./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/test03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/test03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS --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 b0461c64dd33aab490c540600717644b0e8e89b40b72a49b75f3cca81071b4ad --- 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 [2022-11-19 07:58:53,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:58:53,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:58:53,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:58:53,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:58:53,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:58:53,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:58:53,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:58:53,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:58:53,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:58:53,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:58:53,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:58:53,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:58:53,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:58:53,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:58:53,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:58:53,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:58:53,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:58:53,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:58:53,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:58:53,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:58:53,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:58:53,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:58:53,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:58:53,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:58:53,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:58:53,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:58:53,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:58:53,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:58:53,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:58:53,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:58:53,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:58:53,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:58:53,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:58:53,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:58:53,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:58:53,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:58:53,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:58:53,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:58:53,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:58:53,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:58:53,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 07:58:53,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:58:53,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:58:53,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:58:53,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:58:53,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:58:53,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:58:53,888 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:58:53,888 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:58:53,888 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:58:53,888 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:58:53,890 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:58:53,890 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:58:53,891 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:58:53,891 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:58:53,891 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:58:53,892 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:58:53,892 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:58:53,892 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:58:53,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 07:58:53,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 07:58:53,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:58:53,894 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:58:53,896 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:58:53,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:58:53,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:58:53,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:58:53,897 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 07:58:53,897 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 07:58:53,898 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 07:58:53,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:58:53,898 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:58:53,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:58:53,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:58:53,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:58:53,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:58:53,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:53,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:58:53,900 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:58:53,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:58:53,901 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:58:53,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:58:53,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:58:53,902 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_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0461c64dd33aab490c540600717644b0e8e89b40b72a49b75f3cca81071b4ad [2022-11-19 07:58:54,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:58:54,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:58:54,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:58:54,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:58:54,297 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:58:54,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-regression/test03.c [2022-11-19 07:58:54,404 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/data/ef20fa6cf/b9edc0578a59453e949c64ab03225e22/FLAG13a1464f4 [2022-11-19 07:58:55,030 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:58:55,031 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/sv-benchmarks/c/ldv-regression/test03.c [2022-11-19 07:58:55,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/data/ef20fa6cf/b9edc0578a59453e949c64ab03225e22/FLAG13a1464f4 [2022-11-19 07:58:55,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/data/ef20fa6cf/b9edc0578a59453e949c64ab03225e22 [2022-11-19 07:58:55,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:58:55,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:58:55,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:55,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:58:55,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:58:55,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8577bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55, skipping insertion in model container [2022-11-19 07:58:55,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:58:55,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:58:55,765 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_d0e270a1-5690-477a-b9aa-7120c93d04cb/sv-benchmarks/c/ldv-regression/test03.c[477,490] [2022-11-19 07:58:55,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:55,793 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:58:55,812 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_d0e270a1-5690-477a-b9aa-7120c93d04cb/sv-benchmarks/c/ldv-regression/test03.c[477,490] [2022-11-19 07:58:55,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:55,833 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:58:55,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55 WrapperNode [2022-11-19 07:58:55,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:55,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:55,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:58:55,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:58:55,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,881 INFO L138 Inliner]: procedures = 13, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-11-19 07:58:55,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:55,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:58:55,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:58:55,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:58:55,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,927 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:58:55,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:58:55,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:58:55,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:58:55,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (1/1) ... [2022-11-19 07:58:55,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:55,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:55,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:58:55,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:58:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:58:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:58:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:58:56,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:58:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:58:56,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:58:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:58:56,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:58:56,162 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:58:56,165 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:58:56,376 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:58:56,408 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:58:56,408 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:58:56,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:56 BoogieIcfgContainer [2022-11-19 07:58:56,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:58:56,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:58:56,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:58:56,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:58:56,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:55" (1/3) ... [2022-11-19 07:58:56,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaab58c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:56, skipping insertion in model container [2022-11-19 07:58:56,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:55" (2/3) ... [2022-11-19 07:58:56,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaab58c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:56, skipping insertion in model container [2022-11-19 07:58:56,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:56" (3/3) ... [2022-11-19 07:58:56,435 INFO L112 eAbstractionObserver]: Analyzing ICFG test03.c [2022-11-19 07:58:56,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:58:56,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-19 07:58:56,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:58:56,604 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;@595f67ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:58:56,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-19 07:58:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 12 states have internal predecessors, (13), 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) [2022-11-19 07:58:56,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 07:58:56,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:56,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 07:58:56,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-19 07:58:56,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:56,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1773, now seen corresponding path program 1 times [2022-11-19 07:58:56,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:56,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461154320] [2022-11-19 07:58:56,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:56,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:57,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:58:57,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:58:57,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461154320] [2022-11-19 07:58:57,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461154320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:57,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:57,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:58:57,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103056397] [2022-11-19 07:58:57,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:57,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:58:57,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:58:57,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:58:57,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:58:57,139 INFO L87 Difference]: Start difference. First operand has 13 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 12 states have internal predecessors, (13), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-19 07:58:57,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:57,183 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-11-19 07:58:57,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:58:57,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-19 07:58:57,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:57,196 INFO L225 Difference]: With dead ends: 11 [2022-11-19 07:58:57,197 INFO L226 Difference]: Without dead ends: 10 [2022-11-19 07:58:57,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:58:57,203 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:57,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:58:57,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-19 07:58:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-19 07:58:57,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 6 states have (on average 1.5) internal successors, (9), 9 states have internal predecessors, (9), 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) [2022-11-19 07:58:57,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-11-19 07:58:57,245 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 2 [2022-11-19 07:58:57,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:57,245 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-11-19 07:58:57,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-19 07:58:57,246 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-11-19 07:58:57,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 07:58:57,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:57,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 07:58:57,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:58:57,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-19 07:58:57,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1774, now seen corresponding path program 1 times [2022-11-19 07:58:57,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:57,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868711194] [2022-11-19 07:58:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:57,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:58:57,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:58:57,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868711194] [2022-11-19 07:58:57,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868711194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:57,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:57,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:58:57,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359646099] [2022-11-19 07:58:57,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:57,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:58:57,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:58:57,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:58:57,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:58:57,576 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-19 07:58:57,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:57,594 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-11-19 07:58:57,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:58:57,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-19 07:58:57,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:57,596 INFO L225 Difference]: With dead ends: 8 [2022-11-19 07:58:57,597 INFO L226 Difference]: Without dead ends: 8 [2022-11-19 07:58:57,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:58:57,599 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:57,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:58:57,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-19 07:58:57,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-19 07:58:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 7 states have internal predecessors, (7), 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) [2022-11-19 07:58:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2022-11-19 07:58:57,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 2 [2022-11-19 07:58:57,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:57,605 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2022-11-19 07:58:57,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-19 07:58:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-11-19 07:58:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:58:57,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:57,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:58:57,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:58:57,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-19 07:58:57,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:57,608 INFO L85 PathProgramCache]: Analyzing trace with hash 53364847, now seen corresponding path program 1 times [2022-11-19 07:58:57,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:57,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577608870] [2022-11-19 07:58:57,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:57,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:57,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:58:57,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:58:57,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577608870] [2022-11-19 07:58:57,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577608870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:57,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:57,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:58:57,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900909194] [2022-11-19 07:58:57,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:57,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:58:57,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:58:57,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:58:57,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:58:57,884 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) 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) [2022-11-19 07:58:57,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:57,901 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2022-11-19 07:58:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:58:57,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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 [2022-11-19 07:58:57,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:57,903 INFO L225 Difference]: With dead ends: 7 [2022-11-19 07:58:57,903 INFO L226 Difference]: Without dead ends: 6 [2022-11-19 07:58:57,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:58:57,906 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:57,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:58:57,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-19 07:58:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-19 07:58:57,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 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) [2022-11-19 07:58:57,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2022-11-19 07:58:57,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2022-11-19 07:58:57,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:57,910 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2022-11-19 07:58:57,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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) [2022-11-19 07:58:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2022-11-19 07:58:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:58:57,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:57,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:58:57,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:58:57,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-19 07:58:57,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:57,913 INFO L85 PathProgramCache]: Analyzing trace with hash 53364782, now seen corresponding path program 1 times [2022-11-19 07:58:57,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:57,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924227008] [2022-11-19 07:58:57,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:57,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:58:58,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:58:58,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924227008] [2022-11-19 07:58:58,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924227008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:58,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:58,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:58:58,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929347519] [2022-11-19 07:58:58,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:58,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:58:58,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:58:58,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:58:58,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:58:58,131 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 4 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) [2022-11-19 07:58:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:58,157 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2022-11-19 07:58:58,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:58:58,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 4 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 [2022-11-19 07:58:58,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:58,158 INFO L225 Difference]: With dead ends: 4 [2022-11-19 07:58:58,159 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:58:58,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:58:58,161 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:58,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:58:58,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:58:58,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:58:58,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-19 07:58:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:58:58,163 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-19 07:58:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:58,163 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:58:58,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 4 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) [2022-11-19 07:58:58,164 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:58:58,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:58:58,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2022-11-19 07:58:58,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-19 07:58:58,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-19 07:58:58,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2022-11-19 07:58:58,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2022-11-19 07:58:58,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-11-19 07:58:58,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:58:58,174 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 07:58:58,177 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:58:58,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:58:58 BoogieIcfgContainer [2022-11-19 07:58:58,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:58:58,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:58:58,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:58:58,185 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:58:58,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:56" (3/4) ... [2022-11-19 07:58:58,189 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:58:58,207 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-19 07:58:58,208 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 07:58:58,208 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 07:58:58,208 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:58:58,262 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:58:58,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:58:58,264 INFO L158 Benchmark]: Toolchain (without parser) took 2855.53ms. Allocated memory is still 134.2MB. Free memory was 103.1MB in the beginning and 93.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-19 07:58:58,264 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 90.2MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:58:58,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.22ms. Allocated memory is still 134.2MB. Free memory was 102.8MB in the beginning and 111.8MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:58:58,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.29ms. Allocated memory is still 134.2MB. Free memory was 111.8MB in the beginning and 110.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:58,265 INFO L158 Benchmark]: Boogie Preprocessor took 47.91ms. Allocated memory is still 134.2MB. Free memory was 110.2MB in the beginning and 109.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:58:58,267 INFO L158 Benchmark]: RCFGBuilder took 479.53ms. Allocated memory is still 134.2MB. Free memory was 109.2MB in the beginning and 96.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:58:58,268 INFO L158 Benchmark]: TraceAbstraction took 1769.56ms. Allocated memory is still 134.2MB. Free memory was 95.6MB in the beginning and 96.5MB in the end (delta: -972.3kB). Peak memory consumption was 721.2kB. Max. memory is 16.1GB. [2022-11-19 07:58:58,271 INFO L158 Benchmark]: Witness Printer took 78.48ms. Allocated memory is still 134.2MB. Free memory was 96.5MB in the beginning and 93.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:58,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 90.2MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.22ms. Allocated memory is still 134.2MB. Free memory was 102.8MB in the beginning and 111.8MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.29ms. Allocated memory is still 134.2MB. Free memory was 111.8MB in the beginning and 110.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.91ms. Allocated memory is still 134.2MB. Free memory was 110.2MB in the beginning and 109.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 479.53ms. Allocated memory is still 134.2MB. Free memory was 109.2MB in the beginning and 96.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1769.56ms. Allocated memory is still 134.2MB. Free memory was 95.6MB in the beginning and 96.5MB in the end (delta: -972.3kB). Peak memory consumption was 721.2kB. Max. memory is 16.1GB. * Witness Printer took 78.48ms. Allocated memory is still 134.2MB. Free memory was 96.5MB in the beginning and 93.5MB in the end (delta: 3.0MB). 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 28]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 8 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 07:58:58,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e270a1-5690-477a-b9aa-7120c93d04cb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE