./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c --full-output -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 df2c413157f7dcfd335b66c4ab27c85fa9a4115b -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-05 22:17:21,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-05 22:17:21,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-05 22:17:21,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-05 22:17:21,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-05 22:17:21,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-05 22:17:21,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-05 22:17:21,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-05 22:17:21,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-05 22:17:21,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-05 22:17:21,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-05 22:17:21,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-05 22:17:21,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-05 22:17:21,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-05 22:17:21,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-05 22:17:21,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-05 22:17:21,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-05 22:17:21,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-05 22:17:21,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-05 22:17:21,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-05 22:17:21,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-05 22:17:21,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-05 22:17:21,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-05 22:17:21,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-05 22:17:21,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-05 22:17:21,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-05 22:17:21,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-05 22:17:21,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-05 22:17:21,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-05 22:17:21,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-05 22:17:21,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-05 22:17:21,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-05 22:17:21,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-05 22:17:21,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-05 22:17:21,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-05 22:17:21,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-05 22:17:21,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-05 22:17:21,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-05 22:17:21,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-05 22:17:21,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-05 22:17:21,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-05 22:17:21,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-05 22:17:21,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-05 22:17:21,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-05 22:17:21,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-05 22:17:21,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-05 22:17:21,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-05 22:17:21,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-05 22:17:21,335 INFO L138 SettingsManager]: * Use SBE=true [2021-10-05 22:17:21,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-05 22:17:21,336 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-05 22:17:21,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-05 22:17:21,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-05 22:17:21,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-05 22:17:21,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-05 22:17:21,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-05 22:17:21,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-05 22:17:21,339 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-05 22:17:21,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-05 22:17:21,340 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-05 22:17:21,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-05 22:17:21,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-05 22:17:21,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-05 22:17:21,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-05 22:17:21,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:17:21,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-05 22:17:21,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-05 22:17:21,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-05 22:17:21,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-05 22:17:21,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-05 22:17:21,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-05 22:17:21,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-05 22:17:21,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df2c413157f7dcfd335b66c4ab27c85fa9a4115b [2021-10-05 22:17:21,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-05 22:17:21,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-05 22:17:21,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-05 22:17:21,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-05 22:17:21,841 INFO L275 PluginConnector]: CDTParser initialized [2021-10-05 22:17:21,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c [2021-10-05 22:17:21,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dd2f1e7a/43955dfe076c46cb9d8fd4c47d7d9f8b/FLAGd822f5c68 [2021-10-05 22:17:22,584 INFO L306 CDTParser]: Found 1 translation units. [2021-10-05 22:17:22,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c [2021-10-05 22:17:22,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dd2f1e7a/43955dfe076c46cb9d8fd4c47d7d9f8b/FLAGd822f5c68 [2021-10-05 22:17:22,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dd2f1e7a/43955dfe076c46cb9d8fd4c47d7d9f8b [2021-10-05 22:17:22,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-05 22:17:22,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-05 22:17:22,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-05 22:17:22,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-05 22:17:22,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-05 22:17:22,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:17:22" (1/1) ... [2021-10-05 22:17:22,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326747ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:22, skipping insertion in model container [2021-10-05 22:17:22,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:17:22" (1/1) ... [2021-10-05 22:17:22,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-05 22:17:23,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-05 22:17:23,218 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c[2541,2554] [2021-10-05 22:17:23,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:17:23,233 INFO L203 MainTranslator]: Completed pre-run [2021-10-05 22:17:23,259 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c[2541,2554] [2021-10-05 22:17:23,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:17:23,282 INFO L208 MainTranslator]: Completed translation [2021-10-05 22:17:23,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23 WrapperNode [2021-10-05 22:17:23,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-05 22:17:23,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-05 22:17:23,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-05 22:17:23,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-05 22:17:23,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-05 22:17:23,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-05 22:17:23,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-05 22:17:23,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-05 22:17:23,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-05 22:17:23,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-05 22:17:23,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-05 22:17:23,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-05 22:17:23,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (1/1) ... [2021-10-05 22:17:23,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:17:23,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:17:23,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-05 22:17:23,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-05 22:17:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-05 22:17:23,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-05 22:17:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-05 22:17:23,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-05 22:17:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-05 22:17:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-05 22:17:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-05 22:17:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-05 22:17:23,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-05 22:17:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-05 22:17:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-05 22:17:23,475 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-05 22:17:23,950 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-05 22:17:23,951 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-05 22:17:23,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:17:23 BoogieIcfgContainer [2021-10-05 22:17:23,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-05 22:17:23,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-05 22:17:23,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-05 22:17:23,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-05 22:17:23,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:17:22" (1/3) ... [2021-10-05 22:17:23,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6813d5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:17:23, skipping insertion in model container [2021-10-05 22:17:23,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:17:23" (2/3) ... [2021-10-05 22:17:23,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6813d5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:17:23, skipping insertion in model container [2021-10-05 22:17:23,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:17:23" (3/3) ... [2021-10-05 22:17:23,966 INFO L111 eAbstractionObserver]: Analyzing ICFG exp-term-symm.wvr.c [2021-10-05 22:17:23,973 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-05 22:17:23,974 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-05 22:17:23,974 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-05 22:17:23,974 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-05 22:17:24,010 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,011 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,011 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,011 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,012 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,012 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,016 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,016 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,017 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,018 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,019 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,022 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,022 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,022 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,023 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,023 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,023 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,026 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,027 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,027 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,027 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,027 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,028 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,028 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,028 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,028 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,029 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,031 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,032 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,033 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,033 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,034 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,036 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,037 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,038 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,039 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,043 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,059 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,061 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,062 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,063 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,063 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:17:24,083 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-05 22:17:24,175 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-05 22:17:24,187 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-05 22:17:24,188 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-05 22:17:24,227 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-05 22:17:24,249 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 105 transitions, 226 flow [2021-10-05 22:17:24,254 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 105 transitions, 226 flow [2021-10-05 22:17:24,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 105 transitions, 226 flow [2021-10-05 22:17:24,360 INFO L129 PetriNetUnfolder]: 9/103 cut-off events. [2021-10-05 22:17:24,360 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-05 22:17:24,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 103 events. 9/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-10-05 22:17:24,369 INFO L116 LiptonReduction]: Number of co-enabled transitions 1088 [2021-10-05 22:17:28,767 INFO L131 LiptonReduction]: Checked pairs total: 1141 [2021-10-05 22:17:28,767 INFO L133 LiptonReduction]: Total number of compositions: 116 [2021-10-05 22:17:28,777 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 14 transitions, 44 flow [2021-10-05 22:17:28,788 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-10-05 22:17:28,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-10-05 22:17:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-05 22:17:28,798 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:17:28,799 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:17:28,800 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:17:28,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:17:28,806 INFO L82 PathProgramCache]: Analyzing trace with hash -525871972, now seen corresponding path program 1 times [2021-10-05 22:17:28,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:17:28,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735930254] [2021-10-05 22:17:28,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:17:28,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:17:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:17:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:17:29,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:17:29,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735930254] [2021-10-05 22:17:29,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735930254] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:17:29,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:17:29,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:17:29,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363829226] [2021-10-05 22:17:29,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:17:29,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:17:29,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:17:29,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 22:17:29,694 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-05 22:17:29,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:17:29,790 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-10-05 22:17:29,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-05 22:17:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 11 [2021-10-05 22:17:29,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:17:29,805 INFO L225 Difference]: With dead ends: 25 [2021-10-05 22:17:29,805 INFO L226 Difference]: Without dead ends: 18 [2021-10-05 22:17:29,807 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 163.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:17:29,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-05 22:17:29,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-05 22:17:29,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 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) [2021-10-05 22:17:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-05 22:17:29,842 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 11 [2021-10-05 22:17:29,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:17:29,843 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-05 22:17:29,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-05 22:17:29,843 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2021-10-05 22:17:29,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-05 22:17:29,844 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:17:29,844 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:17:29,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-05 22:17:29,845 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:17:29,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:17:29,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1191877088, now seen corresponding path program 2 times [2021-10-05 22:17:29,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:17:29,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916732412] [2021-10-05 22:17:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:17:29,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:17:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:17:30,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:17:30,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:17:30,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916732412] [2021-10-05 22:17:30,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916732412] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:17:30,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:17:30,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:17:30,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427457119] [2021-10-05 22:17:30,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:17:30,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:17:30,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:17:30,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 22:17:30,223 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-05 22:17:30,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:17:30,325 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2021-10-05 22:17:30,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-05 22:17:30,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 11 [2021-10-05 22:17:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:17:30,326 INFO L225 Difference]: With dead ends: 17 [2021-10-05 22:17:30,326 INFO L226 Difference]: Without dead ends: 0 [2021-10-05 22:17:30,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 155.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:17:30,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-05 22:17:30,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-05 22:17:30,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-05 22:17:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-05 22:17:30,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-05 22:17:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:17:30,329 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-05 22:17:30,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-05 22:17:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-05 22:17:30,329 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-05 22:17:30,333 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-05 22:17:30,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-05 22:17:30,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-05 22:17:30,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-05 22:17:30,339 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-05 22:17:30,339 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-05 22:17:30,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:17:30 BasicIcfg [2021-10-05 22:17:30,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-05 22:17:30,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-05 22:17:30,343 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-05 22:17:30,343 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-05 22:17:30,344 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:17:23" (3/4) ... [2021-10-05 22:17:30,347 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-05 22:17:30,357 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-05 22:17:30,358 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-05 22:17:30,363 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-05 22:17:30,364 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-05 22:17:30,364 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-05 22:17:30,364 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-05 22:17:30,413 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-05 22:17:30,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-05 22:17:30,416 INFO L168 Benchmark]: Toolchain (without parser) took 7454.62 ms. Allocated memory was 46.1 MB in the beginning and 92.3 MB in the end (delta: 46.1 MB). Free memory was 22.7 MB in the beginning and 68.0 MB in the end (delta: -45.3 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:30,416 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 46.1 MB. Free memory is still 27.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:17:30,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.73 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.5 MB in the beginning and 38.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:30,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.51 ms. Allocated memory is still 60.8 MB. Free memory was 38.1 MB in the beginning and 36.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:17:30,418 INFO L168 Benchmark]: Boogie Preprocessor took 26.97 ms. Allocated memory is still 60.8 MB. Free memory was 36.6 MB in the beginning and 35.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:30,419 INFO L168 Benchmark]: RCFGBuilder took 598.86 ms. Allocated memory is still 60.8 MB. Free memory was 35.3 MB in the beginning and 38.1 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:30,420 INFO L168 Benchmark]: TraceAbstraction took 6385.74 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 37.6 MB in the beginning and 71.3 MB in the end (delta: -33.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:17:30,420 INFO L168 Benchmark]: Witness Printer took 70.89 ms. Allocated memory is still 92.3 MB. Free memory was 71.0 MB in the beginning and 68.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:17:30,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 46.1 MB. Free memory is still 27.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.73 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.5 MB in the beginning and 38.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.51 ms. Allocated memory is still 60.8 MB. Free memory was 38.1 MB in the beginning and 36.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.97 ms. Allocated memory is still 60.8 MB. Free memory was 36.6 MB in the beginning and 35.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 598.86 ms. Allocated memory is still 60.8 MB. Free memory was 35.3 MB in the beginning and 38.1 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6385.74 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 37.6 MB in the beginning and 71.3 MB in the end (delta: -33.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 70.89 ms. Allocated memory is still 92.3 MB. Free memory was 71.0 MB in the beginning and 68.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4513.4ms, 103 PlacesBefore, 21 PlacesAfterwards, 105 TransitionsBefore, 14 TransitionsAfterwards, 1088 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 17 ConcurrentYvCompositions, 9 ChoiceCompositions, 116 TotalNumberOfCompositions, 1141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1141, positive: 1141, positive conditional: 0, positive unconditional: 1141, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 889, positive: 889, positive conditional: 0, positive unconditional: 889, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 889, positive: 889, positive conditional: 0, positive unconditional: 889, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1141, positive: 252, positive conditional: 0, positive unconditional: 252, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 889, unknown conditional: 0, unknown unconditional: 889] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 66]: 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 5 procedures, 129 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6166.3ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.5ms, AutomataDifference: 235.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4600.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 22 SDslu, 23 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 318.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.5ms SsaConstructionTime, 200.7ms SatisfiabilityAnalysisTime, 930.9ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 553 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-10-05 22:17:30,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...