./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af4906d6a697bbfac333ed7328e2407ee80be0b9 .................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 09:04:32,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 09:04:32,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 09:04:32,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 09:04:32,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 09:04:32,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 09:04:32,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 09:04:32,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 09:04:32,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 09:04:32,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 09:04:32,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 09:04:32,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 09:04:32,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 09:04:32,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 09:04:32,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 09:04:32,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 09:04:32,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 09:04:32,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 09:04:32,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 09:04:32,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 09:04:32,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 09:04:32,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 09:04:32,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 09:04:32,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 09:04:32,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 09:04:32,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 09:04:32,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 09:04:32,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 09:04:32,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 09:04:32,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 09:04:32,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 09:04:32,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 09:04:32,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 09:04:32,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 09:04:32,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 09:04:32,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 09:04:32,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 09:04:32,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 09:04:32,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 09:04:32,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 09:04:32,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 09:04:32,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 09:04:32,235 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 09:04:32,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 09:04:32,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 09:04:32,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 09:04:32,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 09:04:32,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 09:04:32,239 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 09:04:32,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 09:04:32,239 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 09:04:32,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 09:04:32,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 09:04:32,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 09:04:32,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 09:04:32,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 09:04:32,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 09:04:32,241 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 09:04:32,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 09:04:32,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 09:04:32,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 09:04:32,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 09:04:32,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 09:04:32,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 09:04:32,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 09:04:32,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 09:04:32,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 09:04:32,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 09:04:32,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 09:04:32,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 09:04:32,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 09:04:32,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 09:04:32,243 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/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af4906d6a697bbfac333ed7328e2407ee80be0b9 [2021-08-29 09:04:32,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 09:04:32,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 09:04:32,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 09:04:32,583 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 09:04:32,584 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 09:04:32,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i [2021-08-29 09:04:32,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53cfbbdab/a89cfc2512794215b61bfd1694939f1b/FLAGd3cf9ff19 [2021-08-29 09:04:33,070 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 09:04:33,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i [2021-08-29 09:04:33,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53cfbbdab/a89cfc2512794215b61bfd1694939f1b/FLAGd3cf9ff19 [2021-08-29 09:04:33,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53cfbbdab/a89cfc2512794215b61bfd1694939f1b [2021-08-29 09:04:33,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 09:04:33,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 09:04:33,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 09:04:33,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 09:04:33,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 09:04:33,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c9188b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33, skipping insertion in model container [2021-08-29 09:04:33,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 09:04:33,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 09:04:33,224 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i[297,310] [2021-08-29 09:04:33,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 09:04:33,248 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 09:04:33,257 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i[297,310] [2021-08-29 09:04:33,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 09:04:33,269 INFO L208 MainTranslator]: Completed translation [2021-08-29 09:04:33,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33 WrapperNode [2021-08-29 09:04:33,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 09:04:33,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 09:04:33,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 09:04:33,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 09:04:33,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 09:04:33,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 09:04:33,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 09:04:33,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 09:04:33,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 09:04:33,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 09:04:33,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 09:04:33,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 09:04:33,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (1/1) ... [2021-08-29 09:04:33,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 09:04:33,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 09:04:33,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 09:04:33,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 09:04:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 09:04:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 09:04:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 09:04:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 09:04:33,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 09:04:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 09:04:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 09:04:33,553 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 09:04:33,553 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-29 09:04:33,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:04:33 BoogieIcfgContainer [2021-08-29 09:04:33,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 09:04:33,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 09:04:33,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 09:04:33,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 09:04:33,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:04:33" (1/3) ... [2021-08-29 09:04:33,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3c757e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:04:33, skipping insertion in model container [2021-08-29 09:04:33,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:33" (2/3) ... [2021-08-29 09:04:33,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3c757e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:04:33, skipping insertion in model container [2021-08-29 09:04:33,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:04:33" (3/3) ... [2021-08-29 09:04:33,561 INFO L111 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2021-08-29 09:04:33,570 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 09:04:33,571 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-29 09:04:33,606 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 09:04:33,611 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 [2021-08-29 09:04:33,611 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-29 09:04:33,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 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) [2021-08-29 09:04:33,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-29 09:04:33,625 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 09:04:33,626 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-29 09:04:33,626 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 09:04:33,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 09:04:33,630 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-29 09:04:33,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 09:04:33,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892804939] [2021-08-29 09:04:33,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 09:04:33,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 09:04:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 09:04:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 09:04:33,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 09:04:33,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892804939] [2021-08-29 09:04:33,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892804939] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 09:04:33,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 09:04:33,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 09:04:33,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896834172] [2021-08-29 09:04:33,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 09:04:33,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 09:04:33,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 09:04:33,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 09:04:33,832 INFO L87 Difference]: Start difference. First operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-08-29 09:04:33,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 09:04:33,875 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-08-29 09:04:33,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 09:04:33,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-08-29 09:04:33,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 09:04:33,883 INFO L225 Difference]: With dead ends: 25 [2021-08-29 09:04:33,883 INFO L226 Difference]: Without dead ends: 8 [2021-08-29 09:04:33,885 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 09:04:33,887 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.02ms IncrementalHoareTripleChecker+Time [2021-08-29 09:04:33,888 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 32.02ms Time] [2021-08-29 09:04:33,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-08-29 09:04:33,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-08-29 09:04:33,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2021-08-29 09:04:33,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-08-29 09:04:33,909 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 4 [2021-08-29 09:04:33,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 09:04:33,910 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-08-29 09:04:33,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-08-29 09:04:33,910 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-08-29 09:04:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 09:04:33,911 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 09:04:33,911 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 09:04:33,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 09:04:33,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 09:04:33,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 09:04:33,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1810629644, now seen corresponding path program 1 times [2021-08-29 09:04:33,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 09:04:33,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613126230] [2021-08-29 09:04:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 09:04:33,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 09:04:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 09:04:33,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 09:04:33,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 09:04:33,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613126230] [2021-08-29 09:04:33,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613126230] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 09:04:33,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 09:04:33,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 09:04:33,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709301155] [2021-08-29 09:04:33,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 09:04:33,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 09:04:33,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 09:04:33,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 09:04:33,987 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-08-29 09:04:34,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 09:04:34,027 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-08-29 09:04:34,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 09:04:34,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2021-08-29 09:04:34,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 09:04:34,028 INFO L225 Difference]: With dead ends: 8 [2021-08-29 09:04:34,028 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 09:04:34,028 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.04ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 09:04:34,030 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.25ms IncrementalHoareTripleChecker+Time [2021-08-29 09:04:34,030 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.23ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 18.25ms Time] [2021-08-29 09:04:34,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 09:04:34,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 09:04:34,031 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) [2021-08-29 09:04:34,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 09:04:34,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-08-29 09:04:34,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 09:04:34,032 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 09:04:34,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-08-29 09:04:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 09:04:34,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 09:04:34,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-08-29 09:04:34,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-08-29 09:04:34,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 09:04:34,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 09:04:34,040 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 09:04:34,041 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-08-29 09:04:34,041 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 09:04:34,041 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 42) no Hoare annotation was computed. [2021-08-29 09:04:34,042 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 09:04:34,045 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 09:04:34,045 INFO L858 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-08-29 09:04:34,045 INFO L858 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-08-29 09:04:34,046 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-08-29 09:04:34,046 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 28) no Hoare annotation was computed. [2021-08-29 09:04:34,046 INFO L858 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-08-29 09:04:34,047 INFO L858 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-08-29 09:04:34,048 INFO L858 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-08-29 09:04:34,048 INFO L858 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-08-29 09:04:34,048 INFO L858 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2021-08-29 09:04:34,053 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 09:04:34,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:04:34 BoogieIcfgContainer [2021-08-29 09:04:34,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 09:04:34,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 09:04:34,063 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 09:04:34,063 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 09:04:34,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:04:33" (3/4) ... [2021-08-29 09:04:34,066 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 09:04:34,074 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-29 09:04:34,075 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 09:04:34,075 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-29 09:04:34,075 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 09:04:34,110 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 09:04:34,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 09:04:34,111 INFO L158 Benchmark]: Toolchain (without parser) took 1011.99ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 32.4MB in the end (delta: 17.2MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-08-29 09:04:34,112 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 50.0MB in the end (delta: 32.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 09:04:34,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.30ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 40.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 09:04:34,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.13ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 52.1MB in the end (delta: -11.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 09:04:34,113 INFO L158 Benchmark]: Boogie Preprocessor took 21.12ms. Allocated memory is still 69.2MB. Free memory was 52.1MB in the beginning and 51.2MB in the end (delta: 869.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 09:04:34,113 INFO L158 Benchmark]: RCFGBuilder took 199.26ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 42.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 09:04:34,113 INFO L158 Benchmark]: TraceAbstraction took 505.52ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 35.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-08-29 09:04:34,114 INFO L158 Benchmark]: Witness Printer took 47.40ms. Allocated memory is still 69.2MB. Free memory was 34.9MB in the beginning and 32.4MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 09:04:34,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 50.0MB in the end (delta: 32.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.30ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 40.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.13ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 52.1MB in the end (delta: -11.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.12ms. Allocated memory is still 69.2MB. Free memory was 52.1MB in the beginning and 51.2MB in the end (delta: 869.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 199.26ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 42.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 505.52ms. Allocated memory is still 69.2MB. Free memory was 42.4MB in the beginning and 35.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 47.40ms. Allocated memory is still 69.2MB. Free memory was 34.9MB in the beginning and 32.4MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 16]: 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 CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 448.53ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 6.94ms, AutomataDifference: 123.66ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 3.94ms, InitialAbstractionConstructionTime: 7.37ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 50.27ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 43.39ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 36 mSolverCounterSat, 0.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.48ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 11.12ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.00ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.00ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 6.58ms SsaConstructionTime, 31.23ms SatisfiabilityAnalysisTime, 146.33ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-29 09:04:34,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...