./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/mutex_lock_struct.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_struct.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 8694f441d1171d1c23eab45976b4da66501cd11f .................................................................................................................................................................................................................................................................................................................................. 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 09:04:40,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 09:04:40,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 09:04:40,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 09:04:40,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 09:04:40,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 09:04:40,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 09:04:40,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 09:04:40,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 09:04:40,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 09:04:40,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 09:04:40,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 09:04:40,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 09:04:40,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 09:04:40,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 09:04:40,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 09:04:40,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 09:04:40,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 09:04:40,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 09:04:40,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 09:04:40,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 09:04:40,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 09:04:40,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 09:04:40,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 09:04:40,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 09:04:40,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 09:04:40,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 09:04:40,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 09:04:40,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 09:04:40,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 09:04:40,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 09:04:40,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 09:04:40,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 09:04:40,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 09:04:40,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 09:04:40,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 09:04:40,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 09:04:40,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 09:04:40,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 09:04:40,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 09:04:40,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 09:04:40,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 09:04:40,808 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 09:04:40,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 09:04:40,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 09:04:40,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 09:04:40,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 09:04:40,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 09:04:40,810 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 09:04:40,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 09:04:40,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 09:04:40,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 09:04:40,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 09:04:40,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 09:04:40,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 09:04:40,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 09:04:40,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 09:04:40,817 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 09:04:40,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 09:04:40,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 09:04:40,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 09:04:40,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 09:04:40,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 09:04:40,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 09:04:40,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 09:04:40,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 09:04:40,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 09:04:40,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 09:04:40,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 09:04:40,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 09:04:40,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 09:04:40,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 09:04:40,820 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8694f441d1171d1c23eab45976b4da66501cd11f [2021-08-29 09:04:41,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 09:04:41,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 09:04:41,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 09:04:41,166 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 09:04:41,167 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 09:04:41,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/mutex_lock_struct.c_1.i [2021-08-29 09:04:41,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f8668c2/81c61c25428749cd96488fb6b173a6e1/FLAG1cbf410f8 [2021-08-29 09:04:41,636 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 09:04:41,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/mutex_lock_struct.c_1.i [2021-08-29 09:04:41,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f8668c2/81c61c25428749cd96488fb6b173a6e1/FLAG1cbf410f8 [2021-08-29 09:04:42,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f8668c2/81c61c25428749cd96488fb6b173a6e1 [2021-08-29 09:04:42,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 09:04:42,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 09:04:42,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 09:04:42,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 09:04:42,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 09:04:42,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b77f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42, skipping insertion in model container [2021-08-29 09:04:42,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 09:04:42,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 09:04:42,166 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_struct.c_1.i[299,312] [2021-08-29 09:04:42,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 09:04:42,190 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 09:04:42,199 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_struct.c_1.i[299,312] [2021-08-29 09:04:42,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 09:04:42,212 INFO L208 MainTranslator]: Completed translation [2021-08-29 09:04:42,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42 WrapperNode [2021-08-29 09:04:42,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 09:04:42,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 09:04:42,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 09:04:42,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 09:04:42,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 09:04:42,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 09:04:42,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 09:04:42,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 09:04:42,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 09:04:42,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 09:04:42,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 09:04:42,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 09:04:42,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (1/1) ... [2021-08-29 09:04:42,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 09:04:42,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 09:04:42,282 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 09:04:42,293 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 09:04:42,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 09:04:42,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 09:04:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 09:04:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 09:04:42,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 09:04:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 09:04:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 09:04:42,466 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 09:04:42,466 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-29 09:04:42,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:04:42 BoogieIcfgContainer [2021-08-29 09:04:42,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 09:04:42,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 09:04:42,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 09:04:42,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 09:04:42,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:04:42" (1/3) ... [2021-08-29 09:04:42,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c17deb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:04:42, skipping insertion in model container [2021-08-29 09:04:42,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:04:42" (2/3) ... [2021-08-29 09:04:42,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c17deb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:04:42, skipping insertion in model container [2021-08-29 09:04:42,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:04:42" (3/3) ... [2021-08-29 09:04:42,475 INFO L111 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2021-08-29 09:04:42,480 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 09:04:42,481 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-29 09:04:42,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 09:04:42,534 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 09:04:42,535 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-29 09:04:42,547 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 09:04:42,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-29 09:04:42,551 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 09:04:42,551 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-29 09:04:42,552 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 09:04:42,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 09:04:42,557 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-29 09:04:42,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 09:04:42,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036003069] [2021-08-29 09:04:42,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 09:04:42,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 09:04:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 09:04:42,761 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 09:04:42,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 09:04:42,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036003069] [2021-08-29 09:04:42,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036003069] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 09:04:42,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 09:04:42,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 09:04:42,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490390402] [2021-08-29 09:04:42,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 09:04:42,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 09:04:42,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 09:04:42,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 09:04:42,791 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 09:04:42,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 09:04:42,840 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-08-29 09:04:42,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 09:04:42,842 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 09:04:42,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 09:04:42,847 INFO L225 Difference]: With dead ends: 25 [2021-08-29 09:04:42,852 INFO L226 Difference]: Without dead ends: 8 [2021-08-29 09:04:42,854 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 09:04:42,866 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.01ms 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, 37.90ms IncrementalHoareTripleChecker+Time [2021-08-29 09:04:42,867 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 37.90ms Time] [2021-08-29 09:04:42,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-08-29 09:04:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-08-29 09:04:42,914 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 09:04:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-08-29 09:04:42,915 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 4 [2021-08-29 09:04:42,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 09:04:42,915 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-08-29 09:04:42,916 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 09:04:42,916 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-08-29 09:04:42,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 09:04:42,916 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 09:04:42,916 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 09:04:42,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 09:04:42,917 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 09:04:42,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 09:04:42,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1810629644, now seen corresponding path program 1 times [2021-08-29 09:04:42,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 09:04:42,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213697409] [2021-08-29 09:04:42,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 09:04:42,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 09:04:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 09:04:42,985 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 09:04:42,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 09:04:42,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213697409] [2021-08-29 09:04:42,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213697409] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 09:04:42,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 09:04:42,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 09:04:42,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554267341] [2021-08-29 09:04:42,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 09:04:42,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 09:04:42,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 09:04:42,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 09:04:42,989 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 09:04:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 09:04:43,021 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-08-29 09:04:43,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 09:04:43,022 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 09:04:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 09:04:43,022 INFO L225 Difference]: With dead ends: 8 [2021-08-29 09:04:43,022 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 09:04:43,023 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.36ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 09:04:43,024 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.30ms IncrementalHoareTripleChecker+Time [2021-08-29 09:04:43,024 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.20ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 12.30ms Time] [2021-08-29 09:04:43,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 09:04:43,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 09:04:43,025 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 09:04:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 09:04:43,026 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-08-29 09:04:43,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 09:04:43,026 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 09:04:43,026 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 09:04:43,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 09:04:43,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 09:04:43,029 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-08-29 09:04:43,029 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-08-29 09:04:43,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 09:04:43,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 09:04:43,034 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 45) no Hoare annotation was computed. [2021-08-29 09:04:43,034 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 09:04:43,034 INFO L858 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-08-29 09:04:43,034 INFO L858 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-08-29 09:04:43,034 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-08-29 09:04:43,035 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-08-29 09:04:43,035 INFO L858 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-08-29 09:04:43,035 INFO L858 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-08-29 09:04:43,035 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-08-29 09:04:43,035 INFO L858 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-08-29 09:04:43,035 INFO L858 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-08-29 09:04:43,036 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 09:04:43,036 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 09:04:43,036 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 09:04:43,036 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-08-29 09:04:43,039 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 09:04:43,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:04:43 BoogieIcfgContainer [2021-08-29 09:04:43,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 09:04:43,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 09:04:43,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 09:04:43,044 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 09:04:43,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:04:42" (3/4) ... [2021-08-29 09:04:43,046 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 09:04:43,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-29 09:04:43,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 09:04:43,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-29 09:04:43,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 09:04:43,077 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 09:04:43,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 09:04:43,078 INFO L158 Benchmark]: Toolchain (without parser) took 1029.16ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 32.9MB in the end (delta: 10.7MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-08-29 09:04:43,078 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 44.7MB in the end (delta: 49.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 09:04:43,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.52ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 34.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 09:04:43,079 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.75ms. Allocated memory is still 62.9MB. Free memory was 34.1MB in the beginning and 32.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 09:04:43,079 INFO L158 Benchmark]: Boogie Preprocessor took 14.62ms. Allocated memory is still 62.9MB. Free memory was 32.6MB in the beginning and 31.6MB in the end (delta: 993.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 09:04:43,080 INFO L158 Benchmark]: RCFGBuilder took 212.17ms. Allocated memory is still 62.9MB. Free memory was 31.5MB in the beginning and 40.5MB in the end (delta: -9.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-08-29 09:04:43,080 INFO L158 Benchmark]: TraceAbstraction took 573.64ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 35.4MB in the end (delta: 4.6MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2021-08-29 09:04:43,080 INFO L158 Benchmark]: Witness Printer took 33.90ms. Allocated memory is still 62.9MB. Free memory was 35.4MB in the beginning and 32.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 09:04:43,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 44.7MB in the end (delta: 49.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.52ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 34.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.75ms. Allocated memory is still 62.9MB. Free memory was 34.1MB in the beginning and 32.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.62ms. Allocated memory is still 62.9MB. Free memory was 32.6MB in the beginning and 31.6MB in the end (delta: 993.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 212.17ms. Allocated memory is still 62.9MB. Free memory was 31.5MB in the beginning and 40.5MB in the end (delta: -9.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * TraceAbstraction took 573.64ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 35.4MB in the end (delta: 4.6MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Witness Printer took 33.90ms. Allocated memory is still 62.9MB. Free memory was 35.4MB in the beginning and 32.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. 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: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 15]: 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: 515.47ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.24ms, AutomataDifference: 136.53ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 3.44ms, InitialAbstractionConstructionTime: 9.21ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 50.20ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 43.15ms 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, 0.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.65ms 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: 27.46ms 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: 9.81ms SsaConstructionTime, 44.56ms SatisfiabilityAnalysisTime, 149.68ms 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 09:04:43,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...