./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s2iff.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_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/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_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/s2iff.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/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_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/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 3c2c79fc7da9b912a6d0a49c4075c07cb5e82cc2dc05ee24d0b572e0ac73f733 ............................................................................................................................................................................................................................................................................................................... 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 04:16:18,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:16:18,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:16:18,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:16:18,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:16:18,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:16:18,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:16:18,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:16:18,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:16:18,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:16:18,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:16:18,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:16:18,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:16:18,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:16:18,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:16:18,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:16:18,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:16:18,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:16:18,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:16:18,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:16:18,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:16:18,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:16:18,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:16:18,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:16:18,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:16:18,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:16:18,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:16:18,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:16:18,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:16:18,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:16:18,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:16:18,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:16:18,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:16:18,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:16:18,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:16:18,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:16:18,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:16:18,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:16:18,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:16:18,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:16:18,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:16:18,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:16:18,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:16:18,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:16:18,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:16:18,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:16:18,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:16:18,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:16:18,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:16:18,947 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:16:18,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:16:18,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:16:18,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:16:18,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:16:18,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:16:18,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:16:18,955 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:16:18,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:16:18,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:16:18,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:16:18,956 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:16:18,956 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:16:18,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:16:18,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:16:18,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:16:18,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:16:18,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:16:18,958 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:16:18,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:16:18,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:16:18,958 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_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c2c79fc7da9b912a6d0a49c4075c07cb5e82cc2dc05ee24d0b572e0ac73f733 [2021-10-29 04:16:19,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:16:19,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:16:19,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:16:19,276 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:16:19,277 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:16:19,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/array-fpi/s2iff.c [2021-10-29 04:16:19,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/data/55d0feed1/0210474c5cab40c2a0021057cc54715c/FLAGd783ae720 [2021-10-29 04:16:19,829 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:16:19,830 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/sv-benchmarks/c/array-fpi/s2iff.c [2021-10-29 04:16:19,842 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/data/55d0feed1/0210474c5cab40c2a0021057cc54715c/FLAGd783ae720 [2021-10-29 04:16:20,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/data/55d0feed1/0210474c5cab40c2a0021057cc54715c [2021-10-29 04:16:20,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:16:20,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:16:20,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:16:20,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:16:20,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:16:20,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9a0663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20, skipping insertion in model container [2021-10-29 04:16:20,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:16:20,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:16:20,462 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_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/sv-benchmarks/c/array-fpi/s2iff.c[588,601] [2021-10-29 04:16:20,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:16:20,500 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:16:20,512 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_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/sv-benchmarks/c/array-fpi/s2iff.c[588,601] [2021-10-29 04:16:20,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:16:20,534 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:16:20,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20 WrapperNode [2021-10-29 04:16:20,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:16:20,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:16:20,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:16:20,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:16:20,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:16:20,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:16:20,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:16:20,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:16:20,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:16:20,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:16:20,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:16:20,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:16:20,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:20" (1/1) ... [2021-10-29 04:16:20,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:16:20,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:16:20,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:16:20,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:16:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:16:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:16:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:16:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:16:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:16:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:16:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:16:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:16:21,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:16:21,247 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-29 04:16:21,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:16:21 BoogieIcfgContainer [2021-10-29 04:16:21,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:16:21,255 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:16:21,255 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:16:21,267 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:16:21,267 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:16:21" (1/1) ... [2021-10-29 04:16:21,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:16:21,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:21,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2021-10-29 04:16:21,321 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2021-10-29 04:16:21,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:16:21,323 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:21,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:21,580 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 04:16:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:21,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-10-29 04:16:21,642 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-10-29 04:16:21,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:16:21,643 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:21,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:21,726 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 04:16:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:21,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2021-10-29 04:16:21,814 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-10-29 04:16:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:16:21,815 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:21,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:21,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 04:16:21,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:21,956 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 04:16:21,977 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 04:16:22,084 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 04:16:22,312 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-10-29 04:16:22,313 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 04:16:22,474 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-29 04:16:22,475 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 56 treesize of output 40 [2021-10-29 04:16:22,521 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 04:16:23,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:23,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 17 states and 33 transitions. [2021-10-29 04:16:23,153 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 33 transitions. [2021-10-29 04:16:23,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:16:23,155 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:23,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:23,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:16:23,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:23,339 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 04:16:23,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:23,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 18 states and 33 transitions. [2021-10-29 04:16:23,615 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 33 transitions. [2021-10-29 04:16:23,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:16:23,616 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:23,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:23,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:16:23,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:23,811 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 04:16:24,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:24,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 21 states and 40 transitions. [2021-10-29 04:16:24,632 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 40 transitions. [2021-10-29 04:16:24,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:16:24,632 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:24,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:16:24,680 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:16:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:16:24,731 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2021-10-29 04:16:24,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:16:24 ImpRootNode [2021-10-29 04:16:24,762 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:16:24,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:16:24,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:16:24,763 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:16:24,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:16:21" (3/4) ... [2021-10-29 04:16:24,765 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:16:24,815 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95a2da1-627c-4d23-8eb8-6a852cc3c9fd/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:16:24,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:16:24,817 INFO L168 Benchmark]: Toolchain (without parser) took 4612.36 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 73.3 MB in the beginning and 65.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:24,818 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 107.0 MB. Free memory is still 60.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:16:24,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.73 ms. Allocated memory is still 107.0 MB. Free memory was 73.1 MB in the beginning and 80.9 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:24,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.83 ms. Allocated memory is still 107.0 MB. Free memory was 80.9 MB in the beginning and 79.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:16:24,820 INFO L168 Benchmark]: Boogie Preprocessor took 52.33 ms. Allocated memory is still 107.0 MB. Free memory was 79.3 MB in the beginning and 78.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:24,821 INFO L168 Benchmark]: RCFGBuilder took 603.51 ms. Allocated memory is still 107.0 MB. Free memory was 78.1 MB in the beginning and 63.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:24,822 INFO L168 Benchmark]: CodeCheck took 3506.47 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 63.8 MB in the beginning and 67.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:24,823 INFO L168 Benchmark]: Witness Printer took 53.55 ms. Allocated memory is still 138.4 MB. Free memory was 67.3 MB in the beginning and 65.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:24,828 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: 3.4s, 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, 704 SolverSat, 294 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 392 GetRequests, 322 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1760 ImplicationChecksByTransitivity, 1.8s 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, 189 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