./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 b5237d83 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_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba --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 --- [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-b5237d8 [2022-11-22 01:59:34,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:59:34,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:59:34,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:59:34,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:59:34,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:59:34,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:59:34,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:59:34,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:59:34,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:59:34,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:59:34,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:59:34,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:59:34,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:59:34,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:59:34,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:59:34,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:59:34,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:59:34,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:59:34,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:59:34,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:59:34,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:59:34,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:59:34,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:59:34,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:59:34,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:59:34,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:59:34,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:59:34,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:59:34,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:59:34,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:59:34,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:59:34,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:59:34,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:59:34,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:59:34,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:59:34,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:59:34,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:59:34,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:59:34,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:59:34,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:59:34,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 01:59:34,795 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:59:34,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:59:34,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:59:34,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:59:34,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:59:34,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:59:34,798 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:59:34,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:59:34,798 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:59:34,798 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:59:34,799 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:59:34,799 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:59:34,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:59:34,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:59:34,800 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:59:34,800 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:59:34,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:59:34,801 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:59:34,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:59:34,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:59:34,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:59:34,802 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:59:34,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:59:34,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:59:34,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:59:34,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:59:34,804 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:59:34,804 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:59:34,804 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:59:34,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:59:34,805 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:59:34,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:59:34,805 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:59:34,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:59:34,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:59:34,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:59:34,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:59:34,807 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:59:34,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:59:34,807 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:59:34,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:59:34,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:59:34,808 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_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d94197bb45011c55db64c4b2cad037cf69a2430f75ef8668b076bdef6ca69182 [2022-11-22 01:59:35,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:59:35,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:59:35,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:59:35,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:59:35,138 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:59:35,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2022-11-22 01:59:38,332 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:59:38,623 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:59:38,624 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2022-11-22 01:59:38,642 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/data/491b0bcef/ade41012a6ea4c79a65ad972de8ffb08/FLAGcb10f351b [2022-11-22 01:59:38,661 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/data/491b0bcef/ade41012a6ea4c79a65ad972de8ffb08 [2022-11-22 01:59:38,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:59:38,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:59:38,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:59:38,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:59:38,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:59:38,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b7e6964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:38, skipping insertion in model container [2022-11-22 01:59:38,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:59:38" (1/1) ... [2022-11-22 01:59:38,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:59:38,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:59:39,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:59:39,061 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:59:39,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:59:39,164 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:59:39,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39 WrapperNode [2022-11-22 01:59:39,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:59:39,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:59:39,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:59:39,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:59:39,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,227 INFO L138 Inliner]: procedures = 115, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2022-11-22 01:59:39,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:59:39,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:59:39,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:59:39,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:59:39,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:59:39,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:59:39,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:59:39,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:59:39,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (1/1) ... [2022-11-22 01:59:39,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:59:39,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:59:39,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:59:39,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:59:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:59:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:59:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:59:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:59:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:59:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:59:39,442 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:59:39,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:59:39,612 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:59:39,839 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:59:39,839 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:59:39,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:39 BoogieIcfgContainer [2022-11-22 01:59:39,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:59:39,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:59:39,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:59:39,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:59:39,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:59:38" (1/3) ... [2022-11-22 01:59:39,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33170c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:39, skipping insertion in model container [2022-11-22 01:59:39,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:39" (2/3) ... [2022-11-22 01:59:39,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33170c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:39, skipping insertion in model container [2022-11-22 01:59:39,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:39" (3/3) ... [2022-11-22 01:59:39,866 INFO L112 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe.i [2022-11-22 01:59:39,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:59:39,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-22 01:59:39,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:59:39,942 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e77358a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:59:39,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-22 01:59:39,947 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) [2022-11-22 01:59:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 01:59:39,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:39,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 01:59:39,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-22 01:59:39,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:39,973 INFO L85 PathProgramCache]: Analyzing trace with hash 107322, now seen corresponding path program 1 times [2022-11-22 01:59:39,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:39,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016094781] [2022-11-22 01:59:39,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:39,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:40,136 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:59:40,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8123638] [2022-11-22 01:59:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:40,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:59:40,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:59:40,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:59:40,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:59:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:40,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:59:40,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:40,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:40,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:59:40,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:40,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016094781] [2022-11-22 01:59:40,318 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:59:40,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8123638] [2022-11-22 01:59:40,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8123638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:40,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:40,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:59:40,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055968933] [2022-11-22 01:59:40,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:40,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:40,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:40,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:40,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:40,361 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) [2022-11-22 01:59:40,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:40,416 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2022-11-22 01:59:40,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:40,419 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 [2022-11-22 01:59:40,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:40,430 INFO L225 Difference]: With dead ends: 16 [2022-11-22 01:59:40,431 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 01:59:40,433 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:59:40,440 INFO L413 NwaCegarLoop]: 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 [2022-11-22 01:59:40,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:59:40,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 01:59:40,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 01:59:40,481 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) [2022-11-22 01:59:40,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-22 01:59:40,485 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 3 [2022-11-22 01:59:40,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:40,486 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-22 01:59:40,486 INFO L496 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) [2022-11-22 01:59:40,487 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-22 01:59:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:59:40,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:40,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:59:40,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:40,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 01:59:40,695 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-22 01:59:40,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:40,696 INFO L85 PathProgramCache]: Analyzing trace with hash 3327913, now seen corresponding path program 1 times [2022-11-22 01:59:40,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:40,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840983461] [2022-11-22 01:59:40,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:40,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:40,721 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:59:40,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137997116] [2022-11-22 01:59:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:40,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:59:40,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:59:40,730 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:59:40,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:59:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:59:40,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:59:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:59:40,887 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:59:40,887 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:59:40,889 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 7 remaining) [2022-11-22 01:59:40,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-22 01:59:40,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-22 01:59:40,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-22 01:59:40,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-22 01:59:40,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2022-11-22 01:59:40,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-22 01:59:40,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:41,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-22 01:59:41,096 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 01:59:41,099 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:59:41,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:59:41 BoogieIcfgContainer [2022-11-22 01:59:41,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:59:41,119 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:59:41,119 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:59:41,119 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:59:41,120 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:39" (3/4) ... [2022-11-22 01:59:41,122 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 01:59:41,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb4c25b-7bf0-4dc8-b5d4-3bf04ff05b95/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:59:41,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:59:41,164 INFO L158 Benchmark]: Toolchain (without parser) took 2494.12ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 93.1MB in the beginning and 99.8MB in the end (delta: -6.7MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2022-11-22 01:59:41,164 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory was 109.5MB in the beginning and 109.3MB in the end (delta: 169.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:59:41,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.00ms. Allocated memory is still 134.2MB. Free memory was 92.7MB in the beginning and 77.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:59:41,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.45ms. Allocated memory is still 134.2MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:59:41,166 INFO L158 Benchmark]: Boogie Preprocessor took 26.03ms. Allocated memory is still 134.2MB. Free memory was 75.3MB in the beginning and 73.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:59:41,166 INFO L158 Benchmark]: RCFGBuilder took 586.99ms. Allocated memory is still 134.2MB. Free memory was 73.6MB in the beginning and 104.0MB in the end (delta: -30.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-11-22 01:59:41,167 INFO L158 Benchmark]: TraceAbstraction took 1260.15ms. Allocated memory is still 163.6MB. Free memory was 135.4MB in the beginning and 101.9MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-22 01:59:41,168 INFO L158 Benchmark]: Witness Printer took 44.12ms. Allocated memory is still 163.6MB. Free memory was 101.9MB in the beginning and 99.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:59:41,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory was 109.5MB in the beginning and 109.3MB in the end (delta: 169.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.00ms. Allocated memory is still 134.2MB. Free memory was 92.7MB in the beginning and 77.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.45ms. Allocated memory is still 134.2MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.03ms. Allocated memory is still 134.2MB. Free memory was 75.3MB in the beginning and 73.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 586.99ms. Allocated memory is still 134.2MB. Free memory was 73.6MB in the beginning and 104.0MB in the end (delta: -30.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1260.15ms. Allocated memory is still 163.6MB. Free memory was 135.4MB in the beginning and 101.9MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 44.12ms. Allocated memory is still 163.6MB. Free memory was 101.9MB in the beginning and 99.8MB in the end (delta: 2.1MB). 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND TRUE length < 1 || length >= 2147483647 / sizeof(int) [L515] length = 1 [L516] int fac = __VERIFIER_nondet_int(); [L517] COND FALSE !(fac < 1 || fac >= 2147483647 / (sizeof(int) * length)) [L518] int *arr = __builtin_alloca (length); [L519] int *arr2 = __builtin_alloca (fac*length); VAL [__builtin_alloca (fac*length)={2:0}, __builtin_alloca (length)={3:0}, arr={3:0}, arr2={2:0}, fac=1, length=1] [L520] COND FALSE !(!arr || !arr2) [L521] i=0 VAL [__builtin_alloca (fac*length)={2:0}, __builtin_alloca (length)={3:0}, arr={3:0}, arr2={2:0}, fac=1, i=0, length=1] [L521] COND TRUE i