./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/security.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/security.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 5e3c48acf5127d374192e0a6d5f4f766f798ad8f ............................................................................................................................................................................................................................................................................................................................................................ 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 20:31:58,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-05 20:31:58,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-05 20:31:58,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-05 20:31:58,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-05 20:31:58,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-05 20:31:58,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-05 20:31:58,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-05 20:31:58,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-05 20:31:58,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-05 20:31:58,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-05 20:31:58,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-05 20:31:58,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-05 20:31:58,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-05 20:31:58,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-05 20:31:58,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-05 20:31:58,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-05 20:31:58,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-05 20:31:58,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-05 20:31:58,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-05 20:31:58,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-05 20:31:58,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-05 20:31:58,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-05 20:31:58,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-05 20:31:58,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-05 20:31:58,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-05 20:31:58,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-05 20:31:58,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-05 20:31:58,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-05 20:31:58,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-05 20:31:58,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-05 20:31:58,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-05 20:31:58,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-05 20:31:58,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-05 20:31:58,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-05 20:31:58,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-05 20:31:58,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-05 20:31:58,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-05 20:31:58,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-05 20:31:58,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-05 20:31:58,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-05 20:31:58,285 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 20:31:58,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-05 20:31:58,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-05 20:31:58,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-05 20:31:58,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-05 20:31:58,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-05 20:31:58,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-05 20:31:58,337 INFO L138 SettingsManager]: * Use SBE=true [2021-10-05 20:31:58,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-05 20:31:58,338 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-05 20:31:58,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-05 20:31:58,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-05 20:31:58,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-05 20:31:58,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-05 20:31:58,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-05 20:31:58,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-05 20:31:58,340 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-05 20:31:58,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-05 20:31:58,341 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-05 20:31:58,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-05 20:31:58,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-05 20:31:58,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-05 20:31:58,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-05 20:31:58,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 20:31:58,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-05 20:31:58,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-05 20:31:58,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-05 20:31:58,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-05 20:31:58,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-05 20:31:58,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-05 20:31:58,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-05 20:31:58,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e3c48acf5127d374192e0a6d5f4f766f798ad8f [2021-10-05 20:31:58,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-05 20:31:58,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-05 20:31:58,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-05 20:31:58,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-05 20:31:58,837 INFO L275 PluginConnector]: CDTParser initialized [2021-10-05 20:31:58,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/security.wvr.c [2021-10-05 20:31:58,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca8e684ba/9f9781e8570d41578fa0e68e7a7052a7/FLAG9949bd316 [2021-10-05 20:31:59,655 INFO L306 CDTParser]: Found 1 translation units. [2021-10-05 20:31:59,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c [2021-10-05 20:31:59,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca8e684ba/9f9781e8570d41578fa0e68e7a7052a7/FLAG9949bd316 [2021-10-05 20:32:00,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca8e684ba/9f9781e8570d41578fa0e68e7a7052a7 [2021-10-05 20:32:00,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-05 20:32:00,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-05 20:32:00,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-05 20:32:00,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-05 20:32:00,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-05 20:32:00,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408520a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00, skipping insertion in model container [2021-10-05 20:32:00,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-05 20:32:00,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-05 20:32:00,272 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/security.wvr.c[1872,1885] [2021-10-05 20:32:00,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 20:32:00,289 INFO L203 MainTranslator]: Completed pre-run [2021-10-05 20:32:00,334 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/security.wvr.c[1872,1885] [2021-10-05 20:32:00,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 20:32:00,365 INFO L208 MainTranslator]: Completed translation [2021-10-05 20:32:00,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00 WrapperNode [2021-10-05 20:32:00,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-05 20:32:00,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-05 20:32:00,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-05 20:32:00,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-05 20:32:00,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-05 20:32:00,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-05 20:32:00,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-05 20:32:00,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-05 20:32:00,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-05 20:32:00,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-05 20:32:00,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-05 20:32:00,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-05 20:32:00,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (1/1) ... [2021-10-05 20:32:00,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 20:32:00,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 20:32:00,556 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 20:32:00,564 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 20:32:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-05 20:32:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-05 20:32:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-05 20:32:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-05 20:32:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-05 20:32:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-05 20:32:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-05 20:32:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-05 20:32:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-05 20:32:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-05 20:32:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-05 20:32:00,655 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 20:32:01,111 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-05 20:32:01,113 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-05 20:32:01,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 08:32:01 BoogieIcfgContainer [2021-10-05 20:32:01,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-05 20:32:01,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-05 20:32:01,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-05 20:32:01,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-05 20:32:01,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 08:32:00" (1/3) ... [2021-10-05 20:32:01,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544b38f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 08:32:01, skipping insertion in model container [2021-10-05 20:32:01,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 08:32:00" (2/3) ... [2021-10-05 20:32:01,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544b38f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 08:32:01, skipping insertion in model container [2021-10-05 20:32:01,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 08:32:01" (3/3) ... [2021-10-05 20:32:01,129 INFO L111 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2021-10-05 20:32:01,137 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-05 20:32:01,138 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-05 20:32:01,138 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-05 20:32:01,139 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-05 20:32:01,195 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,197 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,198 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,198 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,198 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,199 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,199 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,200 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,201 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,202 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,202 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,203 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,203 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,203 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,204 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,204 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,209 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,210 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,210 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,218 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,220 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 20:32:01,241 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-05 20:32:01,325 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-05 20:32:01,338 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 20:32:01,339 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-05 20:32:01,372 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-05 20:32:01,410 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 71 transitions, 158 flow [2021-10-05 20:32:01,414 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 71 transitions, 158 flow [2021-10-05 20:32:01,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 158 flow [2021-10-05 20:32:01,515 INFO L129 PetriNetUnfolder]: 3/69 cut-off events. [2021-10-05 20:32:01,515 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-05 20:32:01,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 69 events. 3/69 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2021-10-05 20:32:01,524 INFO L116 LiptonReduction]: Number of co-enabled transitions 432 [2021-10-05 20:32:04,400 INFO L131 LiptonReduction]: Checked pairs total: 446 [2021-10-05 20:32:04,401 INFO L133 LiptonReduction]: Total number of compositions: 65 [2021-10-05 20:32:04,412 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 14 transitions, 44 flow [2021-10-05 20:32:04,425 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 20:32:04,428 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 20:32:04,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-05 20:32:04,436 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 20:32:04,437 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 20:32:04,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 20:32:04,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 20:32:04,445 INFO L82 PathProgramCache]: Analyzing trace with hash -753911566, now seen corresponding path program 1 times [2021-10-05 20:32:04,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 20:32:04,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974416229] [2021-10-05 20:32:04,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 20:32:04,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 20:32:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 20:32:04,782 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 20:32:04,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 20:32:04,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974416229] [2021-10-05 20:32:04,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974416229] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 20:32:04,785 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 20:32:04,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 20:32:04,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031769596] [2021-10-05 20:32:04,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 20:32:04,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 20:32:04,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 20:32:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 20:32:04,814 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 20:32:04,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 20:32:04,861 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-10-05 20:32:04,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-05 20:32:04,863 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 20:32:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 20:32:04,873 INFO L225 Difference]: With dead ends: 25 [2021-10-05 20:32:04,873 INFO L226 Difference]: Without dead ends: 14 [2021-10-05 20:32:04,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 20:32:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-05 20:32:04,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-05 20:32:04,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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 20:32:04,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-10-05 20:32:04,911 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2021-10-05 20:32:04,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 20:32:04,912 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-10-05 20:32:04,912 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 20:32:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-10-05 20:32:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-05 20:32:04,914 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 20:32:04,914 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 20:32:04,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-05 20:32:04,915 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 20:32:04,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 20:32:04,916 INFO L82 PathProgramCache]: Analyzing trace with hash 2023350458, now seen corresponding path program 2 times [2021-10-05 20:32:04,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 20:32:04,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948662723] [2021-10-05 20:32:04,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 20:32:04,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 20:32:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 20:32:05,057 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 20:32:05,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 20:32:05,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948662723] [2021-10-05 20:32:05,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948662723] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 20:32:05,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 20:32:05,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 20:32:05,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517891839] [2021-10-05 20:32:05,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 20:32:05,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 20:32:05,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 20:32:05,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 20:32:05,068 INFO L87 Difference]: Start difference. First operand 14 states and 15 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 20:32:05,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 20:32:05,084 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-05 20:32:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-05 20:32:05,085 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 20:32:05,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 20:32:05,085 INFO L225 Difference]: With dead ends: 13 [2021-10-05 20:32:05,085 INFO L226 Difference]: Without dead ends: 0 [2021-10-05 20:32:05,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 20:32:05,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-05 20:32:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-05 20:32:05,087 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 20:32:05,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-05 20:32:05,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-05 20:32:05,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 20:32:05,088 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-05 20:32:05,089 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 20:32:05,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-05 20:32:05,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-05 20:32:05,092 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-05 20:32:05,093 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-05 20:32:05,093 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-05 20:32:05,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-05 20:32:05,098 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-05 20:32:05,099 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-05 20:32:05,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 08:32:05 BasicIcfg [2021-10-05 20:32:05,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-05 20:32:05,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-05 20:32:05,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-05 20:32:05,102 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-05 20:32:05,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 08:32:01" (3/4) ... [2021-10-05 20:32:05,106 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-05 20:32:05,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-05 20:32:05,115 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-05 20:32:05,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-05 20:32:05,120 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-05 20:32:05,120 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-05 20:32:05,120 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-05 20:32:05,165 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-05 20:32:05,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-05 20:32:05,168 INFO L168 Benchmark]: Toolchain (without parser) took 5136.92 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 25.0 MB in the beginning and 26.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-10-05 20:32:05,168 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 48.2 MB. Free memory was 30.1 MB in the beginning and 30.0 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 20:32:05,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.37 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 28.0 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-10-05 20:32:05,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.70 ms. Allocated memory is still 48.2 MB. Free memory was 28.0 MB in the beginning and 26.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 20:32:05,170 INFO L168 Benchmark]: Boogie Preprocessor took 60.87 ms. Allocated memory is still 48.2 MB. Free memory was 26.5 MB in the beginning and 25.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 20:32:05,171 INFO L168 Benchmark]: RCFGBuilder took 620.75 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 28.1 MB in the end (delta: -2.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-05 20:32:05,172 INFO L168 Benchmark]: TraceAbstraction took 3981.19 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 27.6 MB in the beginning and 29.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-05 20:32:05,172 INFO L168 Benchmark]: Witness Printer took 63.80 ms. Allocated memory is still 60.8 MB. Free memory was 29.4 MB in the beginning and 26.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 20:32:05,176 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 48.2 MB. Free memory was 30.1 MB in the beginning and 30.0 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.37 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 28.0 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.70 ms. Allocated memory is still 48.2 MB. Free memory was 28.0 MB in the beginning and 26.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.87 ms. Allocated memory is still 48.2 MB. Free memory was 26.5 MB in the beginning and 25.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 620.75 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 28.1 MB in the end (delta: -2.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3981.19 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 27.6 MB in the beginning and 29.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Witness Printer took 63.80 ms. Allocated memory is still 60.8 MB. Free memory was 29.4 MB in the beginning and 26.4 MB in the end (delta: 3.0 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: 2986.9ms, 75 PlacesBefore, 21 PlacesAfterwards, 71 TransitionsBefore, 14 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 5 FixpointIterations, 35 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 65 TotalNumberOfCompositions, 446 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 446, positive: 446, positive conditional: 0, positive unconditional: 446, 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: 359, positive: 359, positive conditional: 0, positive unconditional: 359, 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: 359, positive: 359, positive conditional: 0, positive unconditional: 359, 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: 446, positive: 87, positive conditional: 0, positive unconditional: 87, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 359, unknown conditional: 0, unknown unconditional: 359] , 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: 72]: 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, 89 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3777.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.3ms, AutomataDifference: 104.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3086.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 20 SDslu, 15 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.4ms 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: 20.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.8ms SsaConstructionTime, 128.2ms SatisfiabilityAnalysisTime, 230.6ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 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 20:32:05,227 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...