./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/security.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/security.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dc91ecb3e6b970c4bc2c1febc35af98993ef5503 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-04 18:14:53,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-04 18:14:53,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-04 18:14:53,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-04 18:14:53,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-04 18:14:53,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-04 18:14:53,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-04 18:14:53,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-04 18:14:53,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-04 18:14:53,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-04 18:14:53,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-04 18:14:53,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-04 18:14:53,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-04 18:14:53,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-04 18:14:53,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-04 18:14:53,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-04 18:14:53,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-04 18:14:53,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-04 18:14:53,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-04 18:14:53,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-04 18:14:53,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-04 18:14:53,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-04 18:14:53,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-04 18:14:53,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-04 18:14:53,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-04 18:14:53,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-04 18:14:53,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-04 18:14:53,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-04 18:14:53,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-04 18:14:53,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-04 18:14:53,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-04 18:14:53,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-04 18:14:53,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-04 18:14:53,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-04 18:14:53,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-04 18:14:53,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-04 18:14:53,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-04 18:14:53,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-04 18:14:53,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-04 18:14:53,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-04 18:14:53,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-04 18:14:53,651 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-04 18:14:53,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-04 18:14:53,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-04 18:14:53,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-04 18:14:53,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-04 18:14:53,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-04 18:14:53,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-04 18:14:53,709 INFO L138 SettingsManager]: * Use SBE=true [2021-10-04 18:14:53,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-04 18:14:53,710 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-04 18:14:53,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-04 18:14:53,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-04 18:14:53,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-04 18:14:53,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-04 18:14:53,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-04 18:14:53,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-04 18:14:53,713 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-04 18:14:53,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-04 18:14:53,714 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-04 18:14:53,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-04 18:14:53,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-04 18:14:53,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-04 18:14:53,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-04 18:14:53,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:14:53,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-04 18:14:53,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-04 18:14:53,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-04 18:14:53,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-04 18:14:53,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-04 18:14:53,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-04 18:14:53,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-04 18:14:53,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc91ecb3e6b970c4bc2c1febc35af98993ef5503 [2021-10-04 18:14:54,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-04 18:14:54,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-04 18:14:54,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-04 18:14:54,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-04 18:14:54,283 INFO L275 PluginConnector]: CDTParser initialized [2021-10-04 18:14:54,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/security.wvr.c [2021-10-04 18:14:54,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d613bac93/4f465d5e886a419eae2ec5849843caad/FLAGd95bacc88 [2021-10-04 18:14:54,987 INFO L306 CDTParser]: Found 1 translation units. [2021-10-04 18:14:54,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c [2021-10-04 18:14:54,988 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:14:54,988 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2021-10-04 18:14:54,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d613bac93/4f465d5e886a419eae2ec5849843caad/FLAGd95bacc88 [2021-10-04 18:14:55,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d613bac93/4f465d5e886a419eae2ec5849843caad [2021-10-04 18:14:55,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-04 18:14:55,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-04 18:14:55,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-04 18:14:55,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-04 18:14:55,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-04 18:14:55,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74701fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55, skipping insertion in model container [2021-10-04 18:14:55,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-04 18:14:55,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-04 18:14:55,626 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:14:55,721 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c[878,891] [2021-10-04 18:14:55,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:14:55,749 INFO L203 MainTranslator]: Completed pre-run [2021-10-04 18:14:55,764 WARN L612 FunctionHandler]: implicit declaration of function assert [2021-10-04 18:14:55,788 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c[878,891] [2021-10-04 18:14:55,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-04 18:14:55,824 INFO L208 MainTranslator]: Completed translation [2021-10-04 18:14:55,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55 WrapperNode [2021-10-04 18:14:55,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-04 18:14:55,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-04 18:14:55,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-04 18:14:55,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-04 18:14:55,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-04 18:14:55,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-04 18:14:55,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-04 18:14:55,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-04 18:14:55,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-04 18:14:55,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-04 18:14:55,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-04 18:14:55,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-04 18:14:55,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (1/1) ... [2021-10-04 18:14:55,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-04 18:14:55,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-04 18:14:56,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-04 18:14:56,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-04 18:14:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-04 18:14:56,092 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-04 18:14:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-04 18:14:56,093 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-04 18:14:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-04 18:14:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-04 18:14:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-04 18:14:56,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-04 18:14:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-04 18:14:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-04 18:14:56,097 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-04 18:14:56,464 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-04 18:14:56,465 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-04 18:14:56,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:14:56 BoogieIcfgContainer [2021-10-04 18:14:56,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-04 18:14:56,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-04 18:14:56,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-04 18:14:56,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-04 18:14:56,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.10 06:14:55" (1/3) ... [2021-10-04 18:14:56,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739f0e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:14:56, skipping insertion in model container [2021-10-04 18:14:56,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:14:55" (2/3) ... [2021-10-04 18:14:56,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739f0e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:14:56, skipping insertion in model container [2021-10-04 18:14:56,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:14:56" (3/3) ... [2021-10-04 18:14:56,484 INFO L111 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2021-10-04 18:14:56,493 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-04 18:14:56,497 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-04 18:14:56,498 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-04 18:14:56,500 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-04 18:14:56,573 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,578 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,587 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,588 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,589 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,589 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,590 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,591 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,592 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,601 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,604 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,605 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,611 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,612 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-04 18:14:56,622 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-04 18:14:56,689 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-04 18:14:56,699 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-04 18:14:56,699 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-04 18:14:56,717 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-04 18:14:56,731 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 67 transitions, 150 flow [2021-10-04 18:14:56,735 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 67 transitions, 150 flow [2021-10-04 18:14:56,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 67 transitions, 150 flow [2021-10-04 18:14:56,787 INFO L129 PetriNetUnfolder]: 3/65 cut-off events. [2021-10-04 18:14:56,788 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-04 18:14:56,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 65 events. 3/65 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2021-10-04 18:14:56,795 INFO L116 LiptonReduction]: Number of co-enabled transitions 432 [2021-10-04 18:14:58,970 INFO L131 LiptonReduction]: Checked pairs total: 445 [2021-10-04 18:14:58,971 INFO L133 LiptonReduction]: Total number of compositions: 59 [2021-10-04 18:14:58,981 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 14 transitions, 44 flow [2021-10-04 18:14:58,994 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:14:58,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:14:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-04 18:14:59,004 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:14:59,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:14:59,006 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-04 18:14:59,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:14:59,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1107014301, now seen corresponding path program 1 times [2021-10-04 18:14:59,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:14:59,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849798622] [2021-10-04 18:14:59,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:14:59,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:14:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:14:59,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:14:59,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:14:59,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849798622] [2021-10-04 18:14:59,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849798622] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:14:59,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:14:59,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 18:14:59,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338292694] [2021-10-04 18:14:59,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-04 18:14:59,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:14:59,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-04 18:14:59,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 18:14:59,397 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:14:59,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:14:59,439 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-10-04 18:14:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-04 18:14:59,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-04 18:14:59,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:14:59,450 INFO L225 Difference]: With dead ends: 25 [2021-10-04 18:14:59,451 INFO L226 Difference]: Without dead ends: 18 [2021-10-04 18:14:59,452 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:14:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-04 18:14:59,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-04 18:14:59,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:14:59,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-04 18:14:59,487 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 11 [2021-10-04 18:14:59,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:14:59,488 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-04 18:14:59,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:14:59,489 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2021-10-04 18:14:59,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-04 18:14:59,490 INFO L504 BasicCegarLoop]: Found error trace [2021-10-04 18:14:59,490 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-04 18:14:59,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-04 18:14:59,491 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-04 18:14:59,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-04 18:14:59,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1885745171, now seen corresponding path program 2 times [2021-10-04 18:14:59,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-04 18:14:59,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973230804] [2021-10-04 18:14:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-04 18:14:59,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-04 18:14:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-04 18:14:59,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-04 18:14:59,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-04 18:14:59,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973230804] [2021-10-04 18:14:59,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973230804] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-04 18:14:59,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-04 18:14:59,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-04 18:14:59,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014677788] [2021-10-04 18:14:59,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-04 18:14:59,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-04 18:14:59,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-04 18:14:59,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-04 18:14:59,596 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:14:59,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-04 18:14:59,615 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2021-10-04 18:14:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-04 18:14:59,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-04 18:14:59,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-04 18:14:59,623 INFO L225 Difference]: With dead ends: 17 [2021-10-04 18:14:59,623 INFO L226 Difference]: Without dead ends: 0 [2021-10-04 18:14:59,624 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-04 18:14:59,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-04 18:14:59,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-04 18:14:59,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:14:59,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-04 18:14:59,625 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-04 18:14:59,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-04 18:14:59,626 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-04 18:14:59,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-04 18:14:59,626 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-04 18:14:59,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-04 18:14:59,630 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-04 18:14:59,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-04 18:14:59,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-04 18:14:59,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-04 18:14:59,636 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-04 18:14:59,637 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-04 18:14:59,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 06:14:59 BasicIcfg [2021-10-04 18:14:59,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-04 18:14:59,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-04 18:14:59,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-04 18:14:59,641 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-04 18:14:59,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:14:56" (3/4) ... [2021-10-04 18:14:59,646 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-04 18:14:59,658 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-04 18:14:59,658 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-04 18:14:59,666 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-04 18:14:59,666 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-04 18:14:59,666 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-04 18:14:59,730 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-04 18:14:59,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-04 18:14:59,739 INFO L168 Benchmark]: Toolchain (without parser) took 4375.29 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 28.2 MB in the beginning and 52.9 MB in the end (delta: -24.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 18:14:59,741 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 33.4 MB in the beginning and 33.4 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 18:14:59,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.19 ms. Allocated memory is still 52.4 MB. Free memory was 28.0 MB in the beginning and 31.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-04 18:14:59,744 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.52 ms. Allocated memory is still 52.4 MB. Free memory was 31.7 MB in the beginning and 30.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:14:59,744 INFO L168 Benchmark]: Boogie Preprocessor took 60.87 ms. Allocated memory is still 52.4 MB. Free memory was 30.1 MB in the beginning and 29.2 MB in the end (delta: 995.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 18:14:59,745 INFO L168 Benchmark]: RCFGBuilder took 516.00 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 42.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-04 18:14:59,746 INFO L168 Benchmark]: TraceAbstraction took 3168.29 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.1 MB in the beginning and 55.4 MB in the end (delta: -13.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-04 18:14:59,749 INFO L168 Benchmark]: Witness Printer took 93.93 ms. Allocated memory is still 75.5 MB. Free memory was 55.4 MB in the beginning and 52.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-04 18:14:59,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 33.4 MB in the beginning and 33.4 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 459.19 ms. Allocated memory is still 52.4 MB. Free memory was 28.0 MB in the beginning and 31.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.52 ms. Allocated memory is still 52.4 MB. Free memory was 31.7 MB in the beginning and 30.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.87 ms. Allocated memory is still 52.4 MB. Free memory was 30.1 MB in the beginning and 29.2 MB in the end (delta: 995.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 516.00 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 42.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3168.29 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.1 MB in the beginning and 55.4 MB in the end (delta: -13.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 93.93 ms. Allocated memory is still 75.5 MB. Free memory was 55.4 MB in the beginning and 52.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2236.1ms, 71 PlacesBefore, 21 PlacesAfterwards, 67 TransitionsBefore, 14 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 59 TotalNumberOfCompositions, 445 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 445, positive: 445, positive conditional: 0, positive unconditional: 445, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 321, positive: 321, positive conditional: 0, positive unconditional: 321, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 321, positive: 321, positive conditional: 0, positive unconditional: 321, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 445, positive: 124, positive conditional: 0, positive unconditional: 124, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 321, unknown conditional: 0, unknown unconditional: 321] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 51]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 85 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2948.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.8ms, AutomataDifference: 103.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2294.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 23 SDslu, 23 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.9ms SsaConstructionTime, 113.5ms SatisfiabilityAnalysisTime, 224.4ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-04 18:14:59,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...