./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/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_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ae57481434c4d2d83f3418f57c937e0ced919170ca4bdab03ab9b5db6056f353 --- 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 17:06:23,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:06:23,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:06:23,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:06:23,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:06:23,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:06:23,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:06:23,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:06:23,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:06:23,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:06:23,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:06:23,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:06:23,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:06:23,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:06:23,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:06:23,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:06:23,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:06:23,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:06:23,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:06:23,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:06:23,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:06:23,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:06:23,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:06:23,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:06:23,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:06:23,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:06:23,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:06:23,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:06:23,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:06:23,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:06:23,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:06:23,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:06:23,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:06:23,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:06:23,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:06:23,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:06:23,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:06:23,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:06:23,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:06:23,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:06:23,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:06:23,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 17:06:23,800 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:06:23,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:06:23,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:06:23,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:06:23,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:06:23,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:06:23,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:06:23,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:06:23,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:06:23,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:06:23,809 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 17:06:23,809 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 17:06:23,809 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 17:06:23,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:06:23,809 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:06:23,810 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:06:23,810 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:06:23,810 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:06:23,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:06:23,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:06:23,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:06:23,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:06:23,811 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:06:23,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:06:23,812 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_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae57481434c4d2d83f3418f57c937e0ced919170ca4bdab03ab9b5db6056f353 [2022-10-17 17:06:24,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:06:24,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:06:24,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:06:24,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:06:24,149 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:06:24,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2022-10-17 17:06:24,232 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/data/796a74a73/065588b449fe4e59ad5d4d7ffac18ed8/FLAG796525010 [2022-10-17 17:06:24,781 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:06:24,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2022-10-17 17:06:24,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/data/796a74a73/065588b449fe4e59ad5d4d7ffac18ed8/FLAG796525010 [2022-10-17 17:06:25,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/data/796a74a73/065588b449fe4e59ad5d4d7ffac18ed8 [2022-10-17 17:06:25,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:06:25,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:06:25,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:06:25,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:06:25,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:06:25,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe68877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25, skipping insertion in model container [2022-10-17 17:06:25,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:06:25,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:06:25,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:06:25,502 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:06:25,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:06:25,537 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:06:25,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25 WrapperNode [2022-10-17 17:06:25,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:06:25,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:06:25,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:06:25,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:06:25,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,587 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2022-10-17 17:06:25,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:06:25,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:06:25,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:06:25,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:06:25,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,635 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:06:25,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:06:25,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:06:25,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:06:25,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:06:25" (1/1) ... [2022-10-17 17:06:25,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:06:25,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:06:25,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:06:25,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:06:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:06:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:06:25,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:06:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:06:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:06:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:06:25,822 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:06:25,825 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:06:26,109 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:06:26,183 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:06:26,183 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 17:06:26,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:26 BoogieIcfgContainer [2022-10-17 17:06:26,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:06:26,186 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:06:26,187 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:06:26,216 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:06:26,216 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:26" (1/1) ... [2022-10-17 17:06:26,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:06:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2022-10-17 17:06:26,309 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-10-17 17:06:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:06:26,312 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:26,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:06:26,539 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 17:06:26,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:06:26,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2022-10-17 17:06:26,605 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-10-17 17:06:26,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:06:26,608 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:06:26,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:06:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:06:26,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:06:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:06:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:06:26,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:06:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:06:26,765 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-10-17 17:06:26,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:06:26 ImpRootNode [2022-10-17 17:06:26,792 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:06:26,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:06:26,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:06:26,793 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:06:26,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:06:26" (3/4) ... [2022-10-17 17:06:26,796 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:06:26,830 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:06:26,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:06:26,831 INFO L158 Benchmark]: Toolchain (without parser) took 1673.22ms. Allocated memory is still 107.0MB. Free memory was 44.7MB in the beginning and 46.0MB in the end (delta: -1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:06:26,832 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:06:26,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.43ms. Allocated memory is still 107.0MB. Free memory was 44.5MB in the beginning and 80.9MB in the end (delta: -36.4MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-10-17 17:06:26,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.40ms. Allocated memory is still 107.0MB. Free memory was 80.9MB in the beginning and 79.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:06:26,834 INFO L158 Benchmark]: Boogie Preprocessor took 57.39ms. Allocated memory is still 107.0MB. Free memory was 79.2MB in the beginning and 78.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:06:26,834 INFO L158 Benchmark]: RCFGBuilder took 538.89ms. Allocated memory is still 107.0MB. Free memory was 78.2MB in the beginning and 64.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 17:06:26,835 INFO L158 Benchmark]: CodeCheck took 605.76ms. Allocated memory is still 107.0MB. Free memory was 64.5MB in the beginning and 47.4MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 17:06:26,836 INFO L158 Benchmark]: Witness Printer took 37.99ms. Allocated memory is still 107.0MB. Free memory was 47.4MB in the beginning and 46.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:06:26,838 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, 19 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; [L22] i = 0 VAL [b={2:0}, i=0] [L22] COND TRUE i < 100 [L23] CALL foo(i, b, i) [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=0, b={2:0}, b={2:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [\old(n)=0, \old(size)=0, b={2:0}, b={2:0}, i=0, n=0, size=0] [L15] a[i] VAL [\old(n)=0, \old(size)=0, b={2:0}, b={2:0}, i=0, n=0, size=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.43ms. Allocated memory is still 107.0MB. Free memory was 44.5MB in the beginning and 80.9MB in the end (delta: -36.4MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.40ms. Allocated memory is still 107.0MB. Free memory was 80.9MB in the beginning and 79.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.39ms. Allocated memory is still 107.0MB. Free memory was 79.2MB in the beginning and 78.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 538.89ms. Allocated memory is still 107.0MB. Free memory was 78.2MB in the beginning and 64.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 605.76ms. Allocated memory is still 107.0MB. Free memory was 64.5MB in the beginning and 47.4MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 37.99ms. Allocated memory is still 107.0MB. Free memory was 47.4MB in the beginning and 46.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 17:06:26,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75d85cf-c0e5-4652-ae5c-3b23c1468b90/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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(valid-deref)