./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 20ed64ec 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-dev-20ed64e [2021-08-26 02:09:28,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 02:09:28,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 02:09:28,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 02:09:28,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 02:09:28,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 02:09:28,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 02:09:28,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 02:09:28,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 02:09:28,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 02:09:28,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 02:09:28,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 02:09:28,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 02:09:28,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 02:09:28,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 02:09:28,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 02:09:28,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 02:09:28,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 02:09:28,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 02:09:28,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 02:09:28,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 02:09:28,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 02:09:28,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 02:09:28,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 02:09:28,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 02:09:28,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 02:09:28,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 02:09:28,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 02:09:28,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 02:09:28,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 02:09:28,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 02:09:28,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 02:09:28,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 02:09:28,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 02:09:28,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 02:09:28,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 02:09:28,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 02:09:28,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 02:09:28,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 02:09:28,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 02:09:28,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 02:09:28,766 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 02:09:28,794 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 02:09:28,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 02:09:28,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 02:09:28,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 02:09:28,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 02:09:28,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 02:09:28,798 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 02:09:28,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 02:09:28,798 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 02:09:28,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 02:09:28,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 02:09:28,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 02:09:28,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 02:09:28,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 02:09:28,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 02:09:28,800 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 02:09:28,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 02:09:28,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 02:09:28,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 02:09:28,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 02:09:28,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 02:09:28,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 02:09:28,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 02:09:28,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 02:09:28,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 02:09:28,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 02:09:28,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 02:09:28,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 02:09:28,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 02:09:28,802 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 02:09:28,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af4906d6a697bbfac333ed7328e2407ee80be0b9 [2021-08-26 02:09:29,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 02:09:29,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 02:09:29,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 02:09:29,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 02:09:29,148 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 02:09:29,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i [2021-08-26 02:09:29,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb117faee/3430514af0d547f4ac765c7053a2b61a/FLAG0f562b23b [2021-08-26 02:09:29,618 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 02:09:29,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i [2021-08-26 02:09:29,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb117faee/3430514af0d547f4ac765c7053a2b61a/FLAG0f562b23b [2021-08-26 02:09:29,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb117faee/3430514af0d547f4ac765c7053a2b61a [2021-08-26 02:09:29,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 02:09:29,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 02:09:29,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 02:09:29,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 02:09:29,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 02:09:29,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed9c63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29, skipping insertion in model container [2021-08-26 02:09:29,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 02:09:29,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 02:09:29,768 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] [2021-08-26 02:09:29,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 02:09:29,796 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 02:09:29,805 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] [2021-08-26 02:09:29,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 02:09:29,817 INFO L208 MainTranslator]: Completed translation [2021-08-26 02:09:29,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29 WrapperNode [2021-08-26 02:09:29,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 02:09:29,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 02:09:29,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 02:09:29,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 02:09:29,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 02:09:29,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 02:09:29,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 02:09:29,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 02:09:29,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 02:09:29,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 02:09:29,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 02:09:29,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 02:09:29,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (1/1) ... [2021-08-26 02:09:29,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 02:09:29,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 02:09:29,913 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) [2021-08-26 02:09:29,933 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 [2021-08-26 02:09:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 02:09:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 02:09:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 02:09:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 02:09:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 02:09:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 02:09:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 02:09:30,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 02:09:30,149 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-26 02:09:30,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:09:30 BoogieIcfgContainer [2021-08-26 02:09:30,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 02:09:30,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 02:09:30,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 02:09:30,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 02:09:30,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 02:09:29" (1/3) ... [2021-08-26 02:09:30,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5681be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:09:30, skipping insertion in model container [2021-08-26 02:09:30,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:09:29" (2/3) ... [2021-08-26 02:09:30,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5681be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:09:30, skipping insertion in model container [2021-08-26 02:09:30,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:09:30" (3/3) ... [2021-08-26 02:09:30,164 INFO L111 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2021-08-26 02:09:30,168 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 02:09:30,169 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-26 02:09:30,227 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 02:09:30,234 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 [2021-08-26 02:09:30,234 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-26 02:09:30,245 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) [2021-08-26 02:09:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-26 02:09:30,249 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:09:30,249 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-26 02:09:30,250 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 02:09:30,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:09:30,254 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-26 02:09:30,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:09:30,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847249416] [2021-08-26 02:09:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:09:30,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:09:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:09:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 02:09:30,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:09:30,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847249416] [2021-08-26 02:09:30,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847249416] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 02:09:30,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 02:09:30,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 02:09:30,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395055940] [2021-08-26 02:09:30,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 02:09:30,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:09:30,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 02:09:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 02:09:30,460 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) [2021-08-26 02:09:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:09:30,484 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-08-26 02:09:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 02:09:30,486 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 [2021-08-26 02:09:30,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:09:30,491 INFO L225 Difference]: With dead ends: 25 [2021-08-26 02:09:30,503 INFO L226 Difference]: Without dead ends: 8 [2021-08-26 02:09:30,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 02:09:30,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-08-26 02:09:30,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-08-26 02:09:30,538 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) [2021-08-26 02:09:30,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-08-26 02:09:30,540 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 4 [2021-08-26 02:09:30,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:09:30,541 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-08-26 02:09:30,541 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) [2021-08-26 02:09:30,541 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-08-26 02:09:30,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-26 02:09:30,542 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 02:09:30,542 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-26 02:09:30,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 02:09:30,543 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 02:09:30,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 02:09:30,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1810629644, now seen corresponding path program 1 times [2021-08-26 02:09:30,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 02:09:30,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098683346] [2021-08-26 02:09:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 02:09:30,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 02:09:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 02:09:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 02:09:30,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 02:09:30,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098683346] [2021-08-26 02:09:30,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098683346] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 02:09:30,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 02:09:30,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 02:09:30,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188726701] [2021-08-26 02:09:30,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 02:09:30,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 02:09:30,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 02:09:30,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 02:09:30,661 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) [2021-08-26 02:09:30,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 02:09:30,703 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-08-26 02:09:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 02:09:30,704 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 [2021-08-26 02:09:30,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 02:09:30,704 INFO L225 Difference]: With dead ends: 8 [2021-08-26 02:09:30,704 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 02:09:30,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 02:09:30,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 02:09:30,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 02:09:30,706 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) [2021-08-26 02:09:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 02:09:30,707 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-08-26 02:09:30,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 02:09:30,707 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 02:09:30,708 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) [2021-08-26 02:09:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 02:09:30,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 02:09:30,710 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:09:30,711 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 02:09:30,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 02:09:30,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 02:09:30,716 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 02:09:30,717 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-08-26 02:09:30,717 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 02:09:30,717 INFO L857 garLoopResultBuilder]: For program point L30(lines 30 42) no Hoare annotation was computed. [2021-08-26 02:09:30,717 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 02:09:30,717 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 02:09:30,717 INFO L857 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-08-26 02:09:30,718 INFO L857 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-08-26 02:09:30,718 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-08-26 02:09:30,720 INFO L857 garLoopResultBuilder]: For program point L24(lines 24 28) no Hoare annotation was computed. [2021-08-26 02:09:30,721 INFO L857 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-08-26 02:09:30,721 INFO L857 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-08-26 02:09:30,721 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-08-26 02:09:30,722 INFO L857 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-08-26 02:09:30,722 INFO L857 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2021-08-26 02:09:30,725 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 02:09:30,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 02:09:30 BoogieIcfgContainer [2021-08-26 02:09:30,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 02:09:30,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 02:09:30,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 02:09:30,733 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 02:09:30,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:09:30" (3/4) ... [2021-08-26 02:09:30,737 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 02:09:30,744 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-26 02:09:30,744 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 02:09:30,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 02:09:30,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 02:09:30,778 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 02:09:30,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 02:09:30,780 INFO L168 Benchmark]: Toolchain (without parser) took 1140.27 ms. Allocated memory was 48.2 MB in the beginning and 67.1 MB in the end (delta: 18.9 MB). Free memory was 24.2 MB in the beginning and 32.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-08-26 02:09:30,780 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 48.2 MB. Free memory is still 30.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 02:09:30,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.61 ms. Allocated memory was 48.2 MB in the beginning and 67.1 MB in the end (delta: 18.9 MB). Free memory was 24.0 MB in the beginning and 44.6 MB in the end (delta: -20.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-08-26 02:09:30,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.19 ms. Allocated memory is still 67.1 MB. Free memory was 44.6 MB in the beginning and 50.7 MB in the end (delta: -6.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 02:09:30,785 INFO L168 Benchmark]: Boogie Preprocessor took 37.09 ms. Allocated memory is still 67.1 MB. Free memory was 50.7 MB in the beginning and 49.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 02:09:30,785 INFO L168 Benchmark]: RCFGBuilder took 261.52 ms. Allocated memory is still 67.1 MB. Free memory was 49.7 MB in the beginning and 37.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 02:09:30,786 INFO L168 Benchmark]: TraceAbstraction took 572.52 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 34.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-08-26 02:09:30,786 INFO L168 Benchmark]: Witness Printer took 46.59 ms. Allocated memory is still 67.1 MB. Free memory was 34.8 MB in the beginning and 32.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 02:09:30,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 48.2 MB. Free memory is still 30.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 178.61 ms. Allocated memory was 48.2 MB in the beginning and 67.1 MB in the end (delta: 18.9 MB). Free memory was 24.0 MB in the beginning and 44.6 MB in the end (delta: -20.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.19 ms. Allocated memory is still 67.1 MB. Free memory was 44.6 MB in the beginning and 50.7 MB in the end (delta: -6.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.09 ms. Allocated memory is still 67.1 MB. Free memory was 50.7 MB in the beginning and 49.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 261.52 ms. Allocated memory is still 67.1 MB. Free memory was 49.7 MB in the beginning and 37.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 572.52 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 34.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Witness Printer took 46.59 ms. Allocated memory is still 67.1 MB. Free memory was 34.8 MB in the beginning and 32.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 499.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.0ms, AutomataDifference: 99.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3.3ms, InitialAbstractionConstructionTime: 7.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 14 SDtfs, 3 SDslu, 15 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.0ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 24.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 9.1ms SsaConstructionTime, 52.4ms SatisfiabilityAnalysisTime, 170.6ms 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! [2021-08-26 02:09:30,817 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...