./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/loops/matrix-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/loops/matrix-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1414fc78e8c6ff23892599c2d6eff3c1d8d515ca94035045b938b2c8c402305b --- 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-8393723 [2022-11-18 21:05:52,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:05:52,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:05:52,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:05:52,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:05:52,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:05:52,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:05:52,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:05:52,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:05:52,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:05:52,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:05:52,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:05:52,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:05:52,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:05:52,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:05:52,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:05:52,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:05:52,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:05:52,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:05:52,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:05:52,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:05:52,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:05:52,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:05:52,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:05:52,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:05:52,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:05:52,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:05:52,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:05:52,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:05:52,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:05:52,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:05:52,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:05:52,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:05:52,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:05:52,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:05:52,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:05:52,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:05:52,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:05:52,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:05:52,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:05:52,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:05:52,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 21:05:52,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:05:52,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:05:52,770 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:05:52,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:05:52,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:05:52,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:05:52,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:05:52,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:05:52,772 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:05:52,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:05:52,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:05:52,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:05:52,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:05:52,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:05:52,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:05:52,775 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 21:05:52,775 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 21:05:52,775 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 21:05:52,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:05:52,775 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 21:05:52,775 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:05:52,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:05:52,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:05:52,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:05:52,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:05:52,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:05:52,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:05:52,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:05:52,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:05:52,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:05:52,779 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_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1414fc78e8c6ff23892599c2d6eff3c1d8d515ca94035045b938b2c8c402305b [2022-11-18 21:05:53,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:05:53,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:05:53,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:05:53,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:05:53,120 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:05:53,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loops/matrix-2.c [2022-11-18 21:05:53,199 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/data/f1f263d70/27c28d7fba8c4a18ae644dbfdd5a1afc/FLAG26d9c0f7b [2022-11-18 21:05:53,710 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:05:53,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/sv-benchmarks/c/loops/matrix-2.c [2022-11-18 21:05:53,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/data/f1f263d70/27c28d7fba8c4a18ae644dbfdd5a1afc/FLAG26d9c0f7b [2022-11-18 21:05:54,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/data/f1f263d70/27c28d7fba8c4a18ae644dbfdd5a1afc [2022-11-18 21:05:54,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:05:54,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:05:54,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:05:54,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:05:54,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:05:54,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f73d1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54, skipping insertion in model container [2022-11-18 21:05:54,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:05:54,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:05:54,365 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/sv-benchmarks/c/loops/matrix-2.c[320,333] [2022-11-18 21:05:54,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:05:54,414 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:05:54,434 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/sv-benchmarks/c/loops/matrix-2.c[320,333] [2022-11-18 21:05:54,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:05:54,472 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:05:54,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54 WrapperNode [2022-11-18 21:05:54,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:05:54,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:05:54,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:05:54,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:05:54,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,536 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-11-18 21:05:54,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:05:54,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:05:54,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:05:54,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:05:54,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,569 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:05:54,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:05:54,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:05:54,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:05:54,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (1/1) ... [2022-11-18 21:05:54,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:05:54,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:54,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:05:54,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:05:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:05:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:05:54,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:05:54,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:05:54,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:05:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:05:54,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:05:54,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:05:54,775 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:05:54,778 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:05:55,112 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:05:55,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:05:55,120 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 21:05:55,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:05:55 BoogieIcfgContainer [2022-11-18 21:05:55,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:05:55,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:05:55,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:05:55,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:05:55,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:05:54" (1/3) ... [2022-11-18 21:05:55,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d7cc74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:05:55, skipping insertion in model container [2022-11-18 21:05:55,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:05:54" (2/3) ... [2022-11-18 21:05:55,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d7cc74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:05:55, skipping insertion in model container [2022-11-18 21:05:55,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:05:55" (3/3) ... [2022-11-18 21:05:55,134 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2022-11-18 21:05:55,155 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:05:55,155 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-18 21:05:55,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:05:55,251 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;@5afd9a0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:05:55,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 21:05:55,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 25 states have (on average 1.8) internal successors, (45), 35 states have internal predecessors, (45), 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) [2022-11-18 21:05:55,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 21:05:55,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:05:55,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 21:05:55,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:05:55,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:55,289 INFO L85 PathProgramCache]: Analyzing trace with hash 28698921, now seen corresponding path program 1 times [2022-11-18 21:05:55,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:55,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995459012] [2022-11-18 21:05:55,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:55,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:55,425 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 21:05:55,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563160383] [2022-11-18 21:05:55,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:55,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:55,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:55,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:05:55,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 21:05:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:05:55,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 21:05:55,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:05:55,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 21:05:55,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:05:55,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:05:55,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:05:55,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995459012] [2022-11-18 21:05:55,623 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 21:05:55,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563160383] [2022-11-18 21:05:55,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563160383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:05:55,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:05:55,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:05:55,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876821078] [2022-11-18 21:05:55,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:05:55,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:05:55,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:05:55,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:05:55,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:05:55,669 INFO L87 Difference]: Start difference. First operand has 36 states, 25 states have (on average 1.8) internal successors, (45), 35 states have internal predecessors, (45), 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, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-18 21:05:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:05:55,728 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-11-18 21:05:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:05:55,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-18 21:05:55,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:05:55,741 INFO L225 Difference]: With dead ends: 32 [2022-11-18 21:05:55,741 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 21:05:55,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:05:55,747 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:05:55,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 28 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:05:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 21:05:55,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 21:05:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 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) [2022-11-18 21:05:55,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-18 21:05:55,793 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 5 [2022-11-18 21:05:55,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:05:55,794 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-18 21:05:55,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-18 21:05:55,795 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-18 21:05:55,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 21:05:55,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:05:55,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 21:05:55,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:05:56,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-18 21:05:56,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:05:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:05:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash 28698922, now seen corresponding path program 1 times [2022-11-18 21:05:56,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:05:56,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327324830] [2022-11-18 21:05:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:56,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:05:56,025 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 21:05:56,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029825088] [2022-11-18 21:05:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:05:56,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:56,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:05:56,035 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:05:56,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 21:05:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:05:56,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:05:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:05:56,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:05:56,203 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:05:56,204 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 10 remaining) [2022-11-18 21:05:56,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2022-11-18 21:05:56,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-18 21:05:56,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-18 21:05:56,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-18 21:05:56,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-11-18 21:05:56,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 10 remaining) [2022-11-18 21:05:56,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 10 remaining) [2022-11-18 21:05:56,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (1 of 10 remaining) [2022-11-18 21:05:56,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-18 21:05:56,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:05:56,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:05:56,422 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 21:05:56,427 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:05:56,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:05:56 BoogieIcfgContainer [2022-11-18 21:05:56,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:05:56,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:05:56,464 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:05:56,464 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:05:56,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:05:55" (3/4) ... [2022-11-18 21:05:56,468 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 21:05:56,527 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60a7e50-0b64-4032-a9fa-fc1377201573/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:05:56,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:05:56,529 INFO L158 Benchmark]: Toolchain (without parser) took 2462.69ms. Allocated memory is still 125.8MB. Free memory was 89.5MB in the beginning and 46.8MB in the end (delta: 42.6MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2022-11-18 21:05:56,532 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:05:56,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.76ms. Allocated memory is still 125.8MB. Free memory was 89.3MB in the beginning and 100.4MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:05:56,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.01ms. Allocated memory is still 125.8MB. Free memory was 100.4MB in the beginning and 98.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:05:56,534 INFO L158 Benchmark]: Boogie Preprocessor took 34.89ms. Allocated memory is still 125.8MB. Free memory was 98.9MB in the beginning and 97.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:05:56,534 INFO L158 Benchmark]: RCFGBuilder took 548.89ms. Allocated memory is still 125.8MB. Free memory was 97.7MB in the beginning and 82.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 21:05:56,535 INFO L158 Benchmark]: TraceAbstraction took 1338.14ms. Allocated memory is still 125.8MB. Free memory was 81.6MB in the beginning and 48.6MB in the end (delta: 33.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-18 21:05:56,535 INFO L158 Benchmark]: Witness Printer took 64.08ms. Allocated memory is still 125.8MB. Free memory was 48.0MB in the beginning and 46.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:05:56,540 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.76ms. Allocated memory is still 125.8MB. Free memory was 89.3MB in the beginning and 100.4MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.01ms. Allocated memory is still 125.8MB. Free memory was 100.4MB in the beginning and 98.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.89ms. Allocated memory is still 125.8MB. Free memory was 98.9MB in the beginning and 97.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.89ms. Allocated memory is still 125.8MB. Free memory was 97.7MB in the beginning and 82.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1338.14ms. Allocated memory is still 125.8MB. Free memory was 81.6MB in the beginning and 48.6MB in the end (delta: 33.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 64.08ms. Allocated memory is still 125.8MB. Free memory was 48.0MB in the beginning and 46.8MB in the end (delta: 1.2MB). There was no memory consumed. 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: [L16] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L17] unsigned int N_COL=__VERIFIER_nondet_uint(); [L18] unsigned int j,k; [L19] int matriz[N_COL][N_LIN], maior; [L21] maior = __VERIFIER_nondet_int() [L22] j=0 VAL [j=0, maior=-2147483648, matriz={4:0}, N_COL=2, N_LIN=3758096384] [L22] COND TRUE j