./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:18:34,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:18:34,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:18:34,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:18:34,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:18:34,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:18:34,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:18:34,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:18:34,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:18:34,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:18:34,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:18:34,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:18:34,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:18:34,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:18:34,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:18:34,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:18:34,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:18:34,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:18:34,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:18:34,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:18:34,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:18:34,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:18:34,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:18:34,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:18:34,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:18:34,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:18:34,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:18:34,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:18:34,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:18:34,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:18:34,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:18:34,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:18:34,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:18:34,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:18:34,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:18:34,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:18:34,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:18:34,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:18:34,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:18:34,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:18:34,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:18:34,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2021-10-29 05:18:34,718 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:18:34,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:18:34,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:18:34,720 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:18:34,720 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:18:34,721 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:18:34,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:18:34,722 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:18:34,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:18:34,722 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:18:34,723 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:18:34,723 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:18:34,724 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:18:34,724 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:18:34,724 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:18:34,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:18:34,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:18:34,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:18:34,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:18:34,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:18:34,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:18:34,727 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:18:34,727 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:18:34,727 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 05:18:34,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:18:34,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:18:34,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:18:34,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:18:34,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:18:34,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:18:34,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:18:34,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:18:34,730 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:18:34,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:18:34,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:18:34,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:18:34,731 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2021-10-29 05:18:35,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:18:35,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:18:35,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:18:35,167 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:18:35,168 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:18:35,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-10-29 05:18:35,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/data/b509608ff/88233aa304114af19516c58cf67f0655/FLAG1172ee4a3 [2021-10-29 05:18:35,910 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:18:35,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-10-29 05:18:35,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/data/b509608ff/88233aa304114af19516c58cf67f0655/FLAG1172ee4a3 [2021-10-29 05:18:36,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/data/b509608ff/88233aa304114af19516c58cf67f0655 [2021-10-29 05:18:36,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:18:36,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:18:36,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:18:36,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:18:36,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:18:36,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226a80b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36, skipping insertion in model container [2021-10-29 05:18:36,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:18:36,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:18:36,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:18:36,494 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:18:36,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:18:36,531 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:18:36,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36 WrapperNode [2021-10-29 05:18:36,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:18:36,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:18:36,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:18:36,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:18:36,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:18:36,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:18:36,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:18:36,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:18:36,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:18:36,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:18:36,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:18:36,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:18:36,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (1/1) ... [2021-10-29 05:18:36,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:18:36,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:18:36,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:18:36,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:18:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:18:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:18:36,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:18:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:18:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:18:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:18:37,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:18:37,122 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 05:18:37,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:18:37 BoogieIcfgContainer [2021-10-29 05:18:37,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:18:37,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:18:37,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:18:37,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:18:37,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:18:36" (1/3) ... [2021-10-29 05:18:37,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390844b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:18:37, skipping insertion in model container [2021-10-29 05:18:37,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:36" (2/3) ... [2021-10-29 05:18:37,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390844b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:18:37, skipping insertion in model container [2021-10-29 05:18:37,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:18:37" (3/3) ... [2021-10-29 05:18:37,144 INFO L111 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2021-10-29 05:18:37,152 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:18:37,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-29 05:18:37,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:18:37,234 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-10-29 05:18:37,235 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-29 05:18:37,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 20 states have internal predecessors, (22), 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) [2021-10-29 05:18:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 05:18:37,268 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:37,269 INFO L513 BasicCegarLoop]: trace histogram [1, 1] [2021-10-29 05:18:37,270 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-10-29 05:18:37,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:37,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2205, now seen corresponding path program 1 times [2021-10-29 05:18:37,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:37,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955892308] [2021-10-29 05:18:37,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:37,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:37,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:37,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:37,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955892308] [2021-10-29 05:18:37,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955892308] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:37,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:18:37,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:18:37,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126185078] [2021-10-29 05:18:37,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:18:37,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:37,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:18:37,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:18:37,567 INFO L87 Difference]: Start difference. First operand has 21 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 20 states have internal predecessors, (22), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-29 05:18:37,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:37,646 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-29 05:18:37,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:18:37,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-10-29 05:18:37,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:37,658 INFO L225 Difference]: With dead ends: 16 [2021-10-29 05:18:37,658 INFO L226 Difference]: Without dead ends: 15 [2021-10-29 05:18:37,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:18:37,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-29 05:18:37,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-29 05:18:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-10-29 05:18:37,693 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 2 [2021-10-29 05:18:37,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:37,694 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-10-29 05:18:37,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-29 05:18:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-10-29 05:18:37,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 05:18:37,695 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:37,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1] [2021-10-29 05:18:37,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:18:37,696 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-10-29 05:18:37,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:37,700 INFO L85 PathProgramCache]: Analyzing trace with hash 2206, now seen corresponding path program 1 times [2021-10-29 05:18:37,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:37,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437145557] [2021-10-29 05:18:37,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:37,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:37,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:37,776 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:37,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437145557] [2021-10-29 05:18:37,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437145557] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:37,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:18:37,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:18:37,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893286162] [2021-10-29 05:18:37,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:18:37,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:37,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:18:37,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:18:37,786 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-29 05:18:37,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:37,811 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-29 05:18:37,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:18:37,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-10-29 05:18:37,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:37,813 INFO L225 Difference]: With dead ends: 10 [2021-10-29 05:18:37,814 INFO L226 Difference]: Without dead ends: 10 [2021-10-29 05:18:37,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:18:37,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-29 05:18:37,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-29 05:18:37,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2021-10-29 05:18:37,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-29 05:18:37,820 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 2 [2021-10-29 05:18:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:37,820 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-29 05:18:37,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-29 05:18:37,821 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-29 05:18:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:18:37,822 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:37,822 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:18:37,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:18:37,824 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 7 more)] === [2021-10-29 05:18:37,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:37,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2068107654, now seen corresponding path program 1 times [2021-10-29 05:18:37,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:37,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680300769] [2021-10-29 05:18:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:37,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:37,976 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:37,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680300769] [2021-10-29 05:18:37,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680300769] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:37,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:18:37,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:18:37,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721109052] [2021-10-29 05:18:37,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:18:37,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:37,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:18:37,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:18:37,980 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-29 05:18:38,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:38,003 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-29 05:18:38,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:18:38,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-10-29 05:18:38,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:38,005 INFO L225 Difference]: With dead ends: 9 [2021-10-29 05:18:38,005 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:18:38,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:18:38,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:18:38,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:18:38,006 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) [2021-10-29 05:18:38,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:18:38,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-29 05:18:38,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:38,008 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:18:38,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-29 05:18:38,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:18:38,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:18:38,011 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 05:18:38,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 05:18:38,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-29 05:18:38,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-29 05:18:38,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-29 05:18:38,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-29 05:18:38,014 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-29 05:18:38,014 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-29 05:18:38,014 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-29 05:18:38,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-29 05:18:38,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:18:38,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:18:38,019 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 05:18:38,022 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:18:38,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:18:38 BoogieIcfgContainer [2021-10-29 05:18:38,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:18:38,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:18:38,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:18:38,027 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:18:38,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:18:37" (3/4) ... [2021-10-29 05:18:38,031 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:18:38,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-29 05:18:38,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-29 05:18:38,044 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 05:18:38,100 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:18:38,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:18:38,102 INFO L168 Benchmark]: Toolchain (without parser) took 1812.05 ms. Allocated memory is still 117.4 MB. Free memory was 89.7 MB in the beginning and 88.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:38,102 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 81.8 MB. Free memory is still 48.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:18:38,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.88 ms. Allocated memory is still 117.4 MB. Free memory was 89.5 MB in the beginning and 80.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:38,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.16 ms. Allocated memory is still 117.4 MB. Free memory was 80.7 MB in the beginning and 79.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:38,104 INFO L168 Benchmark]: Boogie Preprocessor took 42.82 ms. Allocated memory is still 117.4 MB. Free memory was 79.4 MB in the beginning and 78.5 MB in the end (delta: 940.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:18:38,105 INFO L168 Benchmark]: RCFGBuilder took 506.64 ms. Allocated memory is still 117.4 MB. Free memory was 78.4 MB in the beginning and 67.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:38,105 INFO L168 Benchmark]: TraceAbstraction took 890.95 ms. Allocated memory is still 117.4 MB. Free memory was 66.7 MB in the beginning and 91.1 MB in the end (delta: -24.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:18:38,106 INFO L168 Benchmark]: Witness Printer took 73.62 ms. Allocated memory is still 117.4 MB. Free memory was 91.1 MB in the beginning and 88.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:38,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 81.8 MB. Free memory is still 48.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 241.88 ms. Allocated memory is still 117.4 MB. Free memory was 89.5 MB in the beginning and 80.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.16 ms. Allocated memory is still 117.4 MB. Free memory was 80.7 MB in the beginning and 79.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.82 ms. Allocated memory is still 117.4 MB. Free memory was 79.4 MB in the beginning and 78.5 MB in the end (delta: 940.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 506.64 ms. Allocated memory is still 117.4 MB. Free memory was 78.4 MB in the beginning and 67.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 890.95 ms. Allocated memory is still 117.4 MB. Free memory was 66.7 MB in the beginning and 91.1 MB in the end (delta: -24.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 73.62 ms. Allocated memory is still 117.4 MB. Free memory was 91.1 MB in the beginning and 88.5 MB in the end (delta: 2.6 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 23 SDslu, 3 SDs, 0 SdLazy, 34 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 05:18:38,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294e4c1b-255f-43f8-851e-c6ee0aa8be04/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...