./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strstr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/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_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS --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 64bit --witnessprinter.graph.data.programhash 4f0de1cabcaa1e7c1b5012604e9626b39d1f0fa44ba0399b8bd31764898831fc --- 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 07:21:43,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:21:43,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:21:43,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:21:43,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:21:43,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:21:43,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:21:43,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:21:43,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:21:43,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:21:43,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:21:43,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:21:43,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:21:43,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:21:43,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:21:43,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:21:43,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:21:43,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:21:43,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:21:43,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:21:43,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:21:43,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:21:43,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:21:43,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:21:43,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:21:43,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:21:43,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:21:43,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:21:43,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:21:43,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:21:43,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:21:43,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:21:43,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:21:43,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:21:43,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:21:43,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:21:43,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:21:43,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:21:43,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:21:43,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:21:43,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:21:43,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-19 07:21:44,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:21:44,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:21:44,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:21:44,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:21:44,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:21:44,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:21:44,012 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:21:44,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:21:44,012 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:21:44,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:21:44,013 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:21:44,014 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:21:44,014 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:21:44,014 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:21:44,014 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:21:44,015 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:21:44,015 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:21:44,015 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:21:44,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:21:44,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:21:44,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:21:44,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:21:44,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:21:44,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:21:44,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:21:44,019 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:21:44,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:21:44,019 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:21:44,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:21:44,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:21:44,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:21:44,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:21:44,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:21:44,021 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:21:44,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:21:44,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:21:44,021 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:21:44,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:21:44,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:21:44,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:21:44,022 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_6b887c88-47c5-4923-99bd-3f611b5ec23b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0de1cabcaa1e7c1b5012604e9626b39d1f0fa44ba0399b8bd31764898831fc [2022-11-19 07:21:44,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:21:44,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:21:44,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:21:44,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:21:44,409 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:21:44,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/termination-dietlibc/strstr.i [2022-11-19 07:21:44,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/data/ae88fa3a9/849fbd0fb1df4b88b5672315b9f57021/FLAGe269bd997 [2022-11-19 07:21:45,037 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:21:45,037 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/sv-benchmarks/c/termination-dietlibc/strstr.i [2022-11-19 07:21:45,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/data/ae88fa3a9/849fbd0fb1df4b88b5672315b9f57021/FLAGe269bd997 [2022-11-19 07:21:45,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/data/ae88fa3a9/849fbd0fb1df4b88b5672315b9f57021 [2022-11-19 07:21:45,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:21:45,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:21:45,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:21:45,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:21:45,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:21:45,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595e6919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45, skipping insertion in model container [2022-11-19 07:21:45,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:21:45,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:21:45,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:21:45,754 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:21:45,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:21:45,822 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:21:45,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45 WrapperNode [2022-11-19 07:21:45,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:21:45,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:21:45,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:21:45,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:21:45,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,868 INFO L138 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2022-11-19 07:21:45,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:21:45,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:21:45,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:21:45,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:21:45,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,924 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:21:45,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:21:45,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:21:45,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:21:45,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (1/1) ... [2022-11-19 07:21:45,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:21:45,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:45,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:21:45,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:21:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:21:46,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:21:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:21:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2022-11-19 07:21:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen [2022-11-19 07:21:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:21:46,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:21:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:21:46,110 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:21:46,112 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:21:46,499 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:21:46,527 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:21:46,527 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-19 07:21:46,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:46 BoogieIcfgContainer [2022-11-19 07:21:46,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:21:46,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:21:46,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:21:46,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:21:46,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:21:45" (1/3) ... [2022-11-19 07:21:46,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776c6274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:46, skipping insertion in model container [2022-11-19 07:21:46,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:45" (2/3) ... [2022-11-19 07:21:46,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776c6274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:46, skipping insertion in model container [2022-11-19 07:21:46,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:46" (3/3) ... [2022-11-19 07:21:46,544 INFO L112 eAbstractionObserver]: Analyzing ICFG strstr.i [2022-11-19 07:21:46,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:21:46,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-19 07:21:46,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:21:46,651 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;@59d20f3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:21:46,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-19 07:21:46,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 40 states have (on average 1.775) internal successors, (71), 54 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:21:46,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 07:21:46,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:46,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 07:21:46,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:46,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:46,672 INFO L85 PathProgramCache]: Analyzing trace with hash 186373, now seen corresponding path program 1 times [2022-11-19 07:21:46,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:46,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730433466] [2022-11-19 07:21:46,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:46,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:46,924 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 07:21:46,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:46,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730433466] [2022-11-19 07:21:46,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730433466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:46,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:46,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:21:46,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058920127] [2022-11-19 07:21:46,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:46,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:46,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:46,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:46,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:46,979 INFO L87 Difference]: Start difference. First operand has 58 states, 40 states have (on average 1.775) internal successors, (71), 54 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:47,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:47,079 INFO L93 Difference]: Finished difference Result 102 states and 138 transitions. [2022-11-19 07:21:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:47,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-19 07:21:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:47,089 INFO L225 Difference]: With dead ends: 102 [2022-11-19 07:21:47,089 INFO L226 Difference]: Without dead ends: 27 [2022-11-19 07:21:47,099 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 07:21:47,103 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 53 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:47,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 60 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:21:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-19 07:21:47,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-19 07:21:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 26 states have internal predecessors, (28), 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 07:21:47,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-11-19 07:21:47,141 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 3 [2022-11-19 07:21:47,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:47,142 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-11-19 07:21:47,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:47,143 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-11-19 07:21:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:21:47,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:47,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:21:47,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:21:47,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:47,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:47,148 INFO L85 PathProgramCache]: Analyzing trace with hash 5777628, now seen corresponding path program 1 times [2022-11-19 07:21:47,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:47,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269562140] [2022-11-19 07:21:47,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:47,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:47,227 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 07:21:47,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:47,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269562140] [2022-11-19 07:21:47,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269562140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:47,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:47,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:21:47,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254844204] [2022-11-19 07:21:47,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:47,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:47,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:47,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:47,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:47,232 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 07:21:47,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:47,263 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-19 07:21:47,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:47,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-19 07:21:47,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:47,266 INFO L225 Difference]: With dead ends: 27 [2022-11-19 07:21:47,266 INFO L226 Difference]: Without dead ends: 25 [2022-11-19 07:21:47,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:47,275 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 18 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 [2022-11-19 07:21:47,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 18 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:21:47,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-19 07:21:47,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-19 07:21:47,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 24 states have internal predecessors, (26), 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 07:21:47,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-19 07:21:47,288 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 4 [2022-11-19 07:21:47,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:47,289 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-19 07:21:47,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 07:21:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-11-19 07:21:47,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:21:47,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:47,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:21:47,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:21:47,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:47,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:47,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1257339207, now seen corresponding path program 1 times [2022-11-19 07:21:47,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:47,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960398723] [2022-11-19 07:21:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:47,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:47,419 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 07:21:47,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:47,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960398723] [2022-11-19 07:21:47,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960398723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:47,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:47,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:47,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125680487] [2022-11-19 07:21:47,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:47,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:21:47,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:47,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:21:47,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:21:47,422 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 07:21:47,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:47,460 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2022-11-19 07:21:47,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:21:47,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-11-19 07:21:47,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:47,462 INFO L225 Difference]: With dead ends: 48 [2022-11-19 07:21:47,462 INFO L226 Difference]: Without dead ends: 46 [2022-11-19 07:21:47,462 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 [2022-11-19 07:21:47,464 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 20 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:47,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 58 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:21:47,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-19 07:21:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 30. [2022-11-19 07:21:47,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 29 states have internal predecessors, (32), 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 07:21:47,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-11-19 07:21:47,470 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 6 [2022-11-19 07:21:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:47,470 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-11-19 07:21:47,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 07:21:47,471 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-11-19 07:21:47,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:21:47,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:47,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:47,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:21:47,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:47,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:47,472 INFO L85 PathProgramCache]: Analyzing trace with hash 869225359, now seen corresponding path program 1 times [2022-11-19 07:21:47,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:47,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202097070] [2022-11-19 07:21:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:47,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:47,606 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 07:21:47,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:47,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202097070] [2022-11-19 07:21:47,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202097070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:47,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:47,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:21:47,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548691153] [2022-11-19 07:21:47,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:47,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:47,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:47,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:47,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:47,609 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 07:21:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:47,655 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-19 07:21:47,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:47,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) Word has length 9 [2022-11-19 07:21:47,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:47,656 INFO L225 Difference]: With dead ends: 30 [2022-11-19 07:21:47,656 INFO L226 Difference]: Without dead ends: 28 [2022-11-19 07:21:47,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:47,658 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:47,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 23 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:21:47,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-19 07:21:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-19 07:21:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 27 states have internal predecessors, (30), 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 07:21:47,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-11-19 07:21:47,669 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 9 [2022-11-19 07:21:47,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:47,669 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-11-19 07:21:47,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 07:21:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-11-19 07:21:47,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:21:47,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:47,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:47,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:21:47,671 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:47,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:47,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1176182448, now seen corresponding path program 1 times [2022-11-19 07:21:47,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:47,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751588041] [2022-11-19 07:21:47,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:47,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:47,750 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 07:21:47,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:47,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751588041] [2022-11-19 07:21:47,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751588041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:47,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:47,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:21:47,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829340892] [2022-11-19 07:21:47,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:47,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:47,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:47,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:47,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:47,753 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 07:21:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:47,769 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-19 07:21:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:47,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-19 07:21:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:47,771 INFO L225 Difference]: With dead ends: 28 [2022-11-19 07:21:47,771 INFO L226 Difference]: Without dead ends: 24 [2022-11-19 07:21:47,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:47,772 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 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 07:21:47,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:21:47,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-19 07:21:47,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-19 07:21:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.3) internal successors, (26), 23 states have internal predecessors, (26), 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 07:21:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-19 07:21:47,777 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 10 [2022-11-19 07:21:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:47,778 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-19 07:21:47,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 07:21:47,778 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-19 07:21:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:21:47,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:47,779 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-19 07:21:47,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:21:47,780 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:47,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:47,780 INFO L85 PathProgramCache]: Analyzing trace with hash -611916750, now seen corresponding path program 1 times [2022-11-19 07:21:47,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:47,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483619081] [2022-11-19 07:21:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:47,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:47,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483619081] [2022-11-19 07:21:47,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483619081] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:21:47,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248179247] [2022-11-19 07:21:47,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:47,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:47,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:47,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:21:47,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:21:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:48,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:21:48,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:48,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:21:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:48,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248179247] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:21:48,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2066251836] [2022-11-19 07:21:48,198 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:21:48,198 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:21:48,202 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:21:48,207 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:21:48,208 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:21:48,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 07:21:48,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:21:48,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:21:48,489 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:21:48,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 125 [2022-11-19 07:21:48,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:21:48,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:21:48,851 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:21:49,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2066251836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:49,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:21:49,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5] total 14 [2022-11-19 07:21:49,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564139646] [2022-11-19 07:21:49,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:49,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:21:49,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:49,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:21:49,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-19 07:21:49,138 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.0) 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) [2022-11-19 07:21:49,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:49,353 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-11-19 07:21:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:21:49,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) 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 11 [2022-11-19 07:21:49,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:49,356 INFO L225 Difference]: With dead ends: 24 [2022-11-19 07:21:49,356 INFO L226 Difference]: Without dead ends: 22 [2022-11-19 07:21:49,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:21:49,357 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:49,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 12 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:49,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-19 07:21:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2022-11-19 07:21:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-19 07:21:49,362 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2022-11-19 07:21:49,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:49,363 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-19 07:21:49,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) 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) [2022-11-19 07:21:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-19 07:21:49,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:21:49,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:49,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:49,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:21:49,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:49,565 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:49,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash 734939643, now seen corresponding path program 1 times [2022-11-19 07:21:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:49,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145964774] [2022-11-19 07:21:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:49,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:49,658 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 07:21:49,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:49,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145964774] [2022-11-19 07:21:49,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145964774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:49,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:49,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:21:49,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652333533] [2022-11-19 07:21:49,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:49,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:21:49,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:49,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:21:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:21:49,661 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 07:21:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:49,688 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-11-19 07:21:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:21:49,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-11-19 07:21:49,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:49,689 INFO L225 Difference]: With dead ends: 24 [2022-11-19 07:21:49,689 INFO L226 Difference]: Without dead ends: 22 [2022-11-19 07:21:49,689 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 [2022-11-19 07:21:49,690 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:49,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 37 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:21:49,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-19 07:21:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-19 07:21:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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 07:21:49,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-19 07:21:49,704 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 12 [2022-11-19 07:21:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:49,704 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-19 07:21:49,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 07:21:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-19 07:21:49,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:21:49,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:49,710 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:49,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:21:49,711 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:49,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:49,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1225341116, now seen corresponding path program 1 times [2022-11-19 07:21:49,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:49,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173488844] [2022-11-19 07:21:49,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:49,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:49,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:49,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173488844] [2022-11-19 07:21:49,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173488844] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:21:49,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700766183] [2022-11-19 07:21:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:49,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:49,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:49,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:21:49,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:21:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:49,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:21:49,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:50,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:21:50,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:50,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700766183] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:21:50,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1802439854] [2022-11-19 07:21:50,064 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-19 07:21:50,065 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:21:50,065 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:21:50,066 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:21:50,066 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:21:50,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 07:21:50,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:21:50,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:21:50,187 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:21:50,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-19 07:21:50,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 07:21:50,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-11-19 07:21:50,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2022-11-19 07:21:50,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:21:50,606 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-19 07:21:50,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 267 treesize of output 246 [2022-11-19 07:21:50,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:21:50,787 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:21:51,810 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '787#(and (= |ULTIMATE.start_main_#t~malloc20#1.offset| 0) (<= |ULTIMATE.start_main_~needle~0#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc24#1.offset| 0) (<= |ULTIMATE.start_main_~in_len~0#1| 1) (<= 0 |ULTIMATE.start_main_#t~malloc20#1.base|) (<= 0 |ULTIMATE.start_main_#t~malloc24#1.base|) (= |ULTIMATE.start_main_~i~2#1| 0) (<= |ULTIMATE.start_main_~out_len~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_#t~post25#1|) (<= 0 |ULTIMATE.start_main_~needle~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~hay~0#1.base|) (<= 0 |ULTIMATE.start_main_~hay~0#1.offset|) (<= 0 |ULTIMATE.start_main_~needle~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~3#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~hay~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~in_len~0#1|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~out_len~0#1|))' at error location [2022-11-19 07:21:51,811 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:21:51,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:21:51,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-19 07:21:51,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175284435] [2022-11-19 07:21:51,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:21:51,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:21:51,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:51,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:21:51,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2022-11-19 07:21:51,812 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 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 07:21:51,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:51,985 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-11-19 07:21:51,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 07:21:51,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 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 17 [2022-11-19 07:21:51,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:51,986 INFO L225 Difference]: With dead ends: 41 [2022-11-19 07:21:51,987 INFO L226 Difference]: Without dead ends: 40 [2022-11-19 07:21:51,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2022-11-19 07:21:51,988 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:51,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 70 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:51,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-19 07:21:51,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2022-11-19 07:21:51,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 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 07:21:51,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-11-19 07:21:51,993 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 17 [2022-11-19 07:21:51,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:51,994 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-11-19 07:21:51,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 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 07:21:51,994 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-11-19 07:21:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:21:51,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:51,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:52,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:52,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:52,201 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:52,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:52,202 INFO L85 PathProgramCache]: Analyzing trace with hash -669130962, now seen corresponding path program 1 times [2022-11-19 07:21:52,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:52,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875908466] [2022-11-19 07:21:52,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:52,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:52,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:52,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:52,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875908466] [2022-11-19 07:21:52,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875908466] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:21:52,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109364325] [2022-11-19 07:21:52,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:52,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:52,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:52,280 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:21:52,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:21:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:52,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:21:52,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:52,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:21:52,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109364325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:52,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:21:52,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-19 07:21:52,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171318942] [2022-11-19 07:21:52,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:52,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:21:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:52,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:21:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:21:52,387 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:52,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:52,421 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2022-11-19 07:21:52,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:21:52,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 07:21:52,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:52,424 INFO L225 Difference]: With dead ends: 36 [2022-11-19 07:21:52,424 INFO L226 Difference]: Without dead ends: 35 [2022-11-19 07:21:52,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:21:52,427 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:52,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 36 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:21:52,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-19 07:21:52,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-19 07:21:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 34 states have internal predecessors, (36), 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 07:21:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-19 07:21:52,442 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 18 [2022-11-19 07:21:52,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:52,442 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-19 07:21:52,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-19 07:21:52,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 07:21:52,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:52,445 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:52,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:52,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:52,651 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 07:21:52,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:52,651 INFO L85 PathProgramCache]: Analyzing trace with hash 954344251, now seen corresponding path program 2 times [2022-11-19 07:21:52,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:52,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282247269] [2022-11-19 07:21:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:52,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:52,823 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:52,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:52,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282247269] [2022-11-19 07:21:52,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282247269] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:21:52,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146896601] [2022-11-19 07:21:52,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:21:52,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:52,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:52,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:21:52,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:21:52,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 07:21:52,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:21:52,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:21:52,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-19 07:21:52,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:21:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-19 07:21:53,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146896601] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:21:53,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [54900195] [2022-11-19 07:21:53,051 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-19 07:21:53,051 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:21:53,051 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:21:53,052 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:21:53,052 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:21:53,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:21:53,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-19 07:21:53,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:21:53,147 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:21:53,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-19 07:21:53,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 07:21:53,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-11-19 07:21:53,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2022-11-19 07:21:53,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:53,522 INFO L321 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-11-19 07:21:53,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 273 treesize of output 243 [2022-11-19 07:21:53,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 07:21:53,717 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:21:55,026 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1246#(and (= |ULTIMATE.start_main_#t~malloc20#1.offset| 0) (<= |ULTIMATE.start_main_~needle~0#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc24#1.offset| 0) (<= |ULTIMATE.start_main_~in_len~0#1| 1) (<= 0 |ULTIMATE.start_main_#t~malloc20#1.base|) (<= 0 |ULTIMATE.start_main_#t~malloc24#1.base|) (= |ULTIMATE.start_main_~i~2#1| 0) (<= |ULTIMATE.start_main_~out_len~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_#t~post25#1|) (<= 0 |ULTIMATE.start_main_~needle~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~hay~0#1.base|) (<= 0 |ULTIMATE.start_main_~hay~0#1.offset|) (<= 0 |ULTIMATE.start_main_~needle~0#1.offset|) (<= 0 |ULTIMATE.start_main_~i~3#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~hay~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~in_len~0#1|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~out_len~0#1|))' at error location [2022-11-19 07:21:55,026 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:21:55,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:21:55,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 15 [2022-11-19 07:21:55,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662916013] [2022-11-19 07:21:55,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:21:55,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 07:21:55,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:55,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 07:21:55,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2022-11-19 07:21:55,029 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 16 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 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 07:21:55,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:55,276 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2022-11-19 07:21:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 07:21:55,276 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 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 32 [2022-11-19 07:21:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:55,277 INFO L225 Difference]: With dead ends: 41 [2022-11-19 07:21:55,277 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:21:55,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2022-11-19 07:21:55,278 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 28 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:55,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 46 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:21:55,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:21:55,280 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 07:21:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:21:55,280 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-11-19 07:21:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:55,280 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:21:55,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 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 07:21:55,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:21:55,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:21:55,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-19 07:21:55,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-19 07:21:55,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-19 07:21:55,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-19 07:21:55,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-19 07:21:55,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-19 07:21:55,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-11-19 07:21:55,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-11-19 07:21:55,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-19 07:21:55,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-19 07:21:55,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-19 07:21:55,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-19 07:21:55,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-19 07:21:55,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-19 07:21:55,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 07:21:55,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:55,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:21:55,740 INFO L899 garLoopResultBuilder]: For program point strlenEXIT(lines 507 512) no Hoare annotation was computed. [2022-11-19 07:21:55,740 INFO L899 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2022-11-19 07:21:55,740 INFO L899 garLoopResultBuilder]: For program point L510-1(line 510) no Hoare annotation was computed. [2022-11-19 07:21:55,740 INFO L902 garLoopResultBuilder]: At program point strlenENTRY(lines 507 512) the Hoare annotation is: true [2022-11-19 07:21:55,740 INFO L902 garLoopResultBuilder]: At program point L510-4(line 510) the Hoare annotation is: true [2022-11-19 07:21:55,740 INFO L899 garLoopResultBuilder]: For program point strlenFINAL(lines 507 512) no Hoare annotation was computed. [2022-11-19 07:21:55,740 INFO L899 garLoopResultBuilder]: For program point L510-5(line 510) no Hoare annotation was computed. [2022-11-19 07:21:55,741 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2022-11-19 07:21:55,741 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-11-19 07:21:55,741 INFO L899 garLoopResultBuilder]: For program point L556(line 556) no Hoare annotation was computed. [2022-11-19 07:21:55,741 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-19 07:21:55,741 INFO L899 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2022-11-19 07:21:55,741 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2022-11-19 07:21:55,741 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:21:55,741 INFO L895 garLoopResultBuilder]: At program point L532-3(lines 532 537) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-19 07:21:55,742 INFO L895 garLoopResultBuilder]: At program point L557(lines 540 558) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-19 07:21:55,742 INFO L895 garLoopResultBuilder]: At program point L524(lines 513 525) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-19 07:21:55,742 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-19 07:21:55,742 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2022-11-19 07:21:55,742 INFO L899 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2022-11-19 07:21:55,742 INFO L899 garLoopResultBuilder]: For program point L533-2(lines 533 535) no Hoare annotation was computed. [2022-11-19 07:21:55,742 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-19 07:21:55,742 INFO L899 garLoopResultBuilder]: For program point L550(line 550) no Hoare annotation was computed. [2022-11-19 07:21:55,743 INFO L899 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2022-11-19 07:21:55,743 INFO L895 garLoopResultBuilder]: At program point L534(lines 526 539) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-19 07:21:55,743 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-11-19 07:21:55,743 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 518 523) no Hoare annotation was computed. [2022-11-19 07:21:55,744 INFO L895 garLoopResultBuilder]: At program point L518-3(lines 518 523) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-19 07:21:55,744 INFO L899 garLoopResultBuilder]: For program point L518-4(lines 518 523) no Hoare annotation was computed. [2022-11-19 07:21:55,744 INFO L895 garLoopResultBuilder]: At program point L527(line 527) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-19 07:21:55,744 INFO L899 garLoopResultBuilder]: For program point L527-1(line 527) no Hoare annotation was computed. [2022-11-19 07:21:55,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-11-19 07:21:55,745 INFO L899 garLoopResultBuilder]: For program point L552-1(line 552) no Hoare annotation was computed. [2022-11-19 07:21:55,745 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-11-19 07:21:55,746 INFO L899 garLoopResultBuilder]: For program point L552-2(lines 552 555) no Hoare annotation was computed. [2022-11-19 07:21:55,746 INFO L899 garLoopResultBuilder]: For program point L519-1(line 519) no Hoare annotation was computed. [2022-11-19 07:21:55,746 INFO L899 garLoopResultBuilder]: For program point L519-2(lines 519 520) no Hoare annotation was computed. [2022-11-19 07:21:55,746 INFO L899 garLoopResultBuilder]: For program point L552-5(line 552) no Hoare annotation was computed. [2022-11-19 07:21:55,746 INFO L899 garLoopResultBuilder]: For program point L552-6(line 552) no Hoare annotation was computed. [2022-11-19 07:21:55,747 INFO L895 garLoopResultBuilder]: At program point L552-7(lines 552 555) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_#t~malloc20#1.offset| 0)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~2#1|)) (.cse2 (<= 0 |ULTIMATE.start_main_#t~malloc20#1.base|)) (.cse3 (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~out_len~0#1| 2147483647)) (.cse5 (= (select |#valid| 0) 0)) (.cse6 (= |#NULL.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~hay~0#1.base|)) (.cse8 (<= 0 |ULTIMATE.start_main_~hay~0#1.offset|)) (.cse9 (<= |ULTIMATE.start_main_~hay~0#1.offset| 0)) (.cse10 (<= 1 |ULTIMATE.start_main_~in_len~0#1|)) (.cse11 (< 0 |#StackHeapBarrier|)) (.cse12 (= |#NULL.base| 0)) (.cse13 (<= 1 |ULTIMATE.start_main_~out_len~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~i~3#1| 0) .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~i~3#1|) .cse11 .cse12 .cse13))) [2022-11-19 07:21:55,747 INFO L899 garLoopResultBuilder]: For program point L552-8(lines 552 555) no Hoare annotation was computed. [2022-11-19 07:21:55,747 INFO L899 garLoopResultBuilder]: For program point L544-1(line 544) no Hoare annotation was computed. [2022-11-19 07:21:55,747 INFO L899 garLoopResultBuilder]: For program point L544-2(lines 544 547) no Hoare annotation was computed. [2022-11-19 07:21:55,748 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 548) no Hoare annotation was computed. [2022-11-19 07:21:55,748 INFO L899 garLoopResultBuilder]: For program point L544-5(line 544) no Hoare annotation was computed. [2022-11-19 07:21:55,748 INFO L899 garLoopResultBuilder]: For program point L544-6(line 544) no Hoare annotation was computed. [2022-11-19 07:21:55,748 INFO L895 garLoopResultBuilder]: At program point L544-7(lines 544 547) the Hoare annotation is: (and (= |ULTIMATE.start_main_#t~malloc20#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~2#1|) (<= 0 |ULTIMATE.start_main_#t~malloc20#1.base|) (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) (= (select |#valid| 0) 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~hay~0#1.base|) (<= 0 |ULTIMATE.start_main_~hay~0#1.offset|) (<= |ULTIMATE.start_main_~hay~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~in_len~0#1|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-19 07:21:55,748 INFO L899 garLoopResultBuilder]: For program point L544-8(lines 544 547) no Hoare annotation was computed. [2022-11-19 07:21:55,748 INFO L895 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-19 07:21:55,748 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2022-11-19 07:21:55,749 INFO L899 garLoopResultBuilder]: For program point L528-1(line 528) no Hoare annotation was computed. [2022-11-19 07:21:55,749 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:21:55,749 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 548) no Hoare annotation was computed. [2022-11-19 07:21:55,750 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2022-11-19 07:21:55,750 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 544) no Hoare annotation was computed. [2022-11-19 07:21:55,750 INFO L895 garLoopResultBuilder]: At program point L538(lines 526 539) the Hoare annotation is: (<= |ULTIMATE.start_main_~in_len~0#1| 2147483647) [2022-11-19 07:21:55,750 INFO L899 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2022-11-19 07:21:55,750 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-19 07:21:55,754 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:55,756 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:21:55,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:21:55 BoogieIcfgContainer [2022-11-19 07:21:55,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:21:55,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:21:55,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:21:55,784 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:21:55,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:46" (3/4) ... [2022-11-19 07:21:55,788 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:21:55,793 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure strlen [2022-11-19 07:21:55,798 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-19 07:21:55,799 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 07:21:55,799 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:21:55,799 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:21:55,847 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:21:55,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:21:55,848 INFO L158 Benchmark]: Toolchain (without parser) took 10506.11ms. Allocated memory was 140.5MB in the beginning and 218.1MB in the end (delta: 77.6MB). Free memory was 105.6MB in the beginning and 128.7MB in the end (delta: -23.1MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2022-11-19 07:21:55,848 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 56.1MB in the beginning and 56.1MB in the end (delta: 25.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:21:55,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.78ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 109.2MB in the end (delta: -3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:21:55,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.55ms. Allocated memory is still 140.5MB. Free memory was 109.2MB in the beginning and 107.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:21:55,849 INFO L158 Benchmark]: Boogie Preprocessor took 65.36ms. Allocated memory is still 140.5MB. Free memory was 107.0MB in the beginning and 105.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:21:55,850 INFO L158 Benchmark]: RCFGBuilder took 595.43ms. Allocated memory is still 140.5MB. Free memory was 105.5MB in the beginning and 87.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 07:21:55,850 INFO L158 Benchmark]: TraceAbstraction took 9250.70ms. Allocated memory was 140.5MB in the beginning and 218.1MB in the end (delta: 77.6MB). Free memory was 86.8MB in the beginning and 132.9MB in the end (delta: -46.1MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2022-11-19 07:21:55,851 INFO L158 Benchmark]: Witness Printer took 63.15ms. Allocated memory is still 218.1MB. Free memory was 132.9MB in the beginning and 128.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:21:55,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 56.1MB in the beginning and 56.1MB in the end (delta: 25.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.78ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 109.2MB in the end (delta: -3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.55ms. Allocated memory is still 140.5MB. Free memory was 109.2MB in the beginning and 107.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.36ms. Allocated memory is still 140.5MB. Free memory was 107.0MB in the beginning and 105.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 595.43ms. Allocated memory is still 140.5MB. Free memory was 105.5MB in the beginning and 87.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9250.70ms. Allocated memory was 140.5MB in the beginning and 218.1MB in the end (delta: 77.6MB). Free memory was 86.8MB in the beginning and 132.9MB in the end (delta: -46.1MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Witness Printer took 63.15ms. Allocated memory is still 218.1MB. Free memory was 132.9MB in the beginning and 128.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 544]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 548]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 548]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: 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, 58 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 384 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 226 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 170 mSDtfsCounter, 226 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 159 SyntacticMatches, 4 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 32 NumberOfFragments, 162 HoareAnnotationTreeSize, 18 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 352 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 200 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 571 SizeOfPredicates, 9 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 89/172 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: OVERALL_TIME: 0.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 6, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME: 0.5s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 22, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 38, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 53, DAG_COMPRESSION_RETAINED_NODES: 26, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: in_len <= 2147483647 - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: ((((((((((((((__builtin_alloca (in_len) == 0 && 0 <= i) && 0 <= __builtin_alloca (in_len)) && in_len <= 2147483647) && out_len <= 2147483647) && \valid[0] == 0) && #NULL == 0) && 0 <= hay) && 0 <= hay) && hay <= 0) && 1 <= in_len) && i == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 1 <= out_len) || ((((((((((((((__builtin_alloca (in_len) == 0 && 0 <= i) && 0 <= __builtin_alloca (in_len)) && in_len <= 2147483647) && out_len <= 2147483647) && \valid[0] == 0) && #NULL == 0) && 0 <= hay) && 0 <= hay) && hay <= 0) && 1 <= in_len) && 1 <= i) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 1 <= out_len) - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: in_len <= 2147483647 - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: in_len <= 2147483647 - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: in_len <= 2147483647 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: in_len <= 2147483647 - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 544]: Loop Invariant Derived loop invariant: ((((((((((__builtin_alloca (in_len) == 0 && 0 <= i) && 0 <= __builtin_alloca (in_len)) && in_len <= 2147483647) && \valid[0] == 0) && #NULL == 0) && 0 <= hay) && 0 <= hay) && hay <= 0) && 1 <= in_len) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: in_len <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:21:55,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b887c88-47c5-4923-99bd-3f611b5ec23b/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