./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --full-output --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/popl20-more-min-le-max.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 43a69816e0bae6b10c301fc0198194419731fb50 .............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 15:04:01,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 15:04:01,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 15:04:01,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-08 15:04:01,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-08 15:04:01,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-08 15:04:01,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-08 15:04:01,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-08 15:04:01,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-08 15:04:01,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-08 15:04:01,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-08 15:04:01,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-08 15:04:01,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-08 15:04:01,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-08 15:04:01,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-08 15:04:01,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-08 15:04:01,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-08 15:04:01,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-08 15:04:01,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-08 15:04:01,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-08 15:04:01,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-08 15:04:01,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-08 15:04:01,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-08 15:04:01,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-08 15:04:01,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-08 15:04:01,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-08 15:04:01,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-08 15:04:01,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-08 15:04:01,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-08 15:04:01,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-08 15:04:01,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-08 15:04:01,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-08 15:04:01,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-08 15:04:01,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-08 15:04:01,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-08 15:04:01,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-08 15:04:01,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-08 15:04:01,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-08 15:04:01,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 15:04:01,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 15:04:01,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 15:04:01,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-08 15:04:01,438 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 15:04:01,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 15:04:01,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 15:04:01,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 15:04:01,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 15:04:01,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 15:04:01,441 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 15:04:01,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 15:04:01,442 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 15:04:01,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 15:04:01,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 15:04:01,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 15:04:01,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 15:04:01,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 15:04:01,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 15:04:01,443 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 15:04:01,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 15:04:01,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 15:04:01,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 15:04:01,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 15:04:01,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 15:04:01,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 15:04:01,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:04:01,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 15:04:01,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 15:04:01,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 15:04:01,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 15:04:01,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 15:04:01,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 15:04:01,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 15:04:01,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43a69816e0bae6b10c301fc0198194419731fb50 [2021-10-08 15:04:01,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 15:04:01,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 15:04:01,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 15:04:01,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 15:04:01,857 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 15:04:01,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2021-10-08 15:04:01,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bf9470ba/99f812d4e69b428eb2e294de13cccd09/FLAG45cc8272e [2021-10-08 15:04:02,599 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 15:04:02,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2021-10-08 15:04:02,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bf9470ba/99f812d4e69b428eb2e294de13cccd09/FLAG45cc8272e [2021-10-08 15:04:02,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bf9470ba/99f812d4e69b428eb2e294de13cccd09 [2021-10-08 15:04:02,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 15:04:02,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 15:04:02,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 15:04:02,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 15:04:03,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 15:04:03,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:04:02" (1/1) ... [2021-10-08 15:04:03,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea1d563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03, skipping insertion in model container [2021-10-08 15:04:03,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:04:02" (1/1) ... [2021-10-08 15:04:03,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 15:04:03,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 15:04:03,247 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/popl20-more-min-le-max.wvr.c[2418,2431] [2021-10-08 15:04:03,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:04:03,267 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 15:04:03,297 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/popl20-more-min-le-max.wvr.c[2418,2431] [2021-10-08 15:04:03,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:04:03,328 INFO L208 MainTranslator]: Completed translation [2021-10-08 15:04:03,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03 WrapperNode [2021-10-08 15:04:03,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 15:04:03,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 15:04:03,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 15:04:03,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 15:04:03,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 15:04:03,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 15:04:03,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 15:04:03,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 15:04:03,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 15:04:03,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 15:04:03,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 15:04:03,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 15:04:03,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (1/1) ... [2021-10-08 15:04:03,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:04:03,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:04:03,466 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) [2021-10-08 15:04:03,488 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 [2021-10-08 15:04:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 15:04:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 15:04:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 15:04:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 15:04:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 15:04:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 15:04:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 15:04:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 15:04:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 15:04:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-08 15:04:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-08 15:04:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-08 15:04:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 15:04:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 15:04:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 15:04:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 15:04:03,548 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 15:04:04,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 15:04:04,029 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-08 15:04:04,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:04:04 BoogieIcfgContainer [2021-10-08 15:04:04,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 15:04:04,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 15:04:04,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 15:04:04,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 15:04:04,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 03:04:02" (1/3) ... [2021-10-08 15:04:04,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20294250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:04:04, skipping insertion in model container [2021-10-08 15:04:04,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:04:03" (2/3) ... [2021-10-08 15:04:04,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20294250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:04:04, skipping insertion in model container [2021-10-08 15:04:04,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:04:04" (3/3) ... [2021-10-08 15:04:04,041 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2021-10-08 15:04:04,048 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 15:04:04,048 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 15:04:04,048 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-08 15:04:04,048 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 15:04:04,088 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,088 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,089 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,089 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,089 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,089 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,090 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,090 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,090 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,090 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,091 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,092 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,092 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,093 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,093 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,094 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,095 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,095 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,095 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,096 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,096 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,096 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,096 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,096 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,097 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,097 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,097 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,097 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,098 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,099 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,099 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,100 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,100 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,100 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,100 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,100 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,101 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,102 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,102 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,102 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,126 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,126 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,127 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,127 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,127 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,127 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,130 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,130 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,132 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,132 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,133 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,133 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,133 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,133 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:04:04,146 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 15:04:04,205 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 15:04:04,214 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 [2021-10-08 15:04:04,214 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-08 15:04:04,234 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 15:04:04,247 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 135 transitions, 294 flow [2021-10-08 15:04:04,251 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 135 transitions, 294 flow [2021-10-08 15:04:04,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 135 transitions, 294 flow [2021-10-08 15:04:04,325 INFO L129 PetriNetUnfolder]: 10/132 cut-off events. [2021-10-08 15:04:04,326 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 15:04:04,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 10/132 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2021-10-08 15:04:04,334 INFO L116 LiptonReduction]: Number of co-enabled transitions 914 [2021-10-08 15:04:10,096 INFO L131 LiptonReduction]: Checked pairs total: 1235 [2021-10-08 15:04:10,096 INFO L133 LiptonReduction]: Total number of compositions: 129 [2021-10-08 15:04:10,111 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 26 transitions, 76 flow [2021-10-08 15:04:10,130 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 81 states, 80 states have (on average 2.7) internal successors, (216), 80 states have internal predecessors, (216), 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) [2021-10-08 15:04:10,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 80 states have (on average 2.7) internal successors, (216), 80 states have internal predecessors, (216), 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) [2021-10-08 15:04:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 15:04:10,142 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:04:10,143 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 15:04:10,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-08 15:04:10,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:04:10,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1789230325, now seen corresponding path program 1 times [2021-10-08 15:04:10,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:04:10,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940275694] [2021-10-08 15:04:10,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:04:10,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:04:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:04:10,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:04:10,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:04:10,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940275694] [2021-10-08 15:04:10,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940275694] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:04:10,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:04:10,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-08 15:04:10,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689048671] [2021-10-08 15:04:10,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 15:04:10,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:04:10,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 15:04:10,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 15:04:10,644 INFO L87 Difference]: Start difference. First operand has 81 states, 80 states have (on average 2.7) internal successors, (216), 80 states have internal predecessors, (216), 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 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2021-10-08 15:04:10,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:04:10,702 INFO L93 Difference]: Finished difference Result 80 states and 215 transitions. [2021-10-08 15:04:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 15:04:10,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2021-10-08 15:04:10,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:04:10,711 INFO L225 Difference]: With dead ends: 80 [2021-10-08 15:04:10,712 INFO L226 Difference]: Without dead ends: 0 [2021-10-08 15:04:10,713 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:04:10,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-08 15:04:10,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-08 15:04:10,739 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) [2021-10-08 15:04:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-08 15:04:10,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-10-08 15:04:10,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:04:10,741 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-08 15:04:10,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2021-10-08 15:04:10,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-08 15:04:10,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-08 15:04:10,745 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-08 15:04:10,746 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 15:04:10,746 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 15:04:10,746 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 15:04:10,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 15:04:10,751 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 15:04:10,752 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 15:04:10,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 03:04:10 BasicIcfg [2021-10-08 15:04:10,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 15:04:10,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-08 15:04:10,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-08 15:04:10,755 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-08 15:04:10,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:04:04" (3/4) ... [2021-10-08 15:04:10,760 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-08 15:04:10,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-08 15:04:10,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-08 15:04:10,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-08 15:04:10,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-08 15:04:10,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-08 15:04:10,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 15:04:10,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 15:04:10,837 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-08 15:04:10,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-08 15:04:10,840 INFO L168 Benchmark]: Toolchain (without parser) took 7859.56 ms. Allocated memory was 58.7 MB in the beginning and 113.2 MB in the end (delta: 54.5 MB). Free memory was 34.8 MB in the beginning and 91.2 MB in the end (delta: -56.4 MB). Peak memory consumption was 50.7 MB. Max. memory is 16.1 GB. [2021-10-08 15:04:10,840 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory was 25.0 MB in the beginning and 24.9 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-08 15:04:10,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.33 ms. Allocated memory is still 58.7 MB. Free memory was 34.3 MB in the beginning and 36.9 MB in the end (delta: -2.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-08 15:04:10,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.09 ms. Allocated memory is still 58.7 MB. Free memory was 36.9 MB in the beginning and 35.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-08 15:04:10,843 INFO L168 Benchmark]: Boogie Preprocessor took 33.62 ms. Allocated memory is still 58.7 MB. Free memory was 35.1 MB in the beginning and 33.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-08 15:04:10,843 INFO L168 Benchmark]: RCFGBuilder took 617.27 ms. Allocated memory is still 58.7 MB. Free memory was 33.6 MB in the beginning and 31.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-08 15:04:10,844 INFO L168 Benchmark]: TraceAbstraction took 6720.42 ms. Allocated memory was 58.7 MB in the beginning and 94.4 MB in the end (delta: 35.7 MB). Free memory was 30.7 MB in the beginning and 25.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-08 15:04:10,845 INFO L168 Benchmark]: Witness Printer took 82.73 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 25.0 MB in the beginning and 91.2 MB in the end (delta: -66.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-08 15:04:10,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory was 25.0 MB in the beginning and 24.9 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.33 ms. Allocated memory is still 58.7 MB. Free memory was 34.3 MB in the beginning and 36.9 MB in the end (delta: -2.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.09 ms. Allocated memory is still 58.7 MB. Free memory was 36.9 MB in the beginning and 35.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.62 ms. Allocated memory is still 58.7 MB. Free memory was 35.1 MB in the beginning and 33.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 617.27 ms. Allocated memory is still 58.7 MB. Free memory was 33.6 MB in the beginning and 31.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6720.42 ms. Allocated memory was 58.7 MB in the beginning and 94.4 MB in the end (delta: 35.7 MB). Free memory was 30.7 MB in the beginning and 25.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * Witness Printer took 82.73 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 25.0 MB in the beginning and 91.2 MB in the end (delta: -66.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5845.9ms, 135 PlacesBefore, 33 PlacesAfterwards, 135 TransitionsBefore, 26 TransitionsAfterwards, 914 CoEnabledTransitionPairs, 7 FixpointIterations, 78 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 4 ConcurrentYvCompositions, 7 ChoiceCompositions, 129 TotalNumberOfCompositions, 1235 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1088, positive: 1049, positive conditional: 0, positive unconditional: 1049, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 634, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 634, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1088, positive: 428, positive conditional: 0, positive unconditional: 428, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 634, unknown conditional: 0, unknown unconditional: 634] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - 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: 96]: 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 7 procedures, 151 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6547.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 12.0ms, AutomataDifference: 89.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5916.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 8 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.8ms SsaConstructionTime, 149.9ms SatisfiabilityAnalysisTime, 209.4ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2021-10-08 15:04:10,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...