./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6eaec015dd6fdb220ef146938a83a65106037c982563310cbbb34d0417543f1 --- 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-e04fb08 [2022-11-16 15:53:19,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:53:19,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:53:19,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:53:19,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:53:19,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:53:19,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:53:19,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:53:19,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:53:19,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:53:19,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:53:19,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:53:19,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:53:19,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:53:19,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:53:19,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:53:19,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:53:19,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:53:19,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:53:19,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:53:19,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:53:19,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:53:19,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:53:19,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:53:19,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:53:19,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:53:19,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:53:19,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:53:19,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:53:19,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:53:19,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:53:19,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:53:19,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:53:19,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:53:19,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:53:19,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:53:19,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:53:19,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:53:19,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:53:19,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:53:19,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:53:19,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 15:53:19,859 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:53:19,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:53:19,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:53:19,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:53:19,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:53:19,862 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:53:19,862 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:53:19,862 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:53:19,863 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:53:19,863 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:53:19,864 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:53:19,865 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:53:19,865 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:53:19,865 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:53:19,865 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:53:19,866 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:53:19,866 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:53:19,866 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:53:19,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:53:19,868 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:53:19,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 15:53:19,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:53:19,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:53:19,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:53:19,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:53:19,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:53:19,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:53:19,870 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 15:53:19,870 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:53:19,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:53:19,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:53:19,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:53:19,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:53:19,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:53:19,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:53:19,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:53:19,873 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:53:19,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:53:19,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:53:19,874 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:53:19,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:53:19,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:53:19,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:53:19,875 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_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6eaec015dd6fdb220ef146938a83a65106037c982563310cbbb34d0417543f1 [2022-11-16 15:53:20,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:53:20,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:53:20,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:53:20,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:53:20,213 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:53:20,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-1.i [2022-11-16 15:53:20,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/data/757867518/9f4b6152cb9c40099e6cc63254cfb203/FLAGdb4a08f5c [2022-11-16 15:53:20,835 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:53:20,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/sv-benchmarks/c/list-ext3-properties/dll_nondet_free_order-1.i [2022-11-16 15:53:20,849 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/data/757867518/9f4b6152cb9c40099e6cc63254cfb203/FLAGdb4a08f5c [2022-11-16 15:53:21,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/data/757867518/9f4b6152cb9c40099e6cc63254cfb203 [2022-11-16 15:53:21,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:53:21,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:53:21,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:53:21,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:53:21,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:53:21,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d131b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21, skipping insertion in model container [2022-11-16 15:53:21,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:53:21,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:53:21,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:53:21,536 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:53:21,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:53:21,629 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:53:21,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21 WrapperNode [2022-11-16 15:53:21,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:53:21,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:53:21,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:53:21,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:53:21,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,698 INFO L138 Inliner]: procedures = 116, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2022-11-16 15:53:21,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:53:21,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:53:21,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:53:21,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:53:21,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,737 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:53:21,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:53:21,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:53:21,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:53:21,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (1/1) ... [2022-11-16 15:53:21,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:53:21,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:21,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:53:21,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:53:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-16 15:53:21,819 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-16 15:53:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 15:53:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 15:53:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 15:53:21,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:53:21,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:53:21,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:53:21,932 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:53:21,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:53:21,964 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-16 15:53:22,114 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:53:22,284 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:53:22,284 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 15:53:22,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:22 BoogieIcfgContainer [2022-11-16 15:53:22,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:53:22,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:53:22,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:53:22,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:53:22,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:53:21" (1/3) ... [2022-11-16 15:53:22,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391f585d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:53:22, skipping insertion in model container [2022-11-16 15:53:22,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:21" (2/3) ... [2022-11-16 15:53:22,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391f585d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:53:22, skipping insertion in model container [2022-11-16 15:53:22,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:22" (3/3) ... [2022-11-16 15:53:22,304 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_nondet_free_order-1.i [2022-11-16 15:53:22,354 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:53:22,355 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 15:53:22,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:53:22,429 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@691b7aa8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:53:22,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 15:53:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.5) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:53:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 15:53:22,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:22,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:22,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-16 15:53:22,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:22,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1002941081, now seen corresponding path program 1 times [2022-11-16 15:53:22,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:22,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104372136] [2022-11-16 15:53:22,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:22,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:22,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:22,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104372136] [2022-11-16 15:53:22,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104372136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:22,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:22,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:53:22,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525385715] [2022-11-16 15:53:22,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:22,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:53:22,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:22,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:53:22,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:53:22,950 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.5) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-16 15:53:23,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:23,076 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-16 15:53:23,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:53:23,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Word has length 7 [2022-11-16 15:53:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:23,109 INFO L225 Difference]: With dead ends: 15 [2022-11-16 15:53:23,110 INFO L226 Difference]: Without dead ends: 9 [2022-11-16 15:53:23,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:53:23,140 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:23,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 22 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:53:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-16 15:53:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-16 15:53:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-11-16 15:53:23,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 15:53:23,216 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-11-16 15:53:23,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:23,217 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 15:53:23,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-16 15:53:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 15:53:23,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 15:53:23,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:23,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:23,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:53:23,219 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-16 15:53:23,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:23,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1026402505, now seen corresponding path program 1 times [2022-11-16 15:53:23,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:23,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031154077] [2022-11-16 15:53:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:23,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:23,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:23,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031154077] [2022-11-16 15:53:23,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031154077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:23,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:23,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:53:23,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238728555] [2022-11-16 15:53:23,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:23,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:53:23,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:23,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:53:23,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:53:23,365 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-16 15:53:23,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:23,402 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-11-16 15:53:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:53:23,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-16 15:53:23,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:23,405 INFO L225 Difference]: With dead ends: 10 [2022-11-16 15:53:23,405 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 15:53:23,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:53:23,409 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:23,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:53:23,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 15:53:23,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 15:53:23,418 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) [2022-11-16 15:53:23,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 15:53:23,420 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-16 15:53:23,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:23,422 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 15:53:23,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-16 15:53:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 15:53:23,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 15:53:23,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-16 15:53:23,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-16 15:53:23,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 15:53:23,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 15:53:23,456 INFO L902 garLoopResultBuilder]: At program point L561(line 561) the Hoare annotation is: true [2022-11-16 15:53:23,457 INFO L902 garLoopResultBuilder]: At program point myexitENTRY(lines 560 562) the Hoare annotation is: true [2022-11-16 15:53:23,458 INFO L899 garLoopResultBuilder]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2022-11-16 15:53:23,459 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 579) no Hoare annotation was computed. [2022-11-16 15:53:23,460 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 15:53:23,460 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 575) no Hoare annotation was computed. [2022-11-16 15:53:23,461 INFO L899 garLoopResultBuilder]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2022-11-16 15:53:23,461 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 567) no Hoare annotation was computed. [2022-11-16 15:53:23,461 INFO L899 garLoopResultBuilder]: For program point L565-1(lines 565 567) no Hoare annotation was computed. [2022-11-16 15:53:23,461 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 579) no Hoare annotation was computed. [2022-11-16 15:53:23,462 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 15:53:23,463 INFO L895 garLoopResultBuilder]: At program point L574(line 574) the Hoare annotation is: (<= |ULTIMATE.start_dll_circular_create_~len#1| 3) [2022-11-16 15:53:23,463 INFO L895 garLoopResultBuilder]: At program point L566(line 566) the Hoare annotation is: (<= |ULTIMATE.start_dll_circular_create_~len#1| 3) [2022-11-16 15:53:23,463 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-11-16 15:53:23,463 INFO L899 garLoopResultBuilder]: For program point L579-1(line 579) no Hoare annotation was computed. [2022-11-16 15:53:23,464 INFO L895 garLoopResultBuilder]: At program point L571-2(lines 571 580) the Hoare annotation is: (<= |ULTIMATE.start_dll_circular_create_~len#1| 3) [2022-11-16 15:53:23,468 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 15:53:23,475 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 15:53:23,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:53:23 BoogieIcfgContainer [2022-11-16 15:53:23,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 15:53:23,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 15:53:23,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 15:53:23,494 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 15:53:23,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:22" (3/4) ... [2022-11-16 15:53:23,498 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 15:53:23,505 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-11-16 15:53:23,515 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-16 15:53:23,516 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-16 15:53:23,516 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 15:53:23,516 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 15:53:23,584 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 15:53:23,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 15:53:23,585 INFO L158 Benchmark]: Toolchain (without parser) took 2438.63ms. Allocated memory is still 140.5MB. Free memory was 103.1MB in the beginning and 96.5MB in the end (delta: 6.6MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-11-16 15:53:23,585 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 15:53:23,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.88ms. Allocated memory is still 140.5MB. Free memory was 102.9MB in the beginning and 109.5MB in the end (delta: -6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 15:53:23,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.05ms. Allocated memory is still 140.5MB. Free memory was 109.5MB in the beginning and 107.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 15:53:23,587 INFO L158 Benchmark]: Boogie Preprocessor took 40.30ms. Allocated memory is still 140.5MB. Free memory was 107.8MB in the beginning and 106.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 15:53:23,587 INFO L158 Benchmark]: RCFGBuilder took 546.03ms. Allocated memory is still 140.5MB. Free memory was 106.2MB in the beginning and 86.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-16 15:53:23,588 INFO L158 Benchmark]: TraceAbstraction took 1202.62ms. Allocated memory is still 140.5MB. Free memory was 85.9MB in the beginning and 99.4MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 15:53:23,588 INFO L158 Benchmark]: Witness Printer took 90.41ms. Allocated memory is still 140.5MB. Free memory was 99.4MB in the beginning and 96.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 15:53:23,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.88ms. Allocated memory is still 140.5MB. Free memory was 102.9MB in the beginning and 109.5MB in the end (delta: -6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.05ms. Allocated memory is still 140.5MB. Free memory was 109.5MB in the beginning and 107.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.30ms. Allocated memory is still 140.5MB. Free memory was 107.8MB in the beginning and 106.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 546.03ms. Allocated memory is still 140.5MB. Free memory was 106.2MB in the beginning and 86.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1202.62ms. Allocated memory is still 140.5MB. Free memory was 85.9MB in the beginning and 99.4MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 90.41ms. Allocated memory is still 140.5MB. Free memory was 99.4MB in the beginning and 96.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 579]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 579]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 11 HoareAnnotationTreeSize, 7 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 2 specifications checked. All of them hold - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: len <= 3 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-16 15:53:23,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f98d15-0826-4d0b-804a-71ed7793817d/bin/utaipan-Xvt2sAort0/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