./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label00.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b49fbf439c6d5cf33b5a144a2382feff3c2b3eeb58f6496beb37cacb5d6cd07 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:19:25,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:19:25,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:19:26,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:19:26,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:19:26,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:19:26,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:19:26,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:19:26,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:19:26,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:19:26,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:19:26,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:19:26,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:19:26,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:19:26,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:19:26,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:19:26,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:19:26,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:19:26,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:19:26,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:19:26,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:19:26,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:19:26,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:19:26,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:19:26,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:19:26,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:19:26,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:19:26,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:19:26,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:19:26,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:19:26,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:19:26,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:19:26,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:19:26,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:19:26,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:19:26,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:19:26,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:19:26,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:19:26,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:19:26,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:19:26,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:19:26,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:19:26,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:19:26,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:19:26,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:19:26,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:19:26,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:19:26,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:19:26,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:19:26,171 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:19:26,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:19:26,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:19:26,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:19:26,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:19:26,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:19:26,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:19:26,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:19:26,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:19:26,174 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:19:26,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:19:26,175 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:19:26,175 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:19:26,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:19:26,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:19:26,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:19:26,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:19:26,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:19:26,176 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:19:26,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:19:26,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:19:26,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b49fbf439c6d5cf33b5a144a2382feff3c2b3eeb58f6496beb37cacb5d6cd07 [2021-11-23 01:19:26,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:19:26,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:19:26,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:19:26,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:19:26,500 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:19:26,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem10_label00.c [2021-11-23 01:19:26,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/data/d76c4237e/c48527606ad24236a336ab0ca5098e55/FLAGf363f45a1 [2021-11-23 01:19:27,215 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:19:27,231 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/sv-benchmarks/c/eca-rers2012/Problem10_label00.c [2021-11-23 01:19:27,247 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/data/d76c4237e/c48527606ad24236a336ab0ca5098e55/FLAGf363f45a1 [2021-11-23 01:19:27,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/data/d76c4237e/c48527606ad24236a336ab0ca5098e55 [2021-11-23 01:19:27,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:19:27,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:19:27,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:19:27,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:19:27,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:19:27,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:19:27" (1/1) ... [2021-11-23 01:19:27,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cfce101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:27, skipping insertion in model container [2021-11-23 01:19:27,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:19:27" (1/1) ... [2021-11-23 01:19:27,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:19:27,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:19:27,719 WARN L230 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_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/sv-benchmarks/c/eca-rers2012/Problem10_label00.c[5445,5458] [2021-11-23 01:19:27,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:19:27,883 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:19:27,932 WARN L230 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_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/sv-benchmarks/c/eca-rers2012/Problem10_label00.c[5445,5458] [2021-11-23 01:19:28,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:19:28,038 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:19:28,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28 WrapperNode [2021-11-23 01:19:28,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:19:28,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:19:28,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:19:28,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:19:28,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,133 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-11-23 01:19:28,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:19:28,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:19:28,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:19:28,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:19:28,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:19:28,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:19:28,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:19:28,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:19:28,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:28" (1/1) ... [2021-11-23 01:19:28,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:19:28,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:19:28,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:19:28,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:19:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:19:28,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:19:28,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:19:28,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:19:28,479 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:19:28,481 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:19:29,565 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:19:31,301 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:19:31,302 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:19:31,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:19:31 BoogieIcfgContainer [2021-11-23 01:19:31,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:19:31,306 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:19:31,306 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:19:31,316 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:19:31,317 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:19:31" (1/1) ... [2021-11-23 01:19:31,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:19:31,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:19:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:19:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:19:31,414 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:31,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:19:31,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:19:31,739 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:19:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:19:31,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:31,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:19:32,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:32,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2021-11-23 01:19:32,487 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2021-11-23 01:19:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:19:32,489 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:32,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:33,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:19:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 26 states and 42 transitions. [2021-11-23 01:19:34,129 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2021-11-23 01:19:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:19:34,130 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:34,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:19:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:34,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2021-11-23 01:19:34,904 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2021-11-23 01:19:34,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:19:34,905 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:34,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:35,594 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 01:19:36,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 35 states and 55 transitions. [2021-11-23 01:19:36,280 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2021-11-23 01:19:36,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:19:36,281 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:36,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 01:19:36,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:36,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2021-11-23 01:19:36,840 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2021-11-23 01:19:36,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:19:36,841 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2021-11-23 01:19:36,852 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:19:37,184 INFO L560 CodeCheckObserver]: Invariant with dag size 23 [2021-11-23 01:19:37,195 INFO L560 CodeCheckObserver]: Invariant with dag size 24 [2021-11-23 01:19:37,196 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:19:37,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:19:37 ImpRootNode [2021-11-23 01:19:37,197 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:19:37,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:19:37,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:19:37,198 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:19:37,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:19:31" (3/4) ... [2021-11-23 01:19:37,202 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:19:37,225 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 183 nodes and edges [2021-11-23 01:19:37,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-23 01:19:37,229 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 01:19:37,231 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:19:37,384 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:19:37,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:19:37,386 INFO L158 Benchmark]: Toolchain (without parser) took 9941.83ms. Allocated memory was 94.4MB in the beginning and 450.9MB in the end (delta: 356.5MB). Free memory was 71.1MB in the beginning and 162.9MB in the end (delta: -91.7MB). Peak memory consumption was 265.7MB. Max. memory is 16.1GB. [2021-11-23 01:19:37,386 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 73.4MB. Free memory was 48.1MB in the beginning and 48.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:19:37,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.32ms. Allocated memory is still 94.4MB. Free memory was 70.6MB in the beginning and 44.1MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 01:19:37,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.61ms. Allocated memory is still 94.4MB. Free memory was 44.1MB in the beginning and 36.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:19:37,388 INFO L158 Benchmark]: Boogie Preprocessor took 83.20ms. Allocated memory is still 94.4MB. Free memory was 36.0MB in the beginning and 65.5MB in the end (delta: -29.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-11-23 01:19:37,388 INFO L158 Benchmark]: RCFGBuilder took 3086.69ms. Allocated memory was 94.4MB in the beginning and 222.3MB in the end (delta: 127.9MB). Free memory was 65.5MB in the beginning and 149.6MB in the end (delta: -84.1MB). Peak memory consumption was 151.9MB. Max. memory is 16.1GB. [2021-11-23 01:19:37,389 INFO L158 Benchmark]: CodeCheck took 5891.38ms. Allocated memory was 222.3MB in the beginning and 450.9MB in the end (delta: 228.6MB). Free memory was 149.6MB in the beginning and 178.6MB in the end (delta: -29.0MB). Peak memory consumption was 198.5MB. Max. memory is 16.1GB. [2021-11-23 01:19:37,389 INFO L158 Benchmark]: Witness Printer took 187.28ms. Allocated memory is still 450.9MB. Free memory was 178.6MB in the beginning and 162.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 01:19:37,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 192 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 422 IncrementalHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 80 mSDtfsCounter, 422 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 681 GetRequests, 585 SyntacticMatches, 38 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1563 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 910 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 8/65 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 155]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((a19 <= 5 || !(a10 == 0)) && 14 == a4) && a12 == 0) || ((7 <= a19 && 14 == a4) && a12 == 0)) || ((a1 + 13 <= 0 && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((a1 + 13 <= 0 || !(a10 == 0)) && 14 == a4) && a12 == 0) || (((!(a19 == 6) || 38 < a1) && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 73.4MB. Free memory was 48.1MB in the beginning and 48.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 604.32ms. Allocated memory is still 94.4MB. Free memory was 70.6MB in the beginning and 44.1MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.61ms. Allocated memory is still 94.4MB. Free memory was 44.1MB in the beginning and 36.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.20ms. Allocated memory is still 94.4MB. Free memory was 36.0MB in the beginning and 65.5MB in the end (delta: -29.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 3086.69ms. Allocated memory was 94.4MB in the beginning and 222.3MB in the end (delta: 127.9MB). Free memory was 65.5MB in the beginning and 149.6MB in the end (delta: -84.1MB). Peak memory consumption was 151.9MB. Max. memory is 16.1GB. * CodeCheck took 5891.38ms. Allocated memory was 222.3MB in the beginning and 450.9MB in the end (delta: 228.6MB). Free memory was 149.6MB in the beginning and 178.6MB in the end (delta: -29.0MB). Peak memory consumption was 198.5MB. Max. memory is 16.1GB. * Witness Printer took 187.28ms. Allocated memory is still 450.9MB. Free memory was 178.6MB in the beginning and 162.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:19:37,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4426e7a3-08ac-4b03-ac59-b19c08e4aee3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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