./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d94197bb45011c55db64c4b2cad037cf69a2430f75ef8668b076bdef6ca69182 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:01:32,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:01:32,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:01:32,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:01:32,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:01:32,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:01:32,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:01:32,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:01:32,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:01:32,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:01:32,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:01:32,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:01:32,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:01:32,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:01:32,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:01:32,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:01:32,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:01:32,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:01:32,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:01:32,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:01:32,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:01:32,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:01:32,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:01:32,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:01:32,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:01:32,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:01:32,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:01:32,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:01:32,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:01:32,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:01:32,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:01:32,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:01:32,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:01:32,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:01:32,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:01:32,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:01:32,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:01:32,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:01:32,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:01:32,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:01:32,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:01:32,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-25 20:01:32,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:01:32,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:01:32,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:01:32,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:01:32,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:01:32,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:01:32,809 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:01:32,809 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:01:32,809 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:01:32,809 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:01:32,810 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:01:32,810 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:01:32,811 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:01:32,811 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:01:32,811 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:01:32,811 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:01:32,811 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:01:32,812 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:01:32,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 20:01:32,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 20:01:32,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:01:32,813 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:01:32,813 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:01:32,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:01:32,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:01:32,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:01:32,815 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 20:01:32,815 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 20:01:32,815 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 20:01:32,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:01:32,816 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 20:01:32,816 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:01:32,816 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:01:32,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:01:32,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:01:32,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:01:32,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:01:32,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:01:32,818 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:01:32,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:01:32,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:01:32,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:01:32,818 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d94197bb45011c55db64c4b2cad037cf69a2430f75ef8668b076bdef6ca69182 [2021-11-25 20:01:33,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:01:33,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:01:33,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:01:33,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:01:33,155 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:01:33,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2021-11-25 20:01:33,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/data/50aca8de7/fc6fdd016e284495b77faa2f3511ac82/FLAG0f824f3f9 [2021-11-25 20:01:33,854 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:01:33,855 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2021-11-25 20:01:33,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/data/50aca8de7/fc6fdd016e284495b77faa2f3511ac82/FLAG0f824f3f9 [2021-11-25 20:01:34,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/data/50aca8de7/fc6fdd016e284495b77faa2f3511ac82 [2021-11-25 20:01:34,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:01:34,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:01:34,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:01:34,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:01:34,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:01:34,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa7038b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34, skipping insertion in model container [2021-11-25 20:01:34,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:01:34,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:01:34,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:01:34,525 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:01:34,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:01:34,622 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:01:34,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34 WrapperNode [2021-11-25 20:01:34,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:01:34,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:01:34,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:01:34,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:01:34,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,690 INFO L137 Inliner]: procedures = 115, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2021-11-25 20:01:34,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:01:34,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:01:34,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:01:34,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:01:34,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:01:34,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:01:34,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:01:34,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:01:34,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (1/1) ... [2021-11-25 20:01:34,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:01:34,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:01:34,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:01:34,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:01:34,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:01:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:01:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:01:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:01:34,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:01:34,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:01:34,920 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:01:34,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:01:35,080 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:01:35,141 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:01:35,141 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 20:01:35,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:01:35 BoogieIcfgContainer [2021-11-25 20:01:35,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:01:35,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:01:35,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:01:35,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:01:35,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:01:34" (1/3) ... [2021-11-25 20:01:35,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416b5f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:01:35, skipping insertion in model container [2021-11-25 20:01:35,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:34" (2/3) ... [2021-11-25 20:01:35,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416b5f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:01:35, skipping insertion in model container [2021-11-25 20:01:35,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:01:35" (3/3) ... [2021-11-25 20:01:35,152 INFO L111 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe.i [2021-11-25 20:01:35,157 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:01:35,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-25 20:01:35,203 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:01:35,210 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:01:35,210 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-25 20:01:35,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 8 states have (on average 2.25) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:35,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 20:01:35,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:01:35,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 20:01:35,233 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 3 more)] === [2021-11-25 20:01:35,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:01:35,239 INFO L85 PathProgramCache]: Analyzing trace with hash 107322, now seen corresponding path program 1 times [2021-11-25 20:01:35,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:01:35,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830953557] [2021-11-25 20:01:35,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:35,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:01:35,357 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:01:35,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [351968260] [2021-11-25 20:01:35,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:35,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:01:35,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:01:35,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:01:35,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:01:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:01:35,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:01:35,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:01:35,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:01:35,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:01:35,532 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:01:35,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830953557] [2021-11-25 20:01:35,533 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:01:35,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351968260] [2021-11-25 20:01:35,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351968260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:01:35,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:01:35,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:01:35,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418907478] [2021-11-25 20:01:35,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:01:35,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:01:35,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:01:35,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:01:35,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:01:35,577 INFO L87 Difference]: Start difference. First operand has 16 states, 8 states have (on average 2.25) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:35,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:01:35,633 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-11-25 20:01:35,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:01:35,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-25 20:01:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:01:35,644 INFO L225 Difference]: With dead ends: 16 [2021-11-25 20:01:35,644 INFO L226 Difference]: Without dead ends: 15 [2021-11-25 20:01:35,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:01:35,650 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:01:35,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 3 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:01:35,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-25 20:01:35,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-25 20:01:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 8 states have (on average 2.0) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-25 20:01:35,686 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 3 [2021-11-25 20:01:35,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:01:35,686 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-25 20:01:35,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:35,687 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-25 20:01:35,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 20:01:35,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:01:35,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 20:01:35,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 20:01:35,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-25 20:01:35,914 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 3 more)] === [2021-11-25 20:01:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:01:35,915 INFO L85 PathProgramCache]: Analyzing trace with hash 3327913, now seen corresponding path program 1 times [2021-11-25 20:01:35,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:01:35,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820811692] [2021-11-25 20:01:35,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:35,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:01:35,926 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:01:35,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711051596] [2021-11-25 20:01:35,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:35,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:01:35,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:01:35,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:01:35,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:01:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:01:36,049 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:01:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:01:36,136 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:01:36,137 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:01:36,138 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (6 of 7 remaining) [2021-11-25 20:01:36,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (5 of 7 remaining) [2021-11-25 20:01:36,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (4 of 7 remaining) [2021-11-25 20:01:36,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (3 of 7 remaining) [2021-11-25 20:01:36,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (2 of 7 remaining) [2021-11-25 20:01:36,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (1 of 7 remaining) [2021-11-25 20:01:36,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2021-11-25 20:01:36,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:01:36,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:01:36,349 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 20:01:36,352 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 20:01:36,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:01:36 BoogieIcfgContainer [2021-11-25 20:01:36,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 20:01:36,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 20:01:36,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 20:01:36,368 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 20:01:36,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:01:35" (3/4) ... [2021-11-25 20:01:36,371 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 20:01:36,415 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da02ddb-20cb-4db4-83aa-baeeb2d116e1/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 20:01:36,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 20:01:36,420 INFO L158 Benchmark]: Toolchain (without parser) took 2291.25ms. Allocated memory is still 138.4MB. Free memory was 97.2MB in the beginning and 54.4MB in the end (delta: 42.8MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2021-11-25 20:01:36,424 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory was 114.8MB in the beginning and 114.8MB in the end (delta: 15.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:01:36,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.44ms. Allocated memory is still 138.4MB. Free memory was 97.0MB in the beginning and 105.6MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 20:01:36,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.89ms. Allocated memory is still 138.4MB. Free memory was 105.6MB in the beginning and 103.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 20:01:36,427 INFO L158 Benchmark]: Boogie Preprocessor took 51.79ms. Allocated memory is still 138.4MB. Free memory was 103.4MB in the beginning and 102.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:01:36,428 INFO L158 Benchmark]: RCFGBuilder took 399.15ms. Allocated memory is still 138.4MB. Free memory was 102.3MB in the beginning and 88.4MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-25 20:01:36,429 INFO L158 Benchmark]: TraceAbstraction took 1222.17ms. Allocated memory is still 138.4MB. Free memory was 88.0MB in the beginning and 56.2MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-25 20:01:36,429 INFO L158 Benchmark]: Witness Printer took 51.64ms. Allocated memory is still 138.4MB. Free memory was 56.2MB in the beginning and 54.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 20:01:36,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory was 114.8MB in the beginning and 114.8MB in the end (delta: 15.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.44ms. Allocated memory is still 138.4MB. Free memory was 97.0MB in the beginning and 105.6MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.89ms. Allocated memory is still 138.4MB. Free memory was 105.6MB in the beginning and 103.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.79ms. Allocated memory is still 138.4MB. Free memory was 103.4MB in the beginning and 102.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 399.15ms. Allocated memory is still 138.4MB. Free memory was 102.3MB in the beginning and 88.4MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1222.17ms. Allocated memory is still 138.4MB. Free memory was 88.0MB in the beginning and 56.2MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 51.64ms. Allocated memory is still 138.4MB. Free memory was 56.2MB in the beginning and 54.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 522]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND FALSE !(length < 1 || length >= 2147483647 / sizeof(int)) [L516] int fac = __VERIFIER_nondet_int(); [L517] COND TRUE fac < 1 || fac >= 2147483647 / (sizeof(int) * length) [L517] fac = 1 [L518] int *arr = __builtin_alloca (length); [L519] int *arr2 = __builtin_alloca (fac*length); VAL [__builtin_alloca (fac*length)={3:0}, __builtin_alloca (length)={2:0}, arr={2:0}, arr2={3:0}, fac=1, length=3] [L520] COND FALSE !(!arr || !arr2) [L521] i=0 VAL [__builtin_alloca (fac*length)={3:0}, __builtin_alloca (length)={2:0}, arr={2:0}, arr2={3:0}, fac=1, i=0, length=3] [L521] COND TRUE i