./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/matrix-2.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_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/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_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/matrix-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/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_294fbe1d-566c-4ef3-a200-39a43d891f47/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 1414fc78e8c6ff23892599c2d6eff3c1d8d515ca94035045b938b2c8c402305b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:47:52,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:47:52,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:47:52,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:47:52,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:47:52,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:47:52,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:47:52,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:47:52,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:47:52,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:47:52,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:47:52,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:47:52,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:47:52,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:47:52,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:47:52,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:47:52,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:47:52,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:47:52,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:47:52,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:47:52,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:47:52,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:47:52,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:47:52,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:47:52,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:47:52,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:47:52,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:47:52,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:47:52,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:47:52,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:47:52,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:47:52,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:47:52,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:47:52,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:47:52,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:47:52,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:47:52,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:47:52,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:47:52,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:47:52,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:47:52,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:47:52,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:47:52,886 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:47:52,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:47:52,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:47:52,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:47:52,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:47:52,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:47:52,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:47:52,888 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:47:52,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:47:52,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:47:52,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:47:52,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:47:52,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:47:52,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:47:52,890 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:47:52,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:47:52,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:47:52,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:47:52,891 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:47:52,891 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:47:52,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:47:52,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:47:52,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:47:52,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:47:52,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:47:52,892 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:47:52,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:47:52,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:47:52,893 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_294fbe1d-566c-4ef3-a200-39a43d891f47/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1414fc78e8c6ff23892599c2d6eff3c1d8d515ca94035045b938b2c8c402305b [2021-11-23 00:47:53,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:47:53,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:47:53,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:47:53,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:47:53,148 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:47:53,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loops/matrix-2.c [2021-11-23 00:47:53,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/data/436bcc291/4402559bcd644e358d74af2249d00a54/FLAGbe7cf2de0 [2021-11-23 00:47:53,658 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:47:53,660 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/sv-benchmarks/c/loops/matrix-2.c [2021-11-23 00:47:53,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/data/436bcc291/4402559bcd644e358d74af2249d00a54/FLAGbe7cf2de0 [2021-11-23 00:47:54,038 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/data/436bcc291/4402559bcd644e358d74af2249d00a54 [2021-11-23 00:47:54,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:47:54,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:47:54,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:47:54,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:47:54,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:47:54,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc7a0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54, skipping insertion in model container [2021-11-23 00:47:54,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:47:54,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:47:54,202 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_294fbe1d-566c-4ef3-a200-39a43d891f47/sv-benchmarks/c/loops/matrix-2.c[320,333] [2021-11-23 00:47:54,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:47:54,257 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:47:54,267 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_294fbe1d-566c-4ef3-a200-39a43d891f47/sv-benchmarks/c/loops/matrix-2.c[320,333] [2021-11-23 00:47:54,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:47:54,293 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:47:54,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54 WrapperNode [2021-11-23 00:47:54,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:47:54,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:47:54,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:47:54,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:47:54,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,333 INFO L137 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2021-11-23 00:47:54,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:47:54,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:47:54,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:47:54,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:47:54,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:47:54,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:47:54,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:47:54,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:47:54,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:47:54,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:47:54,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:47:54,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:47:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:47:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:47:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 00:47:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:47:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:47:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:47:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:47:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 00:47:54,568 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:47:54,569 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:47:54,785 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:47:54,856 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:47:54,856 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 00:47:54,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:47:54 BoogieIcfgContainer [2021-11-23 00:47:54,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:47:54,878 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:47:54,878 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:47:54,891 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:47:54,891 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:47:54" (1/1) ... [2021-11-23 00:47:54,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:47:54,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:47:54,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2021-11-23 00:47:54,966 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2021-11-23 00:47:54,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:47:54,969 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:47:54,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:47:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:47:55,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 00:47:55,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:47:55,177 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 00:47:55,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:47:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 12 states and 19 transitions. [2021-11-23 00:47:55,256 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 19 transitions. [2021-11-23 00:47:55,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:47:55,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:47:55,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:47:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:47:55,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 00:47:55,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:47:55,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:47:55,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:47:55,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 16 states and 32 transitions. [2021-11-23 00:47:55,624 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 32 transitions. [2021-11-23 00:47:55,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:47:55,648 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:47:55,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:47:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:47:55,682 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:47:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:47:55,720 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2021-11-23 00:47:55,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:47:55 ImpRootNode [2021-11-23 00:47:55,753 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:47:55,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:47:55,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:47:55,754 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:47:55,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:47:54" (3/4) ... [2021-11-23 00:47:55,757 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:47:55,799 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_294fbe1d-566c-4ef3-a200-39a43d891f47/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:47:55,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:47:55,800 INFO L158 Benchmark]: Toolchain (without parser) took 1758.55ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 103.3MB in the beginning and 129.7MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:47:55,801 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:47:55,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.10ms. Allocated memory is still 134.2MB. Free memory was 103.1MB in the beginning and 109.0MB in the end (delta: -5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 00:47:55,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 134.2MB. Free memory was 109.0MB in the beginning and 107.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:47:55,803 INFO L158 Benchmark]: Boogie Preprocessor took 55.36ms. Allocated memory is still 134.2MB. Free memory was 107.4MB in the beginning and 106.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:47:55,803 INFO L158 Benchmark]: RCFGBuilder took 487.33ms. Allocated memory is still 134.2MB. Free memory was 106.4MB in the beginning and 92.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 00:47:55,804 INFO L158 Benchmark]: CodeCheck took 875.18ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 92.8MB in the beginning and 131.8MB in the end (delta: -39.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:47:55,805 INFO L158 Benchmark]: Witness Printer took 45.53ms. Allocated memory is still 161.5MB. Free memory was 131.8MB in the beginning and 129.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:47:55,808 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, 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, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 8 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 6 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L17] unsigned int N_COL=__VERIFIER_nondet_uint(); [L18] unsigned int j,k; [L19] int matriz[N_COL][N_LIN], maior; [L21] maior = __VERIFIER_nondet_int() [L22] j=0 VAL [j=0, maior=0, matriz={4:0}, N_COL=1, N_LIN=1] [L22] COND TRUE jmaior) [L23] k++ VAL [j=0, k=1, maior=0, matriz={4:0}, matriz[j][k]=14, N_COL=1, N_LIN=1] [L23] COND FALSE !(k