./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefInLoop1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefInLoop1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4 --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 0c9e9bbe7dcc8bff15d80e0cdda24a07d629fdcc505b89526a3de5ae567627e5 --- 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-2329fc7 [2022-12-14 21:45:26,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:45:26,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:45:26,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:45:26,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:45:26,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:45:26,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:45:26,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:45:26,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:45:26,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:45:26,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:45:26,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:45:26,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:45:26,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:45:26,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:45:26,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:45:26,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:45:26,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:45:26,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:45:26,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:45:26,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:45:26,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:45:26,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:45:26,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:45:26,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:45:26,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:45:26,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:45:26,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:45:26,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:45:26,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:45:26,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:45:26,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:45:26,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:45:26,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:45:26,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:45:26,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:45:26,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:45:26,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:45:26,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:45:26,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:45:26,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:45:26,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-12-14 21:45:26,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:45:26,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:45:26,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:45:26,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:45:26,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:45:26,709 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 21:45:26,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 21:45:26,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:45:26,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 21:45:26,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:45:26,710 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 21:45:26,710 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 21:45:26,710 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 21:45:26,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:45:26,710 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 21:45:26,710 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:45:26,711 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:45:26,711 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:45:26,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:45:26,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:45:26,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:45:26,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:45:26,712 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:45:26,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:45:26,712 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_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c9e9bbe7dcc8bff15d80e0cdda24a07d629fdcc505b89526a3de5ae567627e5 [2022-12-14 21:45:26,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:45:26,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:45:26,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:45:26,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:45:26,930 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:45:26,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/memsafety-ext3/derefInLoop1.c [2022-12-14 21:45:29,467 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:45:29,611 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:45:29,611 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/sv-benchmarks/c/memsafety-ext3/derefInLoop1.c [2022-12-14 21:45:29,615 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/data/22bb12e23/31e14b980ea841969dc2d1415fad77c4/FLAGb7db0394b [2022-12-14 21:45:29,626 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/data/22bb12e23/31e14b980ea841969dc2d1415fad77c4 [2022-12-14 21:45:29,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:45:29,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:45:29,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:45:29,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:45:29,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:45:29,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641b5530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29, skipping insertion in model container [2022-12-14 21:45:29,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:45:29,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:45:29,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:45:29,754 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:45:29,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:45:29,773 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:45:29,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29 WrapperNode [2022-12-14 21:45:29,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:45:29,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:45:29,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:45:29,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:45:29,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,800 INFO L138 Inliner]: procedures = 7, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-12-14 21:45:29,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:45:29,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:45:29,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:45:29,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:45:29,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,816 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:45:29,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:45:29,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:45:29,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:45:29,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:29" (1/1) ... [2022-12-14 21:45:29,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:45:29,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:45:29,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:45:29,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:45:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 21:45:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:45:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:45:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 21:45:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 21:45:29,930 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:45:29,932 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:45:29,999 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:45:30,009 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:45:30,009 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 21:45:30,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:45:30 BoogieIcfgContainer [2022-12-14 21:45:30,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:45:30,012 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:45:30,012 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:45:30,019 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:45:30,019 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:45:30" (1/1) ... [2022-12-14 21:45:30,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:45:30,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:45:30,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2022-12-14 21:45:30,062 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-12-14 21:45:30,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 21:45:30,063 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:45:30,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:45:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:45:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:45:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:45:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2022-12-14 21:45:30,184 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-12-14 21:45:30,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 21:45:30,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:45:30,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:45:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:45:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:45:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:45:30,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2022-12-14 21:45:30,222 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 21:45:30,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 21:45:30,223 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:45:30,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:45:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:45:30,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:45:30,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:45:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-12-14 21:45:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 21:45:30,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 21:45:30,329 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:45:30,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:45:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:45:30,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 21:45:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:45:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:45:30,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 21:45:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 21:45:30,405 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-12-14 21:45:30,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 09:45:30 ImpRootNode [2022-12-14 21:45:30,422 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 21:45:30,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 21:45:30,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 21:45:30,423 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 21:45:30,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:45:30" (3/4) ... [2022-12-14 21:45:30,424 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 21:45:30,448 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 21:45:30,448 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 21:45:30,449 INFO L158 Benchmark]: Toolchain (without parser) took 820.37ms. Allocated memory is still 140.5MB. Free memory was 106.2MB in the beginning and 58.9MB in the end (delta: 47.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-12-14 21:45:30,449 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory was 112.0MB in the beginning and 112.0MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:45:30,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.77ms. Allocated memory is still 140.5MB. Free memory was 105.6MB in the beginning and 96.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 21:45:30,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.15ms. Allocated memory is still 140.5MB. Free memory was 96.6MB in the beginning and 95.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:45:30,450 INFO L158 Benchmark]: Boogie Preprocessor took 16.35ms. Allocated memory is still 140.5MB. Free memory was 95.0MB in the beginning and 94.2MB in the end (delta: 819.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:45:30,451 INFO L158 Benchmark]: RCFGBuilder took 193.18ms. Allocated memory is still 140.5MB. Free memory was 93.6MB in the beginning and 84.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 21:45:30,451 INFO L158 Benchmark]: CodeCheck took 410.24ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 60.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-14 21:45:30,451 INFO L158 Benchmark]: Witness Printer took 25.96ms. Allocated memory is still 140.5MB. Free memory was 60.6MB in the beginning and 58.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:45:30,453 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, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 9 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L3] int i = 0; VAL [i=0] [L3] COND TRUE i < 2 [L4] int a[10]; VAL [a={2:0}, i=0] [L5] COND TRUE i == 0 [L6] p = a VAL [a={2:0}, i=0, p={2:0}] [L3] i++ [L3] COND TRUE i < 2 [L4] int a[10]; VAL [a={3:0}, i=1, p={2:0}] [L5] COND FALSE !(i == 0) VAL [a={3:0}, i=1, p={2:0}] [L8] p[0] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory was 112.0MB in the beginning and 112.0MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.77ms. Allocated memory is still 140.5MB. Free memory was 105.6MB in the beginning and 96.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.15ms. Allocated memory is still 140.5MB. Free memory was 96.6MB in the beginning and 95.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.35ms. Allocated memory is still 140.5MB. Free memory was 95.0MB in the beginning and 94.2MB in the end (delta: 819.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 193.18ms. Allocated memory is still 140.5MB. Free memory was 93.6MB in the beginning and 84.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 410.24ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 60.6MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 25.96ms. Allocated memory is still 140.5MB. Free memory was 60.6MB in the beginning and 58.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 21:45:30,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93618e29-2e97-4602-8d5e-3b7b4d25e999/bin/ukojak-rkRKPMF4O4/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(valid-deref)