 74. Up to 28 conditions per place. [2023-08-30 17:42:08,078 INFO L137 encePairwiseOnDemand]: 116/120 looper letters, 10 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2023-08-30 17:42:08,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 15 transitions, 59 flow [2023-08-30 17:42:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 17:42:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 17:42:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2023-08-30 17:42:08,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5888888888888889 [2023-08-30 17:42:08,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 212 transitions. [2023-08-30 17:42:08,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 212 transitions. [2023-08-30 17:42:08,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:42:08,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 212 transitions. [2023-08-30 17:42:08,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 17:42:08,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 17:42:08,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 17:42:08,136 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 27 flow. Second operand 3 states and 212 transitions. [2023-08-30 17:42:08,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 15 transitions, 59 flow [2023-08-30 17:42:08,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 17:42:08,140 INFO L231 Difference]: Finished difference. Result has 18 places, 12 transitions, 37 flow [2023-08-30 17:42:08,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, 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=37, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2023-08-30 17:42:08,145 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2023-08-30 17:42:08,145 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 37 flow [2023-08-30 17:42:08,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 17:42:08,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:42:08,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:42:08,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:42:08,147 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:42:08,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:42:08,154 INFO L85 PathProgramCache]: Analyzing trace with hash 312425522, now seen corresponding path program 1 times [2023-08-30 17:42:08,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:42:08,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900034600] [2023-08-30 17:42:08,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:42:08,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:42:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:42:08,322 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 17:42:08,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:42:08,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900034600] [2023-08-30 17:42:08,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900034600] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:42:08,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:42:08,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 17:42:08,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204044334] [2023-08-30 17:42:08,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:42:08,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 17:42:08,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:42:08,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 17:42:08,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 17:42:08,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 120 [2023-08-30 17:42:08,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 37 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 17:42:08,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:42:08,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 120 [2023-08-30 17:42:08,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:42:08,391 INFO L130 PetriNetUnfolder]: 6/30 cut-off events. [2023-08-30 17:42:08,391 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 17:42:08,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 30 events. 6/30 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 2 based on Foata normal form. 4/34 useless extension candidates. Maximal degree in co-relation 59. Up to 16 conditions per place. [2023-08-30 17:42:08,392 INFO L137 encePairwiseOnDemand]: 116/120 looper letters, 7 selfloop transitions, 4 changer transitions 1/14 dead transitions. [2023-08-30 17:42:08,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 14 transitions, 65 flow [2023-08-30 17:42:08,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:42:08,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:42:08,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 262 transitions. [2023-08-30 17:42:08,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2023-08-30 17:42:08,394 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 262 transitions. [2023-08-30 17:42:08,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 262 transitions. [2023-08-30 17:42:08,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:42:08,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 262 transitions. [2023-08-30 17:42:08,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 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 17:42:08,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 17:42:08,398 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 17:42:08,398 INFO L175 Difference]: Start difference. First operand has 18 places, 12 transitions, 37 flow. Second operand 4 states and 262 transitions. [2023-08-30 17:42:08,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 14 transitions, 65 flow [2023-08-30 17:42:08,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 14 transitions, 59 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 17:42:08,399 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 39 flow [2023-08-30 17:42:08,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=39, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2023-08-30 17:42:08,400 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 3 predicate places. [2023-08-30 17:42:08,400 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 12 transitions, 39 flow [2023-08-30 17:42:08,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 17:42:08,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:42:08,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 17:42:08,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 17:42:08,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 17:42:08,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:42:08,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1092785255, now seen corresponding path program 1 times [2023-08-30 17:42:08,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:42:08,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727745217] [2023-08-30 17:42:08,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:42:08,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:42:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 17:42:08,561 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 17:42:08,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 17:42:08,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727745217] [2023-08-30 17:42:08,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727745217] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 17:42:08,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 17:42:08,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 17:42:08,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36435200] [2023-08-30 17:42:08,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 17:42:08,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 17:42:08,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 17:42:08,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 17:42:08,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 17:42:08,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 120 [2023-08-30 17:42:08,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 39 flow. Second operand has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 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 17:42:08,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 17:42:08,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 120 [2023-08-30 17:42:08,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 17:42:08,664 INFO L130 PetriNetUnfolder]: 6/26 cut-off events. [2023-08-30 17:42:08,664 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 17:42:08,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 26 events. 6/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 2 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 55. Up to 12 conditions per place. [2023-08-30 17:42:08,666 INFO L137 encePairwiseOnDemand]: 116/120 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2023-08-30 17:42:08,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 65 flow [2023-08-30 17:42:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 17:42:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 17:42:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2023-08-30 17:42:08,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5270833333333333 [2023-08-30 17:42:08,669 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 253 transitions. [2023-08-30 17:42:08,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 253 transitions. [2023-08-30 17:42:08,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 17:42:08,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 253 transitions. [2023-08-30 17:42:08,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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 17:42:08,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 17:42:08,672 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 17:42:08,672 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 39 flow. Second operand 4 states and 253 transitions. [2023-08-30 17:42:08,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 65 flow [2023-08-30 17:42:08,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 13 transitions, 57 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 17:42:08,673 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-08-30 17:42:08,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-08-30 17:42:08,674 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 2 predicate places. [2023-08-30 17:42:08,674 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-08-30 17:42:08,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 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 17:42:08,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-30 17:42:08,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-30 17:42:08,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 17:42:08,682 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-30 17:42:08,686 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:42:08,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:42:08,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:42:08 BasicIcfg [2023-08-30 17:42:08,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:42:08,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:42:08,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:42:08,693 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:42:08,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:42:04" (3/4) ... [2023-08-30 17:42:08,696 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 17:42:08,701 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 17:42:08,705 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-30 17:42:08,705 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 17:42:08,706 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 17:42:08,706 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 17:42:08,745 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:42:08,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:42:08,747 INFO L158 Benchmark]: Toolchain (without parser) took 5027.07ms. Allocated memory was 69.2MB in the beginning and 107.0MB in the end (delta: 37.7MB). Free memory was 32.8MB in the beginning and 56.0MB in the end (delta: -23.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-08-30 17:42:08,747 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:42:08,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.81ms. Allocated memory is still 69.2MB. Free memory was 32.7MB in the beginning and 35.4MB in the end (delta: -2.8MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-08-30 17:42:08,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.78ms. Allocated memory is still 69.2MB. Free memory was 35.2MB in the beginning and 33.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:42:08,748 INFO L158 Benchmark]: Boogie Preprocessor took 20.22ms. Allocated memory is still 69.2MB. Free memory was 33.3MB in the beginning and 31.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:42:08,749 INFO L158 Benchmark]: RCFGBuilder took 439.59ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 31.9MB in the beginning and 56.8MB in the end (delta: -24.9MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-08-30 17:42:08,749 INFO L158 Benchmark]: TraceAbstraction took 3996.57ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 55.9MB in the beginning and 59.0MB in the end (delta: -3.1MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-08-30 17:42:08,749 INFO L158 Benchmark]: Witness Printer took 52.18ms. Allocated memory is still 107.0MB. Free memory was 59.0MB in the beginning and 56.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:42:08,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.81ms. Allocated memory is still 69.2MB. Free memory was 32.7MB in the beginning and 35.4MB in the end (delta: -2.8MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.78ms. Allocated memory is still 69.2MB. Free memory was 35.2MB in the beginning and 33.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.22ms. Allocated memory is still 69.2MB. Free memory was 33.3MB in the beginning and 31.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.59ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 31.9MB in the beginning and 56.8MB in the end (delta: -24.9MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3996.57ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 55.9MB in the beginning and 59.0MB in the end (delta: -3.1MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Witness Printer took 52.18ms. Allocated memory is still 107.0MB. Free memory was 59.0MB in the beginning and 56.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 64 PlacesBefore, 16 PlacesAfterwards, 60 TransitionsBefore, 12 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, 710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 300, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 145, independent: 128, independent conditional: 0, independent unconditional: 128, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 300, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 145, unknown conditional: 0, unknown unconditional: 145] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 2 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: 3.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 1 mSDtfsCounter, 201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 11, 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, 0.5s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 17:42:08,780 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