./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s1iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/s1iff.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI --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 1db85e7c0edb4fd41a35742a3318c79833e1ee4b0f0abb2fb59241212e3e7429 ............................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:18:24,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:18:24,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:18:24,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:18:24,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:18:24,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:18:24,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:18:24,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:18:24,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:18:24,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:18:24,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:18:24,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:18:24,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:18:24,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:18:24,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:18:24,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:18:24,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:18:24,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:18:24,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:18:24,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:18:24,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:18:24,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:18:24,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:18:24,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:18:24,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:18:24,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:18:24,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:18:24,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:18:24,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:18:24,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:18:24,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:18:24,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:18:24,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:18:24,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:18:24,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:18:24,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:18:24,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:18:24,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:18:24,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:18:24,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:18:24,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:18:24,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:18:24,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:18:24,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:18:24,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:18:24,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:18:24,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:18:24,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:18:24,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:18:24,545 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:18:24,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:18:24,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:18:24,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:18:24,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:18:24,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:18:24,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:18:24,548 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:18:24,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:18:24,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:18:24,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:18:24,549 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:18:24,550 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:18:24,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:18:24,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:18:24,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:18:24,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:18:24,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:18:24,551 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:18:24,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:18:24,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:18:24,552 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_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1db85e7c0edb4fd41a35742a3318c79833e1ee4b0f0abb2fb59241212e3e7429 [2021-10-29 04:18:24,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:18:24,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:18:24,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:18:24,928 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:18:24,930 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:18:24,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/array-fpi/s1iff.c [2021-10-29 04:18:25,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/data/9b0fc7ce7/566ea649822d4a99982d4b91f911647f/FLAGdbbfe3912 [2021-10-29 04:18:25,542 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:18:25,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/sv-benchmarks/c/array-fpi/s1iff.c [2021-10-29 04:18:25,555 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/data/9b0fc7ce7/566ea649822d4a99982d4b91f911647f/FLAGdbbfe3912 [2021-10-29 04:18:25,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/data/9b0fc7ce7/566ea649822d4a99982d4b91f911647f [2021-10-29 04:18:25,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:18:25,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:18:25,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:18:25,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:18:25,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:18:25,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:18:25" (1/1) ... [2021-10-29 04:18:25,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d02ef4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:25, skipping insertion in model container [2021-10-29 04:18:25,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:18:25" (1/1) ... [2021-10-29 04:18:25,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:18:25,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:18:26,170 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_330cd665-bf66-4175-ac03-5a0d6aedc84f/sv-benchmarks/c/array-fpi/s1iff.c[588,601] [2021-10-29 04:18:26,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:18:26,206 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:18:26,218 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_330cd665-bf66-4175-ac03-5a0d6aedc84f/sv-benchmarks/c/array-fpi/s1iff.c[588,601] [2021-10-29 04:18:26,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:18:26,262 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:18:26,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26 WrapperNode [2021-10-29 04:18:26,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:18:26,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:18:26,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:18:26,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:18:26,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:18:26,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:18:26,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:18:26,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:18:26,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:18:26,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:18:26,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:18:26,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:18:26,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:18:26,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:18:26,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:18:26,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:18:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:18:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:18:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:18:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:18:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:18:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:18:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:18:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:18:26,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:18:26,857 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-29 04:18:26,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:18:26 BoogieIcfgContainer [2021-10-29 04:18:26,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:18:26,860 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:18:26,860 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:18:26,877 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:18:26,878 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:18:26" (1/1) ... [2021-10-29 04:18:26,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:18:26,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:26,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2021-10-29 04:18:26,938 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2021-10-29 04:18:26,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:18:26,943 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:26,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:27,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:27,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-10-29 04:18:27,206 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-10-29 04:18:27,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:18:27,207 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:27,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:18:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:27,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2021-10-29 04:18:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-10-29 04:18:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:18:27,385 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:27,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:27,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 04:18:27,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:18:27,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-29 04:18:27,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-29 04:18:27,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-10-29 04:18:27,900 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-10-29 04:18:27,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 27 [2021-10-29 04:18:28,063 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-29 04:18:28,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 42 [2021-10-29 04:18:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:28,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 17 states and 32 transitions. [2021-10-29 04:18:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 32 transitions. [2021-10-29 04:18:28,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:18:28,809 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:28,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:28,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:18:28,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:18:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:29,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 18 states and 32 transitions. [2021-10-29 04:18:29,318 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 32 transitions. [2021-10-29 04:18:29,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:18:29,318 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:29,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:29,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:18:29,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:18:29,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 21 states and 39 transitions. [2021-10-29 04:18:30,447 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 39 transitions. [2021-10-29 04:18:30,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:18:30,447 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:30,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:18:30,505 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:18:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:18:30,567 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2021-10-29 04:18:30,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:18:30 ImpRootNode [2021-10-29 04:18:30,639 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:18:30,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:18:30,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:18:30,640 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:18:30,641 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:18:26" (3/4) ... [2021-10-29 04:18:30,643 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:18:30,724 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330cd665-bf66-4175-ac03-5a0d6aedc84f/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:18:30,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:18:30,725 INFO L168 Benchmark]: Toolchain (without parser) took 4834.58 ms. Allocated memory was 79.7 MB in the beginning and 123.7 MB in the end (delta: 44.0 MB). Free memory was 44.3 MB in the beginning and 70.4 MB in the end (delta: -26.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:18:30,726 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory is still 60.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:18:30,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.54 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 44.0 MB in the beginning and 73.0 MB in the end (delta: -28.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:18:30,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.07 ms. Allocated memory is still 96.5 MB. Free memory was 73.0 MB in the beginning and 71.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:18:30,728 INFO L168 Benchmark]: Boogie Preprocessor took 39.17 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 70.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:18:30,729 INFO L168 Benchmark]: RCFGBuilder took 517.67 ms. Allocated memory is still 96.5 MB. Free memory was 70.1 MB in the beginning and 55.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:18:30,729 INFO L168 Benchmark]: CodeCheck took 3779.07 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 55.8 MB in the beginning and 72.6 MB in the end (delta: -16.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:18:30,730 INFO L168 Benchmark]: Witness Printer took 84.00 ms. Allocated memory is still 123.7 MB. Free memory was 72.6 MB in the beginning and 70.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:18:30,734 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: 3.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 58 SDslu, 0 SDs, 0 SdLazy, 692 SolverSat, 290 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 388 GetRequests, 318 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1760 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 34 ConstructedInterpolants, 1 QuantifiedInterpolants, 195 SizeOfPredicates, 10 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 5/11 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 VAL [N=2] [L32] COND TRUE i