./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 11:04:16,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 11:04:16,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 11:04:16,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 11:04:16,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 11:04:16,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 11:04:16,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 11:04:16,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 11:04:16,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 11:04:16,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 11:04:16,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 11:04:16,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 11:04:16,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 11:04:16,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 11:04:16,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 11:04:16,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 11:04:16,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 11:04:16,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 11:04:16,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 11:04:16,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 11:04:16,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 11:04:16,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 11:04:16,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 11:04:16,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 11:04:16,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 11:04:16,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 11:04:16,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 11:04:16,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 11:04:16,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 11:04:16,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 11:04:16,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 11:04:16,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 11:04:16,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 11:04:16,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 11:04:16,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 11:04:16,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 11:04:16,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 11:04:16,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 11:04:16,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 11:04:16,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 11:04:16,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 11:04:16,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 11:04:16,193 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 11:04:16,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 11:04:16,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 11:04:16,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 11:04:16,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 11:04:16,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 11:04:16,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 11:04:16,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 11:04:16,196 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 11:04:16,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 11:04:16,197 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 11:04:16,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 11:04:16,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 11:04:16,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 11:04:16,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 11:04:16,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 11:04:16,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 11:04:16,198 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 11:04:16,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 11:04:16,198 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 11:04:16,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 11:04:16,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 11:04:16,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 11:04:16,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 11:04:16,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 11:04:16,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 11:04:16,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 11:04:16,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 11:04:16,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 11:04:16,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 11:04:16,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 11:04:16,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 11:04:16,200 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 11:04:16,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 11:04:16,200 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 11:04:16,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 11:04:16,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 11:04:16,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 11:04:16,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 11:04:16,471 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 11:04:16,473 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 11:04:16,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-09-01 11:04:17,424 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 11:04:17,632 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 11:04:17,637 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-09-01 11:04:17,644 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948361441/42f86ac0b72848ac923ed765cb4f7165/FLAG7b2c58d30 [2023-09-01 11:04:17,654 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948361441/42f86ac0b72848ac923ed765cb4f7165 [2023-09-01 11:04:17,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 11:04:17,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 11:04:17,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 11:04:17,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 11:04:17,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 11:04:17,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:17,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2e7c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17, skipping insertion in model container [2023-09-01 11:04:17,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:17,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 11:04:17,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 11:04:17,894 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/28-race_reach_46-escape_racefree.i[30176,30189] [2023-09-01 11:04:17,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 11:04:17,918 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 11:04:17,950 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/28-race_reach_46-escape_racefree.i[30176,30189] [2023-09-01 11:04:17,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 11:04:17,991 INFO L208 MainTranslator]: Completed translation [2023-09-01 11:04:17,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17 WrapperNode [2023-09-01 11:04:17,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 11:04:17,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 11:04:17,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 11:04:17,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 11:04:17,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,041 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2023-09-01 11:04:18,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 11:04:18,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 11:04:18,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 11:04:18,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 11:04:18,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,057 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 11:04:18,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 11:04:18,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 11:04:18,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 11:04:18,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (1/1) ... [2023-09-01 11:04:18,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 11:04:18,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 11:04:18,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 11:04:18,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 11:04:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 11:04:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 11:04:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 11:04:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 11:04:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 11:04:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 11:04:18,120 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 11:04:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 11:04:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 11:04:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 11:04:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 11:04:18,122 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 11:04:18,233 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 11:04:18,234 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 11:04:18,375 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 11:04:18,380 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 11:04:18,380 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-09-01 11:04:18,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 11:04:18 BoogieIcfgContainer [2023-09-01 11:04:18,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 11:04:18,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 11:04:18,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 11:04:18,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 11:04:18,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 11:04:17" (1/3) ... [2023-09-01 11:04:18,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b322dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 11:04:18, skipping insertion in model container [2023-09-01 11:04:18,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 11:04:17" (2/3) ... [2023-09-01 11:04:18,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b322dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 11:04:18, skipping insertion in model container [2023-09-01 11:04:18,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 11:04:18" (3/3) ... [2023-09-01 11:04:18,387 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2023-09-01 11:04:18,391 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 11:04:18,397 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 11:04:18,397 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-01 11:04:18,397 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 11:04:18,433 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 11:04:18,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 104 transitions, 216 flow [2023-09-01 11:04:18,489 INFO L130 PetriNetUnfolder]: 9/103 cut-off events. [2023-09-01 11:04:18,489 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 11:04:18,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 9/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2023-09-01 11:04:18,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 104 transitions, 216 flow [2023-09-01 11:04:18,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 94 transitions, 191 flow [2023-09-01 11:04:18,498 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 11:04:18,503 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 94 transitions, 191 flow [2023-09-01 11:04:18,505 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 94 transitions, 191 flow [2023-09-01 11:04:18,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 94 transitions, 191 flow [2023-09-01 11:04:18,528 INFO L130 PetriNetUnfolder]: 9/94 cut-off events. [2023-09-01 11:04:18,529 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 11:04:18,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 9/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 129 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2023-09-01 11:04:18,530 INFO L119 LiptonReduction]: Number of co-enabled transitions 1452 [2023-09-01 11:04:21,020 INFO L134 LiptonReduction]: Checked pairs total: 3001 [2023-09-01 11:04:21,020 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-09-01 11:04:21,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 11:04:21,033 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;@2ba1e53a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 11:04:21,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-09-01 11:04:21,036 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-09-01 11:04:21,036 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 11:04:21,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:04:21,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 11:04:21,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:04:21,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:04:21,045 INFO L85 PathProgramCache]: Analyzing trace with hash 366890863, now seen corresponding path program 1 times [2023-09-01 11:04:21,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:04:21,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533045878] [2023-09-01 11:04:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:04:21,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:04:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 11:04:21,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 11:04:21,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 11:04:21,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533045878] [2023-09-01 11:04:21,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533045878] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 11:04:21,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 11:04:21,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 11:04:21,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922472815] [2023-09-01 11:04:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 11:04:21,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 11:04:21,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 11:04:21,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 11:04:21,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 11:04:21,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 184 [2023-09-01 11:04:21,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 26 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 11:04:21,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 184 [2023-09-01 11:04:21,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 11:04:21,479 INFO L130 PetriNetUnfolder]: 41/125 cut-off events. [2023-09-01 11:04:21,480 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 11:04:21,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 125 events. 41/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 431 event pairs, 13 based on Foata normal form. 5/123 useless extension candidates. Maximal degree in co-relation 226. Up to 62 conditions per place. [2023-09-01 11:04:21,482 INFO L137 encePairwiseOnDemand]: 171/184 looper letters, 13 selfloop transitions, 2 changer transitions 11/27 dead transitions. [2023-09-01 11:04:21,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 27 transitions, 105 flow [2023-09-01 11:04:21,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 11:04:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 11:04:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2023-09-01 11:04:21,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.532608695652174 [2023-09-01 11:04:21,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2023-09-01 11:04:21,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2023-09-01 11:04:21,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 11:04:21,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2023-09-01 11:04:21,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,502 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,503 INFO L175 Difference]: Start difference. First operand has 22 places, 26 transitions, 55 flow. Second operand 3 states and 294 transitions. [2023-09-01 11:04:21,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 27 transitions, 105 flow [2023-09-01 11:04:21,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 27 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 11:04:21,506 INFO L231 Difference]: Finished difference. Result has 24 places, 14 transitions, 40 flow [2023-09-01 11:04:21,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2023-09-01 11:04:21,509 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2023-09-01 11:04:21,509 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 40 flow [2023-09-01 11:04:21,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:04:21,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:04:21,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 11:04:21,510 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:04:21,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:04:21,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2098203577, now seen corresponding path program 1 times [2023-09-01 11:04:21,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:04:21,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405469221] [2023-09-01 11:04:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:04:21,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:04:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 11:04:21,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 11:04:21,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 11:04:21,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405469221] [2023-09-01 11:04:21,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405469221] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 11:04:21,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 11:04:21,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 11:04:21,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636746515] [2023-09-01 11:04:21,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 11:04:21,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 11:04:21,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 11:04:21,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 11:04:21,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 11:04:21,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 184 [2023-09-01 11:04:21,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 11:04:21,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 184 [2023-09-01 11:04:21,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 11:04:21,639 INFO L130 PetriNetUnfolder]: 13/47 cut-off events. [2023-09-01 11:04:21,640 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-09-01 11:04:21,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 47 events. 13/47 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 95 event pairs, 0 based on Foata normal form. 5/52 useless extension candidates. Maximal degree in co-relation 102. Up to 26 conditions per place. [2023-09-01 11:04:21,640 INFO L137 encePairwiseOnDemand]: 179/184 looper letters, 14 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-09-01 11:04:21,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 20 transitions, 94 flow [2023-09-01 11:04:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 11:04:21,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 11:04:21,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2023-09-01 11:04:21,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4945652173913043 [2023-09-01 11:04:21,643 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2023-09-01 11:04:21,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2023-09-01 11:04:21,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 11:04:21,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2023-09-01 11:04:21,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,646 INFO L175 Difference]: Start difference. First operand has 24 places, 14 transitions, 40 flow. Second operand 3 states and 273 transitions. [2023-09-01 11:04:21,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 20 transitions, 94 flow [2023-09-01 11:04:21,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 11:04:21,647 INFO L231 Difference]: Finished difference. Result has 21 places, 16 transitions, 59 flow [2023-09-01 11:04:21,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=21, PETRI_TRANSITIONS=16} [2023-09-01 11:04:21,648 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -1 predicate places. [2023-09-01 11:04:21,648 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 16 transitions, 59 flow [2023-09-01 11:04:21,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:04:21,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:04:21,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 11:04:21,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:04:21,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:04:21,649 INFO L85 PathProgramCache]: Analyzing trace with hash 847096169, now seen corresponding path program 1 times [2023-09-01 11:04:21,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:04:21,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003820793] [2023-09-01 11:04:21,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:04:21,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:04:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 11:04:21,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 11:04:21,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 11:04:21,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003820793] [2023-09-01 11:04:21,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003820793] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 11:04:21,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 11:04:21,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 11:04:21,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898534820] [2023-09-01 11:04:21,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 11:04:21,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 11:04:21,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 11:04:21,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 11:04:21,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 11:04:21,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 184 [2023-09-01 11:04:21,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 16 transitions, 59 flow. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 11:04:21,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 184 [2023-09-01 11:04:21,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 11:04:21,862 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2023-09-01 11:04:21,862 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-09-01 11:04:21,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 16 events. 0/16 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 4/20 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-09-01 11:04:21,862 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 9 selfloop transitions, 4 changer transitions 0/14 dead transitions. [2023-09-01 11:04:21,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 14 transitions, 75 flow [2023-09-01 11:04:21,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 11:04:21,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 11:04:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2023-09-01 11:04:21,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48641304347826086 [2023-09-01 11:04:21,864 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 358 transitions. [2023-09-01 11:04:21,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 358 transitions. [2023-09-01 11:04:21,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 11:04:21,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 358 transitions. [2023-09-01 11:04:21,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,867 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,868 INFO L175 Difference]: Start difference. First operand has 21 places, 16 transitions, 59 flow. Second operand 4 states and 358 transitions. [2023-09-01 11:04:21,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 14 transitions, 75 flow [2023-09-01 11:04:21,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 14 transitions, 63 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-09-01 11:04:21,869 INFO L231 Difference]: Finished difference. Result has 22 places, 14 transitions, 45 flow [2023-09-01 11:04:21,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=45, PETRI_PLACES=22, PETRI_TRANSITIONS=14} [2023-09-01 11:04:21,869 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2023-09-01 11:04:21,869 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 14 transitions, 45 flow [2023-09-01 11:04:21,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:21,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:04:21,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:04:21,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 11:04:21,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:04:21,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:04:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1858962138, now seen corresponding path program 1 times [2023-09-01 11:04:21,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:04:21,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916938512] [2023-09-01 11:04:21,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:04:21,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:04:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 11:04:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 11:04:22,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 11:04:22,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916938512] [2023-09-01 11:04:22,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916938512] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 11:04:22,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 11:04:22,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 11:04:22,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658513789] [2023-09-01 11:04:22,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 11:04:22,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 11:04:22,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 11:04:22,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 11:04:22,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-09-01 11:04:22,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2023-09-01 11:04:22,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 14 transitions, 45 flow. Second operand has 7 states, 7 states have (on average 83.85714285714286) internal successors, (587), 7 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:22,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 11:04:22,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2023-09-01 11:04:22,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 11:04:22,320 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-09-01 11:04:22,320 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 11:04:22,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 15 events. 0/15 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-09-01 11:04:22,321 INFO L137 encePairwiseOnDemand]: 177/184 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2023-09-01 11:04:22,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 15 transitions, 76 flow [2023-09-01 11:04:22,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 11:04:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 11:04:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 671 transitions. [2023-09-01 11:04:22,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45584239130434784 [2023-09-01 11:04:22,325 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 671 transitions. [2023-09-01 11:04:22,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 671 transitions. [2023-09-01 11:04:22,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 11:04:22,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 671 transitions. [2023-09-01 11:04:22,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 83.875) internal successors, (671), 8 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:22,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 184.0) internal successors, (1656), 9 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:22,332 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 184.0) internal successors, (1656), 9 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:22,333 INFO L175 Difference]: Start difference. First operand has 22 places, 14 transitions, 45 flow. Second operand 8 states and 671 transitions. [2023-09-01 11:04:22,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 15 transitions, 76 flow [2023-09-01 11:04:22,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 15 transitions, 65 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 11:04:22,333 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-09-01 11:04:22,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-09-01 11:04:22,334 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2023-09-01 11:04:22,335 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-09-01 11:04:22,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.85714285714286) internal successors, (587), 7 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 11:04:22,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-09-01 11:04:22,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-09-01 11:04:22,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 11:04:22,337 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 11:04:22,341 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 11:04:22,341 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 11:04:22,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 11:04:22 BasicIcfg [2023-09-01 11:04:22,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 11:04:22,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 11:04:22,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 11:04:22,346 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 11:04:22,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 11:04:18" (3/4) ... [2023-09-01 11:04:22,348 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 11:04:22,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 11:04:22,355 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-09-01 11:04:22,356 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 11:04:22,356 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 11:04:22,356 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 11:04:22,384 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 11:04:22,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 11:04:22,385 INFO L158 Benchmark]: Toolchain (without parser) took 4727.88ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 68.6MB in the beginning and 82.9MB in the end (delta: -14.3MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2023-09-01 11:04:22,385 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 11:04:22,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.76ms. Allocated memory is still 90.2MB. Free memory was 68.3MB in the beginning and 48.7MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-09-01 11:04:22,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.48ms. Allocated memory is still 90.2MB. Free memory was 48.7MB in the beginning and 70.1MB in the end (delta: -21.4MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2023-09-01 11:04:22,386 INFO L158 Benchmark]: Boogie Preprocessor took 17.37ms. Allocated memory is still 90.2MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 11:04:22,386 INFO L158 Benchmark]: RCFGBuilder took 321.55ms. Allocated memory is still 90.2MB. Free memory was 68.4MB in the beginning and 53.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 11:04:22,386 INFO L158 Benchmark]: TraceAbstraction took 3962.69ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 53.3MB in the beginning and 86.0MB in the end (delta: -32.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-09-01 11:04:22,386 INFO L158 Benchmark]: Witness Printer took 38.31ms. Allocated memory is still 132.1MB. Free memory was 86.0MB in the beginning and 82.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 11:04:22,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.76ms. Allocated memory is still 90.2MB. Free memory was 68.3MB in the beginning and 48.7MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.48ms. Allocated memory is still 90.2MB. Free memory was 48.7MB in the beginning and 70.1MB in the end (delta: -21.4MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.37ms. Allocated memory is still 90.2MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 321.55ms. Allocated memory is still 90.2MB. Free memory was 68.4MB in the beginning and 53.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3962.69ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 53.3MB in the beginning and 86.0MB in the end (delta: -32.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 38.31ms. Allocated memory is still 132.1MB. Free memory was 86.0MB in the beginning and 82.9MB in the end (delta: 3.1MB). 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: 2.5s, 89 PlacesBefore, 22 PlacesAfterwards, 94 TransitionsBefore, 26 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 80 TotalNumberOfCompositions, 3001 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1396, independent: 1249, independent conditional: 0, independent unconditional: 1249, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 807, independent: 769, independent conditional: 0, independent unconditional: 769, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1396, independent: 480, independent conditional: 0, independent unconditional: 480, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 807, unknown conditional: 0, unknown unconditional: 807] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 691]: 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, 125 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: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 167 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 532 IncrementalHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 0 mSDtfsCounter, 532 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2023-09-01 11:04:22,405 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