./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ad111d6936056460510a10e712b295b6541e8406527db903438c9aa67289a02 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:35:18,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:35:18,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:35:19,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:35:19,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:35:19,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:35:19,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:35:19,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:35:19,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:35:19,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:35:19,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:35:19,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:35:19,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:35:19,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:35:19,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:35:19,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:35:19,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:35:19,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:35:19,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:35:19,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:35:19,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:35:19,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:35:19,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:35:19,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:35:19,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:35:19,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:35:19,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:35:19,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:35:19,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:35:19,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:35:19,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:35:19,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:35:19,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:35:19,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:35:19,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:35:19,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:35:19,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:35:19,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:35:19,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:35:19,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:35:19,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:35:19,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:35:19,122 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:35:19,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:35:19,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:35:19,124 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:35:19,124 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:35:19,124 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:35:19,125 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:35:19,125 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:35:19,131 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:35:19,131 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:35:19,133 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:35:19,133 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:35:19,134 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:35:19,134 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:35:19,134 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:35:19,134 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:35:19,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:35:19,136 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:35:19,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:35:19,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:35:19,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:35:19,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:35:19,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:35:19,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:35:19,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:35:19,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:35:19,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:35:19,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:35:19,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:35:19,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:35:19,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:35:19,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:35:19,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:35:19,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:35:19,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:35:19,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:35:19,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:35:19,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:35:19,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:35:19,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:35:19,147 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_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad111d6936056460510a10e712b295b6541e8406527db903438c9aa67289a02 [2021-11-13 01:35:19,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:35:19,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:35:19,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:35:19,426 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:35:19,427 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:35:19,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/eca-rers2012/Problem10_label06.c [2021-11-13 01:35:19,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/data/aaf592e2f/334a79ba87214a228dd18552f8344455/FLAG58ed9a1c0 [2021-11-13 01:35:20,012 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:35:20,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/sv-benchmarks/c/eca-rers2012/Problem10_label06.c [2021-11-13 01:35:20,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/data/aaf592e2f/334a79ba87214a228dd18552f8344455/FLAG58ed9a1c0 [2021-11-13 01:35:20,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/data/aaf592e2f/334a79ba87214a228dd18552f8344455 [2021-11-13 01:35:20,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:35:20,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:35:20,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:35:20,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:35:20,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:35:20,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:20,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da5762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20, skipping insertion in model container [2021-11-13 01:35:20,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:20,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:35:20,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:35:20,588 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/sv-benchmarks/c/eca-rers2012/Problem10_label06.c[2930,2943] [2021-11-13 01:35:20,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:35:20,766 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:35:20,785 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/sv-benchmarks/c/eca-rers2012/Problem10_label06.c[2930,2943] [2021-11-13 01:35:20,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:35:20,878 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:35:20,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20 WrapperNode [2021-11-13 01:35:20,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:35:20,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:35:20,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:35:20,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:35:20,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:20,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:20,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:35:20,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:35:20,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:35:20,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:35:20,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:20,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:20,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:20,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:21,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:21,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:21,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:21,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:35:21,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:35:21,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:35:21,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:35:21,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (1/1) ... [2021-11-13 01:35:21,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:35:21,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:35:21,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:35:21,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:35:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:35:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:35:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:35:21,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:35:24,411 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:35:24,412 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:35:24,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:35:24 BoogieIcfgContainer [2021-11-13 01:35:24,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:35:24,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:35:24,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:35:24,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:35:24,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:35:20" (1/3) ... [2021-11-13 01:35:24,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3504b5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:35:24, skipping insertion in model container [2021-11-13 01:35:24,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:20" (2/3) ... [2021-11-13 01:35:24,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3504b5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:35:24, skipping insertion in model container [2021-11-13 01:35:24,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:35:24" (3/3) ... [2021-11-13 01:35:24,423 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label06.c [2021-11-13 01:35:24,428 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:35:24,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:35:24,475 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:35:24,482 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, mAutomataTypeConcurrency=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 [2021-11-13 01:35:24,482 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:35:24,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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) [2021-11-13 01:35:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:35:24,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:24,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:35:24,501 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:24,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash 885164059, now seen corresponding path program 1 times [2021-11-13 01:35:24,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:35:24,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827918560] [2021-11-13 01:35:24,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:24,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:35:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:24,745 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:35:24,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827918560] [2021-11-13 01:35:24,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827918560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:24,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:24,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:35:24,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860970432] [2021-11-13 01:35:24,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:24,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:35:24,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:35:24,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:35:24,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:35:24,782 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-13 01:35:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:24,863 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-11-13 01:35:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:35:24,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-13 01:35:24,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:24,874 INFO L225 Difference]: With dead ends: 23 [2021-11-13 01:35:24,874 INFO L226 Difference]: Without dead ends: 11 [2021-11-13 01:35:24,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:35:24,883 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.59ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.29ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:24,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.59ms Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 61.29ms Time] [2021-11-13 01:35:24,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-13 01:35:24,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-13 01:35:24,915 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) [2021-11-13 01:35:24,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-13 01:35:24,917 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-11-13 01:35:24,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:24,917 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-11-13 01:35:24,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-13 01:35:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-13 01:35:24,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:35:24,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:24,919 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-11-13 01:35:24,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:35:24,920 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:24,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:24,924 INFO L85 PathProgramCache]: Analyzing trace with hash -999635661, now seen corresponding path program 1 times [2021-11-13 01:35:24,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:35:24,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254904732] [2021-11-13 01:35:24,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:24,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:35:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:25,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:25,336 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:35:25,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254904732] [2021-11-13 01:35:25,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254904732] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:35:25,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164337757] [2021-11-13 01:35:25,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:25,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:35:25,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:35:25,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:35:25,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 01:35:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:25,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 01:35:25,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:39,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:39,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:51,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 01:35:51,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164337757] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:35:51,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:35:51,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3, 4] total 7 [2021-11-13 01:35:51,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220129755] [2021-11-13 01:35:51,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:51,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:35:51,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:35:51,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:35:51,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:35:51,803 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:35:51,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:51,833 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-11-13 01:35:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:35:51,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-13 01:35:51,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:51,837 INFO L225 Difference]: With dead ends: 10 [2021-11-13 01:35:51,837 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:35:51,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:35:51,842 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.85ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:51,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 4 Unknown, 0 Unchecked, 0.12ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 27.85ms Time] [2021-11-13 01:35:51,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:35:51,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:35:51,847 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) [2021-11-13 01:35:51,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:35:51,847 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-13 01:35:51,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:51,856 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:35:51,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:35:51,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:35:51,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:35:51,860 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:35:51,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:52,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:35:52,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:35:52,098 INFO L858 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-11-13 01:35:52,098 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-11-13 01:35:52,099 INFO L854 garLoopResultBuilder]: At program point L85-1(lines 30 584) the Hoare annotation is: (or (not (= ~a19~0 6)) (<= ~a1~0 218) (not (= ~a10~0 1))) [2021-11-13 01:35:52,100 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:35:52,100 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-13 01:35:52,100 INFO L861 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-11-13 01:35:52,101 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:35:52,101 INFO L854 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= ~a19~0 6)) (<= ~a1~0 218) (not (= ~a10~0 1))) [2021-11-13 01:35:52,101 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2021-11-13 01:35:52,105 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 01:35:52,106 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:35:52,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:35:52 BoogieIcfgContainer [2021-11-13 01:35:52,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:35:52,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:35:52,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:35:52,130 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:35:52,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:35:24" (3/4) ... [2021-11-13 01:35:52,134 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:35:52,173 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 184 nodes and edges [2021-11-13 01:35:52,175 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-13 01:35:52,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-13 01:35:52,179 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:35:52,334 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:35:52,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:35:52,335 INFO L158 Benchmark]: Toolchain (without parser) took 32043.77ms. Allocated memory was 107.0MB in the beginning and 1.1GB in the end (delta: 966.8MB). Free memory was 67.1MB in the beginning and 617.0MB in the end (delta: -549.9MB). Peak memory consumption was 417.6MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,336 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:35:52,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.11ms. Allocated memory is still 107.0MB. Free memory was 66.9MB in the beginning and 65.6MB in the end (delta: 1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.70ms. Allocated memory is still 107.0MB. Free memory was 65.6MB in the beginning and 57.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,337 INFO L158 Benchmark]: Boogie Preprocessor took 103.42ms. Allocated memory is still 107.0MB. Free memory was 57.6MB in the beginning and 53.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,337 INFO L158 Benchmark]: RCFGBuilder took 3346.77ms. Allocated memory was 107.0MB in the beginning and 211.8MB in the end (delta: 104.9MB). Free memory was 53.1MB in the beginning and 127.9MB in the end (delta: -74.9MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,338 INFO L158 Benchmark]: TraceAbstraction took 27712.90ms. Allocated memory was 211.8MB in the beginning and 1.1GB in the end (delta: 861.9MB). Free memory was 126.9MB in the beginning and 632.7MB in the end (delta: -505.8MB). Peak memory consumption was 356.1MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,338 INFO L158 Benchmark]: Witness Printer took 204.81ms. Allocated memory is still 1.1GB. Free memory was 632.7MB in the beginning and 617.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.11ms. Allocated memory is still 107.0MB. Free memory was 66.9MB in the beginning and 65.6MB in the end (delta: 1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.70ms. Allocated memory is still 107.0MB. Free memory was 65.6MB in the beginning and 57.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.42ms. Allocated memory is still 107.0MB. Free memory was 57.6MB in the beginning and 53.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3346.77ms. Allocated memory was 107.0MB in the beginning and 211.8MB in the end (delta: 104.9MB). Free memory was 53.1MB in the beginning and 127.9MB in the end (delta: -74.9MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. * TraceAbstraction took 27712.90ms. Allocated memory was 211.8MB in the beginning and 1.1GB in the end (delta: 861.9MB). Free memory was 126.9MB in the beginning and 632.7MB in the end (delta: -505.8MB). Peak memory consumption was 356.1MB. Max. memory is 16.1GB. * Witness Printer took 204.81ms. Allocated memory is still 1.1GB. Free memory was 632.7MB in the beginning and 617.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * 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: 86]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 89.15ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 79.59ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 14 mSolverCounterSat, 0.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 25 HoareAnnotationTreeSize, 3 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 26.7s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 445 SizeOfPredicates, 4 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 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 - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (!(a19 == 6) || a1 <= 218) || !(a10 == 1) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (!(a19 == 6) || a1 <= 218) || !(a10 == 1) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-13 01:35:52,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dceacceb-203a-415a-acf9-f73e64c92894/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE