./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/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_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/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 32bit --witnessprinter.graph.data.programhash 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 --- 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 06:53:16,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:53:16,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:53:16,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:53:16,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:53:16,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:53:16,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:53:16,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:53:16,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:53:16,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:53:16,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:53:16,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:53:16,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:53:16,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:53:16,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:53:16,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:53:16,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:53:16,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:53:16,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:53:16,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:53:16,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:53:16,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:53:16,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:53:16,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:53:16,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:53:16,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:53:16,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:53:16,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:53:16,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:53:16,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:53:16,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:53:16,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:53:16,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:53:16,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:53:16,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:53:16,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:53:16,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:53:16,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:53:16,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:53:16,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:53:16,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:53:16,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 06:53:16,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:53:16,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:53:16,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:53:16,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:53:16,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:53:16,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:53:16,985 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:53:16,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:53:16,985 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:53:16,985 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:53:16,986 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:53:16,987 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:53:16,987 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:53:16,987 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:53:16,987 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:53:16,987 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:53:16,987 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:53:16,988 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:53:16,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:53:16,989 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:53:16,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:53:16,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:53:16,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:53:16,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:53:16,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:53:16,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:53:16,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:53:16,991 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 06:53:16,992 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:53:16,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:53:16,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:53:16,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:53:16,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:53:16,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:53:16,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:53:16,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:53:16,994 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:53:16,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:53:16,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:53:16,994 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:53:16,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:53:16,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:53:16,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:53:16,995 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_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2022-11-19 06:53:17,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:53:17,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:53:17,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:53:17,373 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:53:17,374 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:53:17,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-19 06:53:17,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/data/ff245e475/738e14a5391c4ddc806e1e1968d1365f/FLAGceb6b0661 [2022-11-19 06:53:18,029 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:53:18,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-19 06:53:18,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/data/ff245e475/738e14a5391c4ddc806e1e1968d1365f/FLAGceb6b0661 [2022-11-19 06:53:18,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/data/ff245e475/738e14a5391c4ddc806e1e1968d1365f [2022-11-19 06:53:18,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:53:18,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:53:18,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:53:18,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:53:18,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:53:18,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d8165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18, skipping insertion in model container [2022-11-19 06:53:18,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:53:18,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:53:18,694 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-19 06:53:18,697 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-19 06:53:18,698 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-19 06:53:18,701 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-19 06:53:18,702 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-19 06:53:18,705 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-19 06:53:18,706 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-19 06:53:18,709 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-19 06:53:18,710 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-19 06:53:18,713 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-19 06:53:18,715 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-19 06:53:18,717 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-19 06:53:18,719 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-19 06:53:18,721 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-19 06:53:18,723 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-19 06:53:18,724 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-19 06:53:18,725 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-19 06:53:18,727 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-19 06:53:18,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:53:18,737 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:53:18,753 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-19 06:53:18,755 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-19 06:53:18,756 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-19 06:53:18,759 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-19 06:53:18,760 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-19 06:53:18,762 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-19 06:53:18,763 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-19 06:53:18,764 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-19 06:53:18,766 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-19 06:53:18,768 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-19 06:53:18,769 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-19 06:53:18,771 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-19 06:53:18,773 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-19 06:53:18,775 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-19 06:53:18,776 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-19 06:53:18,777 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-19 06:53:18,779 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-19 06:53:18,780 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-19 06:53:18,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:53:18,815 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:53:18,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18 WrapperNode [2022-11-19 06:53:18,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:53:18,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:53:18,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:53:18,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:53:18,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,884 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 254 [2022-11-19 06:53:18,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:53:18,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:53:18,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:53:18,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:53:18,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,922 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:53:18,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:53:18,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:53:18,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:53:18,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (1/1) ... [2022-11-19 06:53:18,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:53:18,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:53:18,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:53:19,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:53:19,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:53:19,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:53:19,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:53:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:53:19,158 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:53:19,160 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:53:19,494 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:53:19,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:53:19,520 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:53:19,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:53:19 BoogieIcfgContainer [2022-11-19 06:53:19,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:53:19,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:53:19,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:53:19,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:53:19,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:53:18" (1/3) ... [2022-11-19 06:53:19,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3951bd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:53:19, skipping insertion in model container [2022-11-19 06:53:19,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:18" (2/3) ... [2022-11-19 06:53:19,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3951bd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:53:19, skipping insertion in model container [2022-11-19 06:53:19,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:53:19" (3/3) ... [2022-11-19 06:53:19,538 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2022-11-19 06:53:19,559 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:53:19,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-19 06:53:19,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:53:19,644 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;@8e1792f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:53:19,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-19 06:53:19,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 46 states have (on average 1.8695652173913044) internal successors, (86), 56 states have internal predecessors, (86), 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 06:53:19,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 06:53:19,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:19,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 06:53:19,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:19,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:19,669 INFO L85 PathProgramCache]: Analyzing trace with hash 207737, now seen corresponding path program 1 times [2022-11-19 06:53:19,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:19,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939303358] [2022-11-19 06:53:19,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:19,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:19,895 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 06:53:19,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:19,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939303358] [2022-11-19 06:53:19,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939303358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:19,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:19,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 06:53:19,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903394638] [2022-11-19 06:53:19,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:19,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:53:19,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:19,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:53:19,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:53:19,947 INFO L87 Difference]: Start difference. First operand has 57 states, 46 states have (on average 1.8695652173913044) internal successors, (86), 56 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) 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 06:53:20,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:20,056 INFO L93 Difference]: Finished difference Result 59 states and 87 transitions. [2022-11-19 06:53:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:53:20,059 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 06:53:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:20,067 INFO L225 Difference]: With dead ends: 59 [2022-11-19 06:53:20,067 INFO L226 Difference]: Without dead ends: 45 [2022-11-19 06:53:20,071 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 06:53:20,077 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:20,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 42 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:53:20,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-19 06:53:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-19 06:53:20,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 44 states have internal predecessors, (49), 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 06:53:20,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-11-19 06:53:20,114 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 3 [2022-11-19 06:53:20,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:20,115 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-11-19 06:53:20,115 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 06:53:20,115 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-11-19 06:53:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:53:20,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:20,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:53:20,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:53:20,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash 6439886, now seen corresponding path program 1 times [2022-11-19 06:53:20,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:20,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710486845] [2022-11-19 06:53:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:20,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:20,172 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 06:53:20,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:20,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710486845] [2022-11-19 06:53:20,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710486845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:20,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:20,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:53:20,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060168466] [2022-11-19 06:53:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:20,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:53:20,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:20,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:53:20,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:53:20,178 INFO L87 Difference]: Start difference. First operand 45 states and 49 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 06:53:20,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:20,224 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-11-19 06:53:20,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:53:20,225 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 06:53:20,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:20,226 INFO L225 Difference]: With dead ends: 45 [2022-11-19 06:53:20,226 INFO L226 Difference]: Without dead ends: 44 [2022-11-19 06:53:20,226 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 06:53:20,227 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:20,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:53:20,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-19 06:53:20,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-19 06:53:20,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 43 states have internal predecessors, (48), 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 06:53:20,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-11-19 06:53:20,234 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 4 [2022-11-19 06:53:20,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:20,235 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-11-19 06:53:20,235 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 06:53:20,235 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-11-19 06:53:20,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 06:53:20,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:20,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:20,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:53:20,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:20,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:20,237 INFO L85 PathProgramCache]: Analyzing trace with hash -815022600, now seen corresponding path program 1 times [2022-11-19 06:53:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:20,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534032662] [2022-11-19 06:53:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:20,312 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 06:53:20,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:20,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534032662] [2022-11-19 06:53:20,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534032662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:20,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:20,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:53:20,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254032306] [2022-11-19 06:53:20,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:20,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:53:20,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:20,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:53:20,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:53:20,315 INFO L87 Difference]: Start difference. First operand 44 states and 48 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 06:53:20,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:20,383 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2022-11-19 06:53:20,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:53:20,384 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 06:53:20,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:20,385 INFO L225 Difference]: With dead ends: 54 [2022-11-19 06:53:20,385 INFO L226 Difference]: Without dead ends: 50 [2022-11-19 06:53:20,385 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 06:53:20,386 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:20,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 42 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:53:20,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-19 06:53:20,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-19 06:53:20,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 49 states have internal predecessors, (54), 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 06:53:20,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-11-19 06:53:20,394 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 10 [2022-11-19 06:53:20,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:20,395 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-11-19 06:53:20,395 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 06:53:20,395 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-11-19 06:53:20,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:53:20,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:20,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:20,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:53:20,397 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:20,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:20,397 INFO L85 PathProgramCache]: Analyzing trace with hash -2044534159, now seen corresponding path program 1 times [2022-11-19 06:53:20,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:20,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531917248] [2022-11-19 06:53:20,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:20,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:20,542 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 06:53:20,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:20,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531917248] [2022-11-19 06:53:20,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531917248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:20,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:20,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:53:20,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973667776] [2022-11-19 06:53:20,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:20,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:53:20,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:20,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:53:20,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:53:20,546 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 06:53:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:20,659 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2022-11-19 06:53:20,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:53:20,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 06:53:20,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:20,662 INFO L225 Difference]: With dead ends: 79 [2022-11-19 06:53:20,662 INFO L226 Difference]: Without dead ends: 75 [2022-11-19 06:53:20,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:53:20,664 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 41 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:20,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 28 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:53:20,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-19 06:53:20,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2022-11-19 06:53:20,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 70 states have internal predecessors, (78), 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 06:53:20,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2022-11-19 06:53:20,674 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 17 [2022-11-19 06:53:20,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:20,675 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2022-11-19 06:53:20,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 06:53:20,675 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2022-11-19 06:53:20,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 06:53:20,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:20,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:20,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:53:20,677 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:20,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:20,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1043950612, now seen corresponding path program 1 times [2022-11-19 06:53:20,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:20,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411746297] [2022-11-19 06:53:20,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:20,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:20,773 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 06:53:20,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:20,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411746297] [2022-11-19 06:53:20,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411746297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:20,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:20,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:53:20,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092155726] [2022-11-19 06:53:20,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:20,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:53:20,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:20,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:53:20,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:53:20,776 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 06:53:20,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:20,862 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2022-11-19 06:53:20,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:53:20,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 06:53:20,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:20,864 INFO L225 Difference]: With dead ends: 71 [2022-11-19 06:53:20,864 INFO L226 Difference]: Without dead ends: 67 [2022-11-19 06:53:20,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:53:20,865 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:20,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 21 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:53:20,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-19 06:53:20,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-19 06:53:20,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 66 states have internal predecessors, (74), 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 06:53:20,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2022-11-19 06:53:20,874 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 18 [2022-11-19 06:53:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:20,874 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2022-11-19 06:53:20,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 06:53:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2022-11-19 06:53:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 06:53:20,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:20,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:20,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:53:20,876 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:20,877 INFO L85 PathProgramCache]: Analyzing trace with hash 830810215, now seen corresponding path program 1 times [2022-11-19 06:53:20,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:20,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828184095] [2022-11-19 06:53:20,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:20,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:21,002 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 06:53:21,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:21,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828184095] [2022-11-19 06:53:21,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828184095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:21,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:21,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:53:21,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746740907] [2022-11-19 06:53:21,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:21,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:53:21,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:53:21,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:53:21,009 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 06:53:21,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:21,142 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2022-11-19 06:53:21,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:53:21,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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) Word has length 23 [2022-11-19 06:53:21,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:21,144 INFO L225 Difference]: With dead ends: 101 [2022-11-19 06:53:21,144 INFO L226 Difference]: Without dead ends: 97 [2022-11-19 06:53:21,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:53:21,146 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 63 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:21,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 33 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:53:21,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-19 06:53:21,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2022-11-19 06:53:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 92 states have internal predecessors, (103), 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 06:53:21,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2022-11-19 06:53:21,168 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 23 [2022-11-19 06:53:21,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:21,168 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2022-11-19 06:53:21,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 06:53:21,171 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2022-11-19 06:53:21,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 06:53:21,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:21,173 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:21,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:53:21,173 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:21,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash -819026521, now seen corresponding path program 1 times [2022-11-19 06:53:21,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:21,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252928077] [2022-11-19 06:53:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:21,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:53:21,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:21,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252928077] [2022-11-19 06:53:21,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252928077] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:53:21,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626102504] [2022-11-19 06:53:21,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:21,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:53:21,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:53:21,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:53:21,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:53:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:21,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:53:21,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:53:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:53:21,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:53:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:53:21,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626102504] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:53:21,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1022600126] [2022-11-19 06:53:21,743 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-19 06:53:21,744 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:53:21,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:53:21,753 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:53:21,753 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:53:25,957 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:53:32,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1022600126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:32,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:53:32,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [5, 5, 5] total 30 [2022-11-19 06:53:32,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678853379] [2022-11-19 06:53:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:32,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-19 06:53:32,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-19 06:53:32,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2022-11-19 06:53:32,294 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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 06:53:43,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:43,015 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2022-11-19 06:53:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-19 06:53:43,027 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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 30 [2022-11-19 06:53:43,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:43,029 INFO L225 Difference]: With dead ends: 136 [2022-11-19 06:53:43,030 INFO L226 Difference]: Without dead ends: 134 [2022-11-19 06:53:43,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=431, Invalid=2325, Unknown=0, NotChecked=0, Total=2756 [2022-11-19 06:53:43,034 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 74 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:43,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 53 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 06:53:43,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-19 06:53:43,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 106. [2022-11-19 06:53:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 105 states have internal predecessors, (119), 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 06:53:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2022-11-19 06:53:43,049 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 30 [2022-11-19 06:53:43,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:43,050 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2022-11-19 06:53:43,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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 06:53:43,050 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2022-11-19 06:53:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 06:53:43,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:43,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:43,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:53:43,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 06:53:43,261 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:43,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:43,261 INFO L85 PathProgramCache]: Analyzing trace with hash -2105234546, now seen corresponding path program 1 times [2022-11-19 06:53:43,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:43,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178723394] [2022-11-19 06:53:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:43,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:43,436 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 06:53:43,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:43,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178723394] [2022-11-19 06:53:43,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178723394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:43,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:43,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:53:43,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583894246] [2022-11-19 06:53:43,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:43,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:53:43,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:43,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:53:43,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:53:43,441 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 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 06:53:43,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:43,594 INFO L93 Difference]: Finished difference Result 163 states and 182 transitions. [2022-11-19 06:53:43,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:53:43,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 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) Word has length 30 [2022-11-19 06:53:43,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:43,598 INFO L225 Difference]: With dead ends: 163 [2022-11-19 06:53:43,598 INFO L226 Difference]: Without dead ends: 159 [2022-11-19 06:53:43,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:53:43,601 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 111 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:43,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 39 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:53:43,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-19 06:53:43,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 146. [2022-11-19 06:53:43,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 142 states have (on average 1.1549295774647887) internal successors, (164), 145 states have internal predecessors, (164), 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 06:53:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 164 transitions. [2022-11-19 06:53:43,646 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 164 transitions. Word has length 30 [2022-11-19 06:53:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:43,650 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 164 transitions. [2022-11-19 06:53:43,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 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 06:53:43,651 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 164 transitions. [2022-11-19 06:53:43,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 06:53:43,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:43,656 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:43,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:53:43,656 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:43,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:43,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1587241879, now seen corresponding path program 1 times [2022-11-19 06:53:43,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:43,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118252268] [2022-11-19 06:53:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:43,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:43,811 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 06:53:43,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:43,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118252268] [2022-11-19 06:53:43,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118252268] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:53:43,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719872382] [2022-11-19 06:53:43,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:43,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:53:43,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:53:43,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:53:43,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:53:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:43,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:53:43,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:53:43,990 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 06:53:44,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:53:44,116 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 06:53:44,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719872382] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:53:44,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1120780219] [2022-11-19 06:53:44,119 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-19 06:53:44,119 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:53:44,119 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:53:44,119 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:53:44,119 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:53:44,973 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:53:50,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1120780219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:50,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:53:50,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [6, 6, 6] total 40 [2022-11-19 06:53:50,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233006335] [2022-11-19 06:53:50,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:50,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-19 06:53:50,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:50,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-19 06:53:50,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1366, Unknown=0, NotChecked=0, Total=1640 [2022-11-19 06:53:50,978 INFO L87 Difference]: Start difference. First operand 146 states and 164 transitions. Second operand has 30 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 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 06:53:53,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:53,831 INFO L93 Difference]: Finished difference Result 210 states and 236 transitions. [2022-11-19 06:53:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-19 06:53:53,832 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 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 37 [2022-11-19 06:53:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:53,833 INFO L225 Difference]: With dead ends: 210 [2022-11-19 06:53:53,833 INFO L226 Difference]: Without dead ends: 207 [2022-11-19 06:53:53,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=363, Invalid=2087, Unknown=0, NotChecked=0, Total=2450 [2022-11-19 06:53:53,835 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 72 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:53,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 70 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 06:53:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-19 06:53:53,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 139. [2022-11-19 06:53:53,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 136 states have (on average 1.1691176470588236) internal successors, (159), 138 states have internal predecessors, (159), 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 06:53:53,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 159 transitions. [2022-11-19 06:53:53,871 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 159 transitions. Word has length 37 [2022-11-19 06:53:53,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:53,872 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 159 transitions. [2022-11-19 06:53:53,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 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 06:53:53,872 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 159 transitions. [2022-11-19 06:53:53,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 06:53:53,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:53,873 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:53,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:53:54,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:53:54,079 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:53:54,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:54,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1049860256, now seen corresponding path program 1 times [2022-11-19 06:53:54,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:54,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462644600] [2022-11-19 06:53:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:54,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:53:54,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:54,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462644600] [2022-11-19 06:53:54,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462644600] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:53:54,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122365889] [2022-11-19 06:53:54,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:54,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:53:54,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:53:54,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:53:54,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:53:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:54,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:53:54,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:53:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:53:54,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:53:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:53:54,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122365889] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:53:54,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1711573421] [2022-11-19 06:53:54,485 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-19 06:53:54,486 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:53:54,486 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:53:54,486 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:53:54,487 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:53:57,908 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:54:07,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1711573421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:07,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:54:07,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [6, 6, 6] total 37 [2022-11-19 06:54:07,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942102963] [2022-11-19 06:54:07,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:07,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-19 06:54:07,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:07,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-19 06:54:07,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=1110, Unknown=0, NotChecked=0, Total=1406 [2022-11-19 06:54:07,344 INFO L87 Difference]: Start difference. First operand 139 states and 159 transitions. Second operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 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 06:54:22,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:22,639 INFO L93 Difference]: Finished difference Result 193 states and 219 transitions. [2022-11-19 06:54:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-19 06:54:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 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) Word has length 37 [2022-11-19 06:54:22,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:22,641 INFO L225 Difference]: With dead ends: 193 [2022-11-19 06:54:22,641 INFO L226 Difference]: Without dead ends: 191 [2022-11-19 06:54:22,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=536, Invalid=3004, Unknown=0, NotChecked=0, Total=3540 [2022-11-19 06:54:22,643 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 80 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:22,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 102 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 06:54:22,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-19 06:54:22,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 142. [2022-11-19 06:54:22,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 141 states have internal predecessors, (164), 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 06:54:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 164 transitions. [2022-11-19 06:54:22,665 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 164 transitions. Word has length 37 [2022-11-19 06:54:22,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:22,665 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 164 transitions. [2022-11-19 06:54:22,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 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 06:54:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 164 transitions. [2022-11-19 06:54:22,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-19 06:54:22,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:22,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:22,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:54:22,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:22,873 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:22,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:22,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1405280403, now seen corresponding path program 1 times [2022-11-19 06:54:22,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:22,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71899238] [2022-11-19 06:54:22,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:22,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:22,975 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:54:22,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:22,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71899238] [2022-11-19 06:54:22,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71899238] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:22,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176381789] [2022-11-19 06:54:22,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:22,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:22,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:22,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:22,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:54:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:23,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:54:23,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:23,098 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:54:23,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:54:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:54:23,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176381789] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:54:23,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [635081220] [2022-11-19 06:54:23,184 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-19 06:54:23,184 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:54:23,185 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:54:23,185 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:54:23,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:54:24,800 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:54:29,411 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3457#(and (<= 0 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483648)) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1| 1) (<= 0 (+ ~__tmp_259_0~0 2147483648)) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1| 1) (<= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~main__t~0#1| 2147483647) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_6~0#1|) (= ~__return_305~0 0) (<= |ULTIMATE.start_main_~__tmp_1~0#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 0) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1|) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__tmp_2~0#1| 1) (<= ~__tmp_259_0~0 2147483647) (<= 0 |#StackHeapBarrier|) (= ~__return_main~0 0) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1| 2147483647) (= ~__tmp_383_0~0 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~__tmp_2~0#1|))' at error location [2022-11-19 06:54:29,411 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:54:29,411 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:54:29,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-19 06:54:29,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83893476] [2022-11-19 06:54:29,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:54:29,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 06:54:29,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:29,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 06:54:29,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2022-11-19 06:54:29,414 INFO L87 Difference]: Start difference. First operand 142 states and 164 transitions. Second operand has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 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 06:54:29,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:29,833 INFO L93 Difference]: Finished difference Result 524 states and 611 transitions. [2022-11-19 06:54:29,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 06:54:29,834 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 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 38 [2022-11-19 06:54:29,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:29,836 INFO L225 Difference]: With dead ends: 524 [2022-11-19 06:54:29,836 INFO L226 Difference]: Without dead ends: 521 [2022-11-19 06:54:29,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2022-11-19 06:54:29,837 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 512 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:29,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 80 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 06:54:29,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-11-19 06:54:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 382. [2022-11-19 06:54:29,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 379 states have (on average 1.1451187335092348) internal successors, (434), 381 states have internal predecessors, (434), 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 06:54:29,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 434 transitions. [2022-11-19 06:54:29,896 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 434 transitions. Word has length 38 [2022-11-19 06:54:29,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:29,896 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 434 transitions. [2022-11-19 06:54:29,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 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 06:54:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 434 transitions. [2022-11-19 06:54:29,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 06:54:29,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:29,899 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:29,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 06:54:30,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:30,104 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1021909275, now seen corresponding path program 1 times [2022-11-19 06:54:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:30,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913506214] [2022-11-19 06:54:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:30,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:30,358 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:54:30,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:30,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913506214] [2022-11-19 06:54:30,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913506214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:30,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481840750] [2022-11-19 06:54:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:30,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:30,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:30,360 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:30,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 06:54:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:30,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 06:54:30,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:30,575 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:54:30,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:54:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:54:30,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481840750] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:54:30,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1034242127] [2022-11-19 06:54:30,861 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-19 06:54:30,861 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:54:30,862 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:54:30,862 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:54:30,862 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:54:33,663 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:54:43,598 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5001#(and (<= 0 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= |ULTIMATE.start_main_~__tmp_9~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (<= ~__tmp_383_0~0 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_17~0#1|) (<= 0 ~__tmp_383_0~0) (<= 0 |ULTIMATE.start_main_~__tmp_18~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483648)) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1| 1) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_9~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= 0 (+ ~__tmp_259_0~0 2147483648)) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1| 1) (<= |ULTIMATE.start_main_~__tmp_10~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 2147483645) (<= |ULTIMATE.start_main_~__tmp_18~0#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~main__t~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1| 1) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_7~0#1|) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 0)) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_6~0#1|) (= ~__return_305~0 0) (<= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483647) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1|) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1|) (<= |ULTIMATE.start_main_~__tmp_17~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 1) (<= 2 |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= ~__tmp_259_0~0 2147483647) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 2147483644) (= ~__return_main~0 0) (<= 0 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |#NULL.base| 0))' at error location [2022-11-19 06:54:43,598 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:54:43,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:54:43,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-11-19 06:54:43,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686483176] [2022-11-19 06:54:43,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:54:43,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 06:54:43,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:43,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 06:54:43,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2022-11-19 06:54:43,615 INFO L87 Difference]: Start difference. First operand 382 states and 434 transitions. Second operand has 25 states, 24 states have (on average 6.708333333333333) internal successors, (161), 25 states have internal predecessors, (161), 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 06:54:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:44,550 INFO L93 Difference]: Finished difference Result 1106 states and 1289 transitions. [2022-11-19 06:54:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-19 06:54:44,551 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.708333333333333) internal successors, (161), 25 states have internal predecessors, (161), 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 76 [2022-11-19 06:54:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:44,555 INFO L225 Difference]: With dead ends: 1106 [2022-11-19 06:54:44,556 INFO L226 Difference]: Without dead ends: 1103 [2022-11-19 06:54:44,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 180 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1652 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2022-11-19 06:54:44,558 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1354 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:44,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 152 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 06:54:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2022-11-19 06:54:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 862. [2022-11-19 06:54:44,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 859 states have (on average 1.1338766006984866) internal successors, (974), 861 states have internal predecessors, (974), 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 06:54:44,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 974 transitions. [2022-11-19 06:54:44,696 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 974 transitions. Word has length 76 [2022-11-19 06:54:44,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:44,697 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 974 transitions. [2022-11-19 06:54:44,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.708333333333333) internal successors, (161), 25 states have internal predecessors, (161), 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 06:54:44,697 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 974 transitions. [2022-11-19 06:54:44,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-19 06:54:44,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:44,701 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:44,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 06:54:44,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:44,907 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:44,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:44,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1424713051, now seen corresponding path program 2 times [2022-11-19 06:54:44,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:44,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623813570] [2022-11-19 06:54:44,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:44,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 581 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:54:45,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:45,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623813570] [2022-11-19 06:54:45,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623813570] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:45,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179052310] [2022-11-19 06:54:45,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:54:45,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:45,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:45,819 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:45,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 06:54:45,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 06:54:45,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:54:45,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 06:54:45,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-11-19 06:54:46,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:54:46,579 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-11-19 06:54:46,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179052310] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:54:46,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [638143220] [2022-11-19 06:54:46,581 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-19 06:54:46,582 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:54:46,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:54:46,582 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:54:46,583 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:54:49,560 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:01,305 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8254#(and (<= 0 |ULTIMATE.start_main_~__tmp_5~0#1|) (<= |ULTIMATE.start_main_~__tmp_9~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_6~0#1| 1) (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (<= ~__tmp_383_0~0 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_17~0#1|) (<= 0 ~__tmp_383_0~0) (<= 0 |ULTIMATE.start_main_~__tmp_18~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483648)) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~4#1| 1) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_9~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= 0 (+ ~__tmp_259_0~0 2147483648)) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1| 1) (<= |ULTIMATE.start_main_~__tmp_10~0#1| 1) (<= |ULTIMATE.start_main_~__tmp_5~0#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1| 1) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 2147483645) (<= |ULTIMATE.start_main_~__tmp_18~0#1| 1) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 2147483648)) (<= |ULTIMATE.start_main_~main__t~0#1| 2147483647) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1| 1) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_7~0#1|) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~9#1| 0)) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__tmp_6~0#1|) (= ~__return_305~0 0) (<= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 2147483647) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~5#1|) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~8#1|) (<= |ULTIMATE.start_main_~__tmp_17~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 1) (<= 2 |ULTIMATE.start_main_~main____CPAchecker_TMP_5~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= ~__tmp_259_0~0 2147483647) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 2147483644) (= ~__return_main~0 0) (<= 0 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |#NULL.base| 0))' at error location [2022-11-19 06:55:01,306 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:55:01,306 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:01,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 5, 5] total 33 [2022-11-19 06:55:01,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933450041] [2022-11-19 06:55:01,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:55:01,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-19 06:55:01,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:01,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-19 06:55:01,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=833, Invalid=3327, Unknown=0, NotChecked=0, Total=4160 [2022-11-19 06:55:01,309 INFO L87 Difference]: Start difference. First operand 862 states and 974 transitions. Second operand has 34 states, 33 states have (on average 7.03030303030303) internal successors, (232), 34 states have internal predecessors, (232), 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 06:55:06,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:06,269 INFO L93 Difference]: Finished difference Result 1250 states and 1423 transitions. [2022-11-19 06:55:06,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-11-19 06:55:06,269 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 7.03030303030303) internal successors, (232), 34 states have internal predecessors, (232), 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 154 [2022-11-19 06:55:06,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:06,270 INFO L225 Difference]: With dead ends: 1250 [2022-11-19 06:55:06,270 INFO L226 Difference]: Without dead ends: 186 [2022-11-19 06:55:06,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 419 SyntacticMatches, 2 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9821 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=5664, Invalid=20742, Unknown=0, NotChecked=0, Total=26406 [2022-11-19 06:55:06,280 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 4644 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4644 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:06,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4644 Valid, 178 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 06:55:06,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-19 06:55:06,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-11-19 06:55:06,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.0054054054054054) internal successors, (186), 185 states have internal predecessors, (186), 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 06:55:06,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2022-11-19 06:55:06,298 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 154 [2022-11-19 06:55:06,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:06,298 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2022-11-19 06:55:06,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 7.03030303030303) internal successors, (232), 34 states have internal predecessors, (232), 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 06:55:06,299 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2022-11-19 06:55:06,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-19 06:55:06,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:06,301 INFO L195 NwaCegarLoop]: trace histogram [26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:06,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:06,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-19 06:55:06,502 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:55:06,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:06,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1575861059, now seen corresponding path program 1 times [2022-11-19 06:55:06,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:06,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261332637] [2022-11-19 06:55:06,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:06,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:55:07,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:07,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261332637] [2022-11-19 06:55:07,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261332637] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:07,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543180230] [2022-11-19 06:55:07,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:07,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:07,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:07,575 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:07,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 06:55:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:07,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 06:55:07,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:55:08,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:55:09,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543180230] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:09,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [43224633] [2022-11-19 06:55:09,176 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-19 06:55:09,176 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:09,176 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:09,177 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:09,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:09,550 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:11,195 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11301#(and (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= ~__tmp_383_0~0 0) (<= 0 |#NULL.base|) (<= 0 ~__tmp_383_0~0) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= ~__return_305~0 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 ~__tmp_259_0~0) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= ~__return_main~0 0) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 ~__return_305~0) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (<= 0 ~__return_main~0) (<= ~__tmp_259_0~0 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-19 06:55:11,195 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:55:11,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:11,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 54 [2022-11-19 06:55:11,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852321947] [2022-11-19 06:55:11,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:55:11,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-19 06:55:11,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:11,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-19 06:55:11,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1809, Invalid=2883, Unknown=0, NotChecked=0, Total=4692 [2022-11-19 06:55:11,199 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 55 states, 54 states have (on average 7.018518518518518) internal successors, (379), 55 states have internal predecessors, (379), 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 06:55:11,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:11,647 INFO L93 Difference]: Finished difference Result 376 states and 402 transitions. [2022-11-19 06:55:11,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-19 06:55:11,648 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 7.018518518518518) internal successors, (379), 55 states have internal predecessors, (379), 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 185 [2022-11-19 06:55:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:11,649 INFO L225 Difference]: With dead ends: 376 [2022-11-19 06:55:11,650 INFO L226 Difference]: Without dead ends: 375 [2022-11-19 06:55:11,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1809, Invalid=2883, Unknown=0, NotChecked=0, Total=4692 [2022-11-19 06:55:11,652 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 180 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:11,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 58 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 06:55:11,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-19 06:55:11,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-11-19 06:55:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 374 states have (on average 1.0026737967914439) internal successors, (375), 374 states have internal predecessors, (375), 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 06:55:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 375 transitions. [2022-11-19 06:55:11,688 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 375 transitions. Word has length 185 [2022-11-19 06:55:11,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:11,688 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 375 transitions. [2022-11-19 06:55:11,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 7.018518518518518) internal successors, (379), 55 states have internal predecessors, (379), 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 06:55:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 375 transitions. [2022-11-19 06:55:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-19 06:55:11,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:11,696 INFO L195 NwaCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:11,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-19 06:55:11,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-19 06:55:11,902 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:55:11,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:11,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1091357218, now seen corresponding path program 2 times [2022-11-19 06:55:11,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:11,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550563164] [2022-11-19 06:55:11,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:11,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 0 proven. 9386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:55:15,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:15,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550563164] [2022-11-19 06:55:15,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550563164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:15,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264404110] [2022-11-19 06:55:15,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:55:15,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:15,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:15,621 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:15,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 06:55:15,719 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 06:55:15,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:55:15,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 06:55:15,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 102 proven. 155 refuted. 0 times theorem prover too weak. 9129 trivial. 0 not checked. [2022-11-19 06:55:16,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 0 proven. 257 refuted. 0 times theorem prover too weak. 9129 trivial. 0 not checked. [2022-11-19 06:55:17,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264404110] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:17,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [797186556] [2022-11-19 06:55:17,151 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-19 06:55:17,151 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:17,151 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:17,152 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:17,152 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:17,609 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:19,847 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14474#(and (< 2147483646 |ULTIMATE.start_main_~main__t~0#1|) (<= ~__tmp_383_0~0 0) (= ~__tmp_259_0~0 0) (<= 0 ~__tmp_383_0~0) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (= ~__return_305~0 0) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) (= ~__return_main~0 0) (= |#NULL.base| 0))' at error location [2022-11-19 06:55:19,847 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:55:19,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:19,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 5, 5] total 63 [2022-11-19 06:55:19,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662725132] [2022-11-19 06:55:19,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:55:19,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-19 06:55:19,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:19,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-19 06:55:19,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2131, Invalid=3875, Unknown=0, NotChecked=0, Total=6006 [2022-11-19 06:55:19,851 INFO L87 Difference]: Start difference. First operand 375 states and 375 transitions. Second operand has 64 states, 63 states have (on average 6.603174603174603) internal successors, (416), 64 states have internal predecessors, (416), 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 06:55:26,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:26,155 INFO L93 Difference]: Finished difference Result 387 states and 388 transitions. [2022-11-19 06:55:26,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-11-19 06:55:26,156 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 6.603174603174603) internal successors, (416), 64 states have internal predecessors, (416), 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 374 [2022-11-19 06:55:26,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:26,157 INFO L225 Difference]: With dead ends: 387 [2022-11-19 06:55:26,157 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:55:26,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1287 GetRequests, 1097 SyntacticMatches, 1 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10468 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=10664, Invalid=25626, Unknown=0, NotChecked=0, Total=36290 [2022-11-19 06:55:26,162 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 1606 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:26,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 2 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 06:55:26,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:55:26,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:55:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:26,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:55:26,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2022-11-19 06:55:26,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:26,164 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:55:26,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 6.603174603174603) internal successors, (416), 64 states have internal predecessors, (416), 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 06:55:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:55:26,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:55:26,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-19 06:55:26,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-19 06:55:26,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-19 06:55:26,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-19 06:55:26,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-19 06:55:26,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-19 06:55:26,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-19 06:55:26,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-19 06:55:26,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-19 06:55:26,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-19 06:55:26,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-19 06:55:26,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:26,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 06:55:52,777 WARN L233 SmtUtils]: Spent 24.93s on a formula simplification. DAG size of input: 535 DAG size of output: 535 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-19 06:56:05,672 WARN L233 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 535 DAG size of output: 9 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-19 06:56:09,617 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-11-19 06:56:09,617 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2022-11-19 06:56:09,617 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-11-19 06:56:09,617 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-19 06:56:09,617 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 06:56:09,617 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-11-19 06:56:09,617 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-11-19 06:56:09,617 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-11-19 06:56:09,618 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2022-11-19 06:56:09,618 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2022-11-19 06:56:09,618 INFO L895 garLoopResultBuilder]: At program point L400(lines 15 402) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483647) [2022-11-19 06:56:09,618 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-11-19 06:56:09,618 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2022-11-19 06:56:09,618 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-11-19 06:56:09,618 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-19 06:56:09,618 INFO L899 garLoopResultBuilder]: For program point L194-1(line 194) no Hoare annotation was computed. [2022-11-19 06:56:09,619 INFO L895 garLoopResultBuilder]: At program point L384(lines 282 391) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= ~__tmp_259_0~0 0)) (.cse2 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse3 (= 2 (select |#length| 1))) (.cse4 (= (select |#valid| 3) 1)) (.cse6 (= ~__return_305~0 0)) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) (.cse9 (= (select |#valid| 0) 0)) (.cse10 (= (select |#valid| 2) 1)) (.cse5 (ite (<= 0 |ULTIMATE.start_main_~main__t~0#1|) 1 0)) (.cse11 (= |#NULL.offset| 0)) (.cse12 (= (select .cse21 0) 48)) (.cse13 (= 33 (select |#length| 2))) (.cse14 (= (select .cse21 1) 0)) (.cse16 (ite (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|) 1 0)) (.cse15 (= ~__return_main~0 0)) (.cse17 (= ~__tmp_383_0~0 0)) (.cse18 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) (.cse19 (< 0 |#StackHeapBarrier|)) (.cse20 (= |#NULL.base| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~__tmp_19~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~18#1|) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (= |ULTIMATE.start_main_~__tmp_20~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (= |ULTIMATE.start_main_~__tmp_19~0#1| .cse5) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) .cse6 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__t~0#1|) .cse7 (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) .cse8 (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) .cse9 .cse10 .cse11 .cse12 .cse13 (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) .cse14 (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) .cse15 (= |ULTIMATE.start_main_~__tmp_20~0#1| .cse16) .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0) .cse20 (<= |ULTIMATE.start_main_~main__t~0#1| 2147483645)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 0) (= |ULTIMATE.start_main_~__tmp_14~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~__tmp_13~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) .cse4 (= |ULTIMATE.start_main_~main__t~0#1| 0) .cse6 .cse7 .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~__tmp_13~0#1| .cse5) .cse11 .cse12 .cse13 .cse14 (= |ULTIMATE.start_main_~__tmp_14~0#1| .cse16) .cse15 .cse17 .cse18 .cse19 .cse20)))) [2022-11-19 06:56:09,620 INFO L895 garLoopResultBuilder]: At program point L351(lines 32 395) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse1 (ite (<= 0 |ULTIMATE.start_main_~main__t~0#1|) 1 0)) (.cse2 (= ~__return_305~0 0)) (.cse5 (ite (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|) 1 0)) (.cse3 (= |#NULL.offset| 0)) (.cse6 (= ~__return_main~0 0)) (.cse7 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) (.cse8 (= |#NULL.base| 0))) (or (let ((.cse4 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483648)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| |ULTIMATE.start_main_~__tmp_2~0#1|) .cse0 (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_~__tmp_1~0#1| .cse1) (= ~__tmp_259_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~main__t~0#1| 0) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 2147483647) .cse2 (= (select |#valid| 1) 1) (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse3 (= (select .cse4 0) 48) (= .cse5 |ULTIMATE.start_main_~__tmp_2~0#1|) (= 33 (select |#length| 2)) (= (select .cse4 1) 0) .cse6 (= ~__tmp_383_0~0 0) .cse7 (< 0 |#StackHeapBarrier|) .cse8 (not (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 0)))) (and (<= ~__tmp_383_0~0 0) (<= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483647) (<= 0 ~__tmp_383_0~0) (<= |ULTIMATE.start_main_~__tmp_14~0#1| 1) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1| 0)) (= |ULTIMATE.start_main_~__tmp_18~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|) (<= 0 |ULTIMATE.start_main_~__tmp_14~0#1|) .cse0 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (= |ULTIMATE.start_main_~__tmp_17~0#1| .cse1) .cse2 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__t~0#1|) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (= |ULTIMATE.start_main_~__tmp_18~0#1| .cse5) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) (= ~__tmp_383_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= |ULTIMATE.start_main_~__tmp_17~0#1| |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1|) .cse3 (<= 0 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 2147483648)) (not (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0)) (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) (<= 0 |#StackHeapBarrier|) .cse6 (= ~__tmp_259_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1|) .cse7 .cse8))) [2022-11-19 06:56:09,620 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2022-11-19 06:56:09,620 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2022-11-19 06:56:09,621 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2022-11-19 06:56:09,621 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2022-11-19 06:56:09,621 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-11-19 06:56:09,621 INFO L895 garLoopResultBuilder]: At program point L195(lines 56 253) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__t~0#1| 2147483646) (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__t~0#1|)) [2022-11-19 06:56:09,621 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2022-11-19 06:56:09,622 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2022-11-19 06:56:09,622 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2022-11-19 06:56:09,622 INFO L899 garLoopResultBuilder]: For program point L287(line 287) no Hoare annotation was computed. [2022-11-19 06:56:09,622 INFO L899 garLoopResultBuilder]: For program point L287-1(line 287) no Hoare annotation was computed. [2022-11-19 06:56:09,622 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-19 06:56:09,622 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-19 06:56:09,622 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2022-11-19 06:56:09,623 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2022-11-19 06:56:09,623 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2022-11-19 06:56:09,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-11-19 06:56:09,623 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2022-11-19 06:56:09,623 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2022-11-19 06:56:09,623 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2022-11-19 06:56:09,624 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2022-11-19 06:56:09,624 INFO L899 garLoopResultBuilder]: For program point L132-1(line 132) no Hoare annotation was computed. [2022-11-19 06:56:09,624 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 06:56:09,624 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2022-11-19 06:56:09,624 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-11-19 06:56:09,624 INFO L895 garLoopResultBuilder]: At program point L314(lines 32 395) the Hoare annotation is: (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483647) [2022-11-19 06:56:09,625 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2022-11-19 06:56:09,625 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2022-11-19 06:56:09,625 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2022-11-19 06:56:09,625 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2022-11-19 06:56:09,625 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2022-11-19 06:56:09,625 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2022-11-19 06:56:09,625 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2022-11-19 06:56:09,626 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-11-19 06:56:09,626 INFO L895 garLoopResultBuilder]: At program point L249(lines 101 251) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) [2022-11-19 06:56:09,626 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2022-11-19 06:56:09,626 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-11-19 06:56:09,626 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2022-11-19 06:56:09,627 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2022-11-19 06:56:09,630 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:09,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:56:09,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:56:09 BoogieIcfgContainer [2022-11-19 06:56:09,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:56:09,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:56:09,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:56:09,659 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:56:09,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:53:19" (3/4) ... [2022-11-19 06:56:09,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:56:09,674 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 06:56:09,674 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 06:56:09,675 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 06:56:09,675 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:56:09,749 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:56:09,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:56:09,750 INFO L158 Benchmark]: Toolchain (without parser) took 171360.06ms. Allocated memory was 115.3MB in the beginning and 809.5MB in the end (delta: 694.2MB). Free memory was 79.4MB in the beginning and 295.1MB in the end (delta: -215.7MB). Peak memory consumption was 477.0MB. Max. memory is 16.1GB. [2022-11-19 06:56:09,751 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:56:09,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.16ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 84.0MB in the end (delta: -4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:56:09,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.85ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 81.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:56:09,752 INFO L158 Benchmark]: Boogie Preprocessor took 40.43ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 80.3MB in the end (delta: 963.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:56:09,753 INFO L158 Benchmark]: RCFGBuilder took 582.17ms. Allocated memory is still 115.3MB. Free memory was 80.3MB in the beginning and 63.0MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 06:56:09,754 INFO L158 Benchmark]: TraceAbstraction took 170132.60ms. Allocated memory was 115.3MB in the beginning and 809.5MB in the end (delta: 694.2MB). Free memory was 62.4MB in the beginning and 299.3MB in the end (delta: -236.9MB). Peak memory consumption was 482.2MB. Max. memory is 16.1GB. [2022-11-19 06:56:09,754 INFO L158 Benchmark]: Witness Printer took 90.95ms. Allocated memory is still 809.5MB. Free memory was 299.3MB in the beginning and 295.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 06:56:09,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.16ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 84.0MB in the end (delta: -4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.85ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 81.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.43ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 80.3MB in the end (delta: 963.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.17ms. Allocated memory is still 115.3MB. Free memory was 80.3MB in the beginning and 63.0MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 170132.60ms. Allocated memory was 115.3MB in the beginning and 809.5MB in the end (delta: 694.2MB). Free memory was 62.4MB in the beginning and 299.3MB in the end (delta: -236.9MB). Peak memory consumption was 482.2MB. Max. memory is 16.1GB. * Witness Printer took 90.95ms. Allocated memory is still 809.5MB. Free memory was 299.3MB in the beginning and 295.1MB 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 194]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 194]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 287]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 287]: 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 1 procedures, 57 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 170.0s, OverallIterations: 15, TraceHistogramMax: 53, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 42.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 43.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8835 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8835 mSDsluCounter, 979 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 687 mSDsCounter, 1208 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5157 IncrementalHoareTripleChecker+Invalid, 6365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1208 mSolverCounterUnsat, 292 mSDtfsCounter, 5157 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3201 GetRequests, 2511 SyntacticMatches, 16 SemanticMatches, 674 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27186 ImplicationChecksByTransitivity, 89.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=862occurred in iteration=12, InterpolantAutomatonStates: 444, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 546 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 230 NumberOfFragments, 505 HoareAnnotationTreeSize, 6 FomulaSimplifications, 7821 FormulaSimplificationTreeSizeReduction, 29.7s HoareSimplificationTime, 6 FomulaSimplificationsInter, 330413 FormulaSimplificationTreeSizeReductionInter, 13.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 1967 NumberOfCodeBlocks, 1486 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2867 ConstructedInterpolants, 0 QuantifiedInterpolants, 8609 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1891 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 31 InterpolantComputations, 7 PerfectInterpolantSequences, 19468/36693 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: 8.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 94, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 206, TOOLS_POST_TIME: 7.3s, 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: 206, TOOLS_QUANTIFIERELIM_TIME: 7.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 320, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.5s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 94, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 5.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, 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: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 2184, DAG_COMPRESSION_RETAINED_NODES: 248, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((__VERIFIER_assert__cond == __tmp_1 && 0 <= main____CPAchecker_TMP_0 + 2147483648) && unknown-#length-unknown[3] == 12) && __VERIFIER_assert__cond == __tmp_2) && main__tagbuf_len <= 2147483646) && 2 == unknown-#length-unknown[1]) && __tmp_1 == (if 0 <= main__t then 1 else 0)) && __tmp_259_0 == main____CPAchecker_TMP_0) && \valid[3] == 1) && main__t == 0) && main____CPAchecker_TMP_0 <= 2147483647) && __return_305 == 0) && \valid[1] == 1) && 0 <= main__tagbuf_len) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && (if main__t <= main__tagbuf_len then 1 else 0) == __tmp_2) && 33 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && __tmp_383_0 == 0) && !(main__t == main__tagbuf_len)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && !(main____CPAchecker_TMP_0 == 0)) || ((((((((((((((((((((((((((((__tmp_383_0 <= 0 && main____CPAchecker_TMP_0 <= 2147483647) && 0 <= __tmp_383_0) && __tmp_14 <= 1) && !(__VERIFIER_assert__cond == 0)) && __tmp_18 == __VERIFIER_assert__cond) && 0 <= __tmp_14) && main__tagbuf_len <= 2147483646) && __VERIFIER_assert__cond <= 1) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __tmp_17 == (if 0 <= main__t then 1 else 0)) && __return_305 == 0) && main____CPAchecker_TMP_1 + 1 == main__t) && 0 <= main____CPAchecker_TMP_1) && __tmp_18 == (if main__t <= main__tagbuf_len then 1 else 0)) && 0 <= __tmp_13) && __tmp_383_0 == main____CPAchecker_TMP_0) && __tmp_17 == __VERIFIER_assert__cond) && #NULL == 0) && 0 <= main____CPAchecker_TMP_0 + 2147483648) && !(main____CPAchecker_TMP_0 == 0)) && __tmp_13 <= 1) && 0 <= __VERIFIER_assert__cond) && 0 <= unknown-#StackHeapBarrier-unknown) && __return_main == 0) && __tmp_259_0 == main____CPAchecker_TMP_0) && !(main__t == main__tagbuf_len)) && #NULL == 0) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (main__tagbuf_len <= 2147483646 && 1 <= main__t) && !(main__t == main__tagbuf_len) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (main__t <= 2147483646 && main__tagbuf_len <= 2147483646) && 1 <= main__t - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: main__tagbuf_len <= 2147483647 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && __tmp_259_0 == 0) && __tmp_19 == __VERIFIER_assert__cond) && __tmp_14 <= 1) && __tmp_20 == __VERIFIER_assert__cond) && 0 <= __tmp_14) && main__tagbuf_len <= 2147483646) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && __VERIFIER_assert__cond <= 1) && __tmp_19 == (if 0 <= main__t then 1 else 0)) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __return_305 == 0) && main____CPAchecker_TMP_1 + 1 == main__t) && \valid[1] == 1) && 0 <= main____CPAchecker_TMP_1) && 0 <= main__tagbuf_len) && 0 <= __tmp_13) && __tmp_383_0 == main____CPAchecker_TMP_0) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 33 == unknown-#length-unknown[2]) && __tmp_13 <= 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 <= __VERIFIER_assert__cond) && __return_main == 0) && __tmp_20 == (if main__t <= main__tagbuf_len then 1 else 0)) && __tmp_383_0 == 0) && !(main__t == main__tagbuf_len)) && 0 < unknown-#StackHeapBarrier-unknown) && main____CPAchecker_TMP_0 == 0) && #NULL == 0) && main__t <= 2147483645) || ((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && __tmp_259_0 == 0) && main____CPAchecker_TMP_0 == 0) && __tmp_14 == __VERIFIER_assert__cond) && main__tagbuf_len <= 2147483646) && 2 == unknown-#length-unknown[1]) && __tmp_13 == __VERIFIER_assert__cond) && \valid[3] == 1) && main__t == 0) && __return_305 == 0) && \valid[1] == 1) && 0 <= main__tagbuf_len) && \valid[0] == 0) && \valid[2] == 1) && __tmp_13 == (if 0 <= main__t then 1 else 0)) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 33 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && __tmp_14 == (if main__t <= main__tagbuf_len then 1 else 0)) && __return_main == 0) && __tmp_383_0 == 0) && !(main__t == main__tagbuf_len)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: main__tagbuf_len <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-19 06:56:09,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5e11c9e-cf8f-4c85-a51f-7848a3ae2900/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