./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/skippedu.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/array-tiling/skippedu.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB --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 578aa1ed819483237cae7cb7b17bc18e9dfff9e081f63e5821fc4a918d7ba90e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:44:59,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:44:59,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:44:59,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:44:59,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:44:59,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:44:59,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:44:59,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:44:59,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:44:59,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:44:59,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:44:59,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:44:59,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:44:59,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:44:59,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:44:59,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:44:59,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:44:59,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:44:59,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:44:59,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:44:59,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:44:59,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:44:59,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:44:59,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:44:59,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:44:59,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:44:59,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:44:59,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:44:59,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:44:59,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:44:59,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:44:59,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:44:59,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:44:59,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:44:59,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:44:59,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:44:59,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:44:59,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:44:59,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:44:59,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:44:59,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:44:59,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:44:59,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:44:59,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:44:59,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:44:59,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:44:59,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:44:59,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:44:59,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:44:59,862 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:44:59,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:44:59,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:44:59,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:44:59,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:44:59,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:44:59,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:44:59,864 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:44:59,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:44:59,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:44:59,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:44:59,865 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:44:59,865 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:44:59,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:44:59,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:44:59,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:44:59,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:44:59,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:44:59,867 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:44:59,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:44:59,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:44:59,869 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_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 578aa1ed819483237cae7cb7b17bc18e9dfff9e081f63e5821fc4a918d7ba90e [2022-10-17 16:45:00,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:45:00,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:45:00,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:45:00,210 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:45:00,212 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:45:00,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/array-tiling/skippedu.c [2022-10-17 16:45:00,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/data/120a570ce/b561b4b861b44a8dbaedb1659c89e1ff/FLAG4906020fe [2022-10-17 16:45:00,752 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:45:00,752 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/sv-benchmarks/c/array-tiling/skippedu.c [2022-10-17 16:45:00,763 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/data/120a570ce/b561b4b861b44a8dbaedb1659c89e1ff/FLAG4906020fe [2022-10-17 16:45:01,148 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/data/120a570ce/b561b4b861b44a8dbaedb1659c89e1ff [2022-10-17 16:45:01,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:45:01,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:45:01,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:45:01,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:45:01,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:45:01,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee9c51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01, skipping insertion in model container [2022-10-17 16:45:01,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:45:01,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:45:01,365 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_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/sv-benchmarks/c/array-tiling/skippedu.c[399,412] [2022-10-17 16:45:01,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:45:01,395 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:45:01,416 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_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/sv-benchmarks/c/array-tiling/skippedu.c[399,412] [2022-10-17 16:45:01,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:45:01,449 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:45:01,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01 WrapperNode [2022-10-17 16:45:01,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:45:01,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:45:01,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:45:01,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:45:01,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,488 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-10-17 16:45:01,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:45:01,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:45:01,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:45:01,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:45:01,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,515 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:45:01,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:45:01,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:45:01,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:45:01,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:45:01,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:45:01,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:45:01,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:45:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:45:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:45:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:45:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:45:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:45:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:45:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:45:01,658 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:45:01,660 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:45:01,868 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:45:01,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:45:01,938 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 16:45:01,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:01 BoogieIcfgContainer [2022-10-17 16:45:01,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:45:01,941 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:45:01,942 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:45:01,952 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:45:01,953 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:01" (1/1) ... [2022-10-17 16:45:01,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:45:02,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:02,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2022-10-17 16:45:02,039 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2022-10-17 16:45:02,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:45:02,041 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:02,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:02,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2022-10-17 16:45:02,500 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2022-10-17 16:45:02,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:45:02,501 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:02,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:45:02,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:02,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2022-10-17 16:45:02,760 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2022-10-17 16:45:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:45:02,761 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:02,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:45:03,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 16:45:03,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:45:03,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2022-10-17 16:45:03,385 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2022-10-17 16:45:03,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:45:03,386 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:45:03,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:45:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:45:03,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:45:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:45:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:45:03,548 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:45:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:45:03,580 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-10-17 16:45:03,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:45:03 ImpRootNode [2022-10-17 16:45:03,614 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:45:03,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:45:03,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:45:03,615 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:45:03,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:45:01" (3/4) ... [2022-10-17 16:45:03,618 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:45:03,665 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:45:03,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:45:03,666 INFO L158 Benchmark]: Toolchain (without parser) took 2514.25ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 100.9MB in the beginning and 129.3MB in the end (delta: -28.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:45:03,667 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 138.4MB. Free memory was 108.5MB in the beginning and 108.5MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:45:03,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.70ms. Allocated memory is still 138.4MB. Free memory was 100.7MB in the beginning and 111.3MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:45:03,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.69ms. Allocated memory is still 138.4MB. Free memory was 110.6MB in the beginning and 109.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:45:03,669 INFO L158 Benchmark]: Boogie Preprocessor took 29.48ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 107.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:45:03,670 INFO L158 Benchmark]: RCFGBuilder took 420.98ms. Allocated memory is still 138.4MB. Free memory was 107.8MB in the beginning and 92.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 16:45:03,670 INFO L158 Benchmark]: CodeCheck took 1672.58ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 92.5MB in the beginning and 131.4MB in the end (delta: -38.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-10-17 16:45:03,671 INFO L158 Benchmark]: Witness Printer took 50.90ms. Allocated memory is still 180.4MB. Free memory was 131.4MB in the beginning and 129.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:45:03,674 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 21 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 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: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] int SIZE; [L14] const int MAX = 100000; [L18] SIZE = __VERIFIER_nondet_int() [L19] COND TRUE SIZE > 1 && SIZE < MAX [L21] int i; [L22] int *a = malloc(sizeof(int)*SIZE); [L24] i = 0 VAL [a={17209:0}, i=0, MAX=100000, SIZE=2] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() [L24] i++ VAL [a={17209:0}, i=1, MAX=100000, SIZE=2] [L24] COND TRUE i < SIZE [L26] a[i] = __VERIFIER_nondet_int() [L24] i++ VAL [a={17209:0}, i=2, MAX=100000, SIZE=2] [L24] COND FALSE !(i < SIZE) VAL [a={17209:0}, i=2, MAX=100000, SIZE=2] [L29] COND FALSE !(SIZE % 2 != 0) [L31] CALL assume_abort_if_not(SIZE % 2 == 0) [L6] COND FALSE !(!cond) [L31] RET assume_abort_if_not(SIZE % 2 == 0) [L32] i = 1 VAL [a={17209:0}, i=1, MAX=100000, SIZE=2] [L32] COND TRUE i <= SIZE/2 [L34] EXPR a[2*i-2] [L34] COND FALSE !(a[2*i-2] > i) [L38] EXPR a[2*i-1] [L38] COND TRUE a[2*i-1] > i [L40] a[2*i-1] = 2*i-1 [L32] i++ VAL [a={17209:0}, i=2, MAX=100000, SIZE=2] [L32] COND FALSE !(i <= SIZE/2) [L44] i = 0 VAL [a={17209:0}, i=0, MAX=100000, SIZE=2] [L44] COND TRUE i < SIZE [L46] EXPR a[i] [L46] CALL __VERIFIER_assert( a[i] <= i ) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, MAX=100000, SIZE=2] [L8] reach_error() VAL [\old(cond)=0, cond=0, MAX=100000, SIZE=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 138.4MB. Free memory was 108.5MB in the beginning and 108.5MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.70ms. Allocated memory is still 138.4MB. Free memory was 100.7MB in the beginning and 111.3MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.69ms. Allocated memory is still 138.4MB. Free memory was 110.6MB in the beginning and 109.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.48ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 107.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 420.98ms. Allocated memory is still 138.4MB. Free memory was 107.8MB in the beginning and 92.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1672.58ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 92.5MB in the beginning and 131.4MB in the end (delta: -38.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 50.90ms. Allocated memory is still 180.4MB. Free memory was 131.4MB in the beginning and 129.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:45:03,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c2b3ae-ce76-4635-8c72-6b7d826c8a4e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE