./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 2329fc70 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/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_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh --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-2329fc7 [2022-12-14 14:44:05,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:44:05,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:44:05,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:44:05,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:44:05,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:44:05,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:44:05,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:44:05,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:44:05,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:44:05,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:44:05,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:44:05,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:44:05,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:44:05,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:44:05,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:44:05,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:44:05,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:44:05,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:44:05,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:44:05,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:44:05,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:44:05,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:44:05,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:44:05,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:44:05,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:44:05,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:44:05,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:44:05,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:44:05,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:44:05,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:44:05,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:44:05,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:44:05,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:44:05,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:44:05,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:44:05,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:44:05,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:44:05,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:44:05,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:44:05,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:44:05,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 14:44:05,100 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:44:05,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:44:05,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:44:05,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:44:05,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:44:05,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:44:05,102 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:44:05,102 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:44:05,102 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:44:05,102 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:44:05,102 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:44:05,102 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:44:05,103 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:44:05,103 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:44:05,103 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:44:05,103 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:44:05,103 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:44:05,103 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:44:05,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:44:05,104 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:44:05,104 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:44:05,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:44:05,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:44:05,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:44:05,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:44:05,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:44:05,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:44:05,105 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:44:05,105 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:44:05,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:44:05,105 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:44:05,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:44:05,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:44:05,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:44:05,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:44:05,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:44:05,106 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:44:05,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:44:05,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:44:05,107 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:44:05,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:44:05,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:44:05,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:44:05,107 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2022-12-14 14:44:05,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:44:05,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:44:05,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:44:05,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:44:05,314 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:44:05,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-12-14 14:44:07,928 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:44:08,077 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:44:08,078 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-12-14 14:44:08,085 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/data/1c8d08e0e/be74adfd953f460da4fc2d0b00053a89/FLAG64866e589 [2022-12-14 14:44:08,099 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/data/1c8d08e0e/be74adfd953f460da4fc2d0b00053a89 [2022-12-14 14:44:08,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:44:08,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:44:08,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:44:08,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:44:08,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:44:08,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b27cb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08, skipping insertion in model container [2022-12-14 14:44:08,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:44:08,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:44:08,264 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-12-14 14:44:08,265 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-12-14 14:44:08,266 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-12-14 14:44:08,268 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-12-14 14:44:08,269 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-12-14 14:44:08,271 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-12-14 14:44:08,272 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-12-14 14:44:08,273 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-12-14 14:44:08,274 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-12-14 14:44:08,276 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-12-14 14:44:08,277 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-12-14 14:44:08,279 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-12-14 14:44:08,280 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-12-14 14:44:08,281 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-12-14 14:44:08,282 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-12-14 14:44:08,283 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-12-14 14:44:08,284 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-12-14 14:44:08,285 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-12-14 14:44:08,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:44:08,295 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:44:08,305 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-12-14 14:44:08,307 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-12-14 14:44:08,308 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-12-14 14:44:08,309 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-12-14 14:44:08,310 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-12-14 14:44:08,311 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-12-14 14:44:08,312 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-12-14 14:44:08,313 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-12-14 14:44:08,315 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-12-14 14:44:08,316 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-12-14 14:44:08,317 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-12-14 14:44:08,318 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-12-14 14:44:08,320 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-12-14 14:44:08,320 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-12-14 14:44:08,322 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-12-14 14:44:08,322 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-12-14 14:44:08,323 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-12-14 14:44:08,324 WARN L237 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_f11df7aa-7019-42ec-acbd-54fe701e61a4/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-12-14 14:44:08,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:44:08,336 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:44:08,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08 WrapperNode [2022-12-14 14:44:08,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:44:08,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:44:08,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:44:08,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:44:08,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,366 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 254 [2022-12-14 14:44:08,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:44:08,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:44:08,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:44:08,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:44:08,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,381 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:44:08,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:44:08,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:44:08,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:44:08,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (1/1) ... [2022-12-14 14:44:08,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:44:08,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:44:08,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:44:08,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:44:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:44:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:44:08,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:44:08,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:44:08,511 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:44:08,512 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:44:08,710 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:44:08,732 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:44:08,732 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:44:08,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:44:08 BoogieIcfgContainer [2022-12-14 14:44:08,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:44:08,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:44:08,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:44:08,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:44:08,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:44:08" (1/3) ... [2022-12-14 14:44:08,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ae6ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:44:08, skipping insertion in model container [2022-12-14 14:44:08,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:44:08" (2/3) ... [2022-12-14 14:44:08,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ae6ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:44:08, skipping insertion in model container [2022-12-14 14:44:08,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:44:08" (3/3) ... [2022-12-14 14:44:08,743 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2022-12-14 14:44:08,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:44:08,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-12-14 14:44:08,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:44:08,813 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;@4a126d96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:44:08,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-14 14:44:08,817 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) [2022-12-14 14:44:08,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 14:44:08,821 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:08,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 14:44:08,822 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)] === [2022-12-14 14:44:08,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:08,826 INFO L85 PathProgramCache]: Analyzing trace with hash 207737, now seen corresponding path program 1 times [2022-12-14 14:44:08,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:08,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023796966] [2022-12-14 14:44:08,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:08,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:08,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:08,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023796966] [2022-12-14 14:44:08,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023796966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:08,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:44:08,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:44:08,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42920007] [2022-12-14 14:44:08,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:08,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:44:08,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:08,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:44:08,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:44:08,998 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), 3 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) [2022-12-14 14:44:09,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:09,048 INFO L93 Difference]: Finished difference Result 59 states and 87 transitions. [2022-12-14 14:44:09,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:44:09,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2022-12-14 14:44:09,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:09,056 INFO L225 Difference]: With dead ends: 59 [2022-12-14 14:44:09,056 INFO L226 Difference]: Without dead ends: 45 [2022-12-14 14:44:09,057 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 [2022-12-14 14:44:09,060 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:09,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 104 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:44:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-12-14 14:44:09,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-12-14 14:44:09,082 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) [2022-12-14 14:44:09,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-12-14 14:44:09,083 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 3 [2022-12-14 14:44:09,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:09,084 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-12-14 14:44:09,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2022-12-14 14:44:09,084 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-12-14 14:44:09,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:44:09,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:09,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:44:09,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:44:09,085 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)] === [2022-12-14 14:44:09,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:09,085 INFO L85 PathProgramCache]: Analyzing trace with hash 6439886, now seen corresponding path program 1 times [2022-12-14 14:44:09,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:09,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945419774] [2022-12-14 14:44:09,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:09,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:09,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:09,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:09,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945419774] [2022-12-14 14:44:09,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945419774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:09,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:44:09,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:44:09,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384812924] [2022-12-14 14:44:09,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:09,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:44:09,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:44:09,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:44:09,122 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), 2 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) [2022-12-14 14:44:09,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:09,146 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-12-14 14:44:09,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:44:09,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2022-12-14 14:44:09,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:09,147 INFO L225 Difference]: With dead ends: 45 [2022-12-14 14:44:09,147 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 14:44:09,147 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 [2022-12-14 14:44:09,148 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:09,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 34 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:44:09,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 14:44:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 14:44:09,152 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) [2022-12-14 14:44:09,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-12-14 14:44:09,153 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 4 [2022-12-14 14:44:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:09,153 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-12-14 14:44:09,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-12-14 14:44:09,153 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-12-14 14:44:09,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 14:44:09,154 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:09,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:44:09,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:44:09,154 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)] === [2022-12-14 14:44:09,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:09,155 INFO L85 PathProgramCache]: Analyzing trace with hash -815022600, now seen corresponding path program 1 times [2022-12-14 14:44:09,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:09,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283009318] [2022-12-14 14:44:09,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:09,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:09,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:09,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:09,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283009318] [2022-12-14 14:44:09,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283009318] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:09,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:44:09,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:44:09,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053157823] [2022-12-14 14:44:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:09,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:44:09,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:09,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:44:09,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:44:09,206 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) [2022-12-14 14:44:09,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:09,258 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2022-12-14 14:44:09,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:44:09,259 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 [2022-12-14 14:44:09,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:09,260 INFO L225 Difference]: With dead ends: 54 [2022-12-14 14:44:09,260 INFO L226 Difference]: Without dead ends: 50 [2022-12-14 14:44:09,260 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 [2022-12-14 14:44:09,261 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, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:09,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 42 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:44:09,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-12-14 14:44:09,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-12-14 14:44:09,266 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) [2022-12-14 14:44:09,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-12-14 14:44:09,267 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 10 [2022-12-14 14:44:09,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:09,267 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-12-14 14:44:09,267 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) [2022-12-14 14:44:09,267 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-12-14 14:44:09,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:44:09,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:09,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:44:09,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:44:09,269 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)] === [2022-12-14 14:44:09,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:09,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2044534159, now seen corresponding path program 1 times [2022-12-14 14:44:09,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:09,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350731801] [2022-12-14 14:44:09,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:09,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:09,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:09,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350731801] [2022-12-14 14:44:09,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350731801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:09,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:44:09,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:44:09,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629190844] [2022-12-14 14:44:09,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:09,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:44:09,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:09,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:44:09,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:44:09,332 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) [2022-12-14 14:44:09,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:09,392 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-12-14 14:44:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:44:09,393 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 [2022-12-14 14:44:09,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:09,393 INFO L225 Difference]: With dead ends: 50 [2022-12-14 14:44:09,393 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 14:44:09,394 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 [2022-12-14 14:44:09,395 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 29 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 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 [2022-12-14 14:44:09,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 21 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:44:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 14:44:09,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 14:44:09,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 45 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:44:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-12-14 14:44:09,401 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2022-12-14 14:44:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:09,402 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-12-14 14:44:09,402 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) [2022-12-14 14:44:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-12-14 14:44:09,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 14:44:09,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:09,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:44:09,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:44:09,403 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)] === [2022-12-14 14:44:09,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:09,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1043950612, now seen corresponding path program 1 times [2022-12-14 14:44:09,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:09,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761565962] [2022-12-14 14:44:09,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:09,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:09,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:09,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761565962] [2022-12-14 14:44:09,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761565962] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:09,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:44:09,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:44:09,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615577396] [2022-12-14 14:44:09,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:09,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:44:09,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:09,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:44:09,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:44:09,478 INFO L87 Difference]: Start difference. First operand 46 states and 50 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) [2022-12-14 14:44:09,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:09,552 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2022-12-14 14:44:09,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:44:09,553 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 [2022-12-14 14:44:09,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:09,554 INFO L225 Difference]: With dead ends: 75 [2022-12-14 14:44:09,554 INFO L226 Difference]: Without dead ends: 71 [2022-12-14 14:44:09,554 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 [2022-12-14 14:44:09,555 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 23 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:09,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:44:09,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-12-14 14:44:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-12-14 14:44:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.164179104477612) 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) [2022-12-14 14:44:09,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2022-12-14 14:44:09,562 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 18 [2022-12-14 14:44:09,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:09,563 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2022-12-14 14:44:09,563 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) [2022-12-14 14:44:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2022-12-14 14:44:09,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 14:44:09,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:09,564 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] [2022-12-14 14:44:09,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:44:09,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 14:44:09,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:09,565 INFO L85 PathProgramCache]: Analyzing trace with hash -14686979, now seen corresponding path program 1 times [2022-12-14 14:44:09,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:09,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315534723] [2022-12-14 14:44:09,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:09,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:09,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:09,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:09,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315534723] [2022-12-14 14:44:09,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315534723] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:09,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:44:09,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:44:09,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608169103] [2022-12-14 14:44:09,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:09,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:44:09,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:09,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:44:09,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:44:09,646 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-12-14 14:44:09,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:09,722 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2022-12-14 14:44:09,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:44:09,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2022-12-14 14:44:09,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:09,723 INFO L225 Difference]: With dead ends: 101 [2022-12-14 14:44:09,723 INFO L226 Difference]: Without dead ends: 97 [2022-12-14 14:44:09,723 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 [2022-12-14 14:44:09,724 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 43 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:09,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 33 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:44:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-12-14 14:44:09,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-12-14 14:44:09,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 93 states have (on average 1.1505376344086022) internal successors, (107), 96 states have internal predecessors, (107), 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) [2022-12-14 14:44:09,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2022-12-14 14:44:09,730 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 24 [2022-12-14 14:44:09,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:09,730 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2022-12-14 14:44:09,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-12-14 14:44:09,730 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2022-12-14 14:44:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 14:44:09,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:09,731 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:44:09,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:44:09,731 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 14:44:09,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:09,732 INFO L85 PathProgramCache]: Analyzing trace with hash 379981726, now seen corresponding path program 1 times [2022-12-14 14:44:09,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:09,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343026654] [2022-12-14 14:44:09,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:09,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:09,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:09,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343026654] [2022-12-14 14:44:09,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343026654] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:44:09,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615189362] [2022-12-14 14:44:09,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:09,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:44:09,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:44:09,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:44:09,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:44:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:09,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 14:44:09,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:44:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:09,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:44:09,989 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:09,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615189362] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:44:09,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [498859623] [2022-12-14 14:44:10,005 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-12-14 14:44:10,006 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:44:10,009 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:44:10,014 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:44:10,014 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:44:12,299 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:44:16,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [498859623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:16,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:44:16,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [5, 5, 5] total 29 [2022-12-14 14:44:16,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980282602] [2022-12-14 14:44:16,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:16,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 14:44:16,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:16,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 14:44:16,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2022-12-14 14:44:16,410 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 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) [2022-12-14 14:44:23,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:23,173 INFO L93 Difference]: Finished difference Result 141 states and 155 transitions. [2022-12-14 14:44:23,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-14 14:44:23,173 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 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 31 [2022-12-14 14:44:23,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:23,174 INFO L225 Difference]: With dead ends: 141 [2022-12-14 14:44:23,174 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 14:44:23,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 65 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=409, Invalid=2141, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 14:44:23,175 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 49 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:23,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 55 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 14:44:23,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 14:44:23,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 111. [2022-12-14 14:44:23,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 107 states have (on average 1.158878504672897) internal successors, (124), 110 states have internal predecessors, (124), 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) [2022-12-14 14:44:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 124 transitions. [2022-12-14 14:44:23,184 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 124 transitions. Word has length 31 [2022-12-14 14:44:23,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:23,184 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 124 transitions. [2022-12-14 14:44:23,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 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) [2022-12-14 14:44:23,184 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 124 transitions. [2022-12-14 14:44:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 14:44:23,185 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:23,185 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, 1] [2022-12-14 14:44:23,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:44:23,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:44:23,387 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 14:44:23,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:23,388 INFO L85 PathProgramCache]: Analyzing trace with hash -837761354, now seen corresponding path program 1 times [2022-12-14 14:44:23,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:23,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594824013] [2022-12-14 14:44:23,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:23,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:23,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:23,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594824013] [2022-12-14 14:44:23,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594824013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:23,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:44:23,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:44:23,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333197143] [2022-12-14 14:44:23,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:23,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:44:23,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:23,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:44:23,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:44:23,466 INFO L87 Difference]: Start difference. First operand 111 states and 124 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-12-14 14:44:23,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:23,566 INFO L93 Difference]: Finished difference Result 164 states and 183 transitions. [2022-12-14 14:44:23,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:44:23,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2022-12-14 14:44:23,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:23,567 INFO L225 Difference]: With dead ends: 164 [2022-12-14 14:44:23,568 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 14:44:23,568 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 [2022-12-14 14:44:23,569 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 76 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:23,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 39 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:44:23,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 14:44:23,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 151. [2022-12-14 14:44:23,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 147 states have (on average 1.1496598639455782) internal successors, (169), 150 states have internal predecessors, (169), 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) [2022-12-14 14:44:23,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 169 transitions. [2022-12-14 14:44:23,583 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 169 transitions. Word has length 31 [2022-12-14 14:44:23,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:23,584 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 169 transitions. [2022-12-14 14:44:23,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-12-14 14:44:23,584 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 169 transitions. [2022-12-14 14:44:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 14:44:23,585 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:23,585 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, 1] [2022-12-14 14:44:23,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:44:23,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 14:44:23,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:23,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1959857861, now seen corresponding path program 1 times [2022-12-14 14:44:23,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:23,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296849507] [2022-12-14 14:44:23,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:23,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:23,650 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:23,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:23,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296849507] [2022-12-14 14:44:23,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296849507] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:44:23,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713068683] [2022-12-14 14:44:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:23,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:44:23,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:44:23,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:44:23,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:44:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:23,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 14:44:23,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:44:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:23,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:44:23,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:23,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713068683] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:44:23,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019613094] [2022-12-14 14:44:23,800 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-12-14 14:44:23,800 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:44:23,800 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:44:23,801 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:44:23,801 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:44:24,245 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:44:28,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2019613094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:28,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:44:28,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [6, 6, 6] total 39 [2022-12-14 14:44:28,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41061262] [2022-12-14 14:44:28,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:28,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 14:44:28,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:28,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 14:44:28,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1290, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 14:44:28,051 INFO L87 Difference]: Start difference. First operand 151 states and 169 transitions. Second operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:44:29,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:29,917 INFO L93 Difference]: Finished difference Result 219 states and 245 transitions. [2022-12-14 14:44:29,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 14:44:29,917 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-12-14 14:44:29,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:29,919 INFO L225 Difference]: With dead ends: 219 [2022-12-14 14:44:29,919 INFO L226 Difference]: Without dead ends: 215 [2022-12-14 14:44:29,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 887 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=358, Invalid=1898, Unknown=0, NotChecked=0, Total=2256 [2022-12-14 14:44:29,920 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 40 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:29,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 94 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 14:44:29,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-12-14 14:44:29,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 123. [2022-12-14 14:44:29,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 121 states have (on average 1.165289256198347) internal successors, (141), 122 states have internal predecessors, (141), 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) [2022-12-14 14:44:29,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2022-12-14 14:44:29,932 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 38 [2022-12-14 14:44:29,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:29,932 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2022-12-14 14:44:29,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:44:29,933 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2022-12-14 14:44:29,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 14:44:29,933 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:29,933 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-12-14 14:44:29,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:44:30,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 14:44:30,135 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 14:44:30,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:30,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1814070331, now seen corresponding path program 1 times [2022-12-14 14:44:30,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:30,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645055156] [2022-12-14 14:44:30,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:30,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:30,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:30,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645055156] [2022-12-14 14:44:30,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645055156] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:44:30,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890202881] [2022-12-14 14:44:30,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:30,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:44:30,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:44:30,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:44:30,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:44:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:30,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 14:44:30,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:44:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:30,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:44:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:30,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890202881] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:44:30,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [596492056] [2022-12-14 14:44:30,363 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-12-14 14:44:30,363 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:44:30,363 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:44:30,363 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:44:30,363 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:44:32,683 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:44:38,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [596492056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:44:38,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:44:38,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [6, 6, 6] total 36 [2022-12-14 14:44:38,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795932311] [2022-12-14 14:44:38,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:44:38,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 14:44:38,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:38,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 14:44:38,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 14:44:38,908 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 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) [2022-12-14 14:44:49,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:49,887 INFO L93 Difference]: Finished difference Result 180 states and 204 transitions. [2022-12-14 14:44:49,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-14 14:44:49,887 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 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 38 [2022-12-14 14:44:49,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:49,888 INFO L225 Difference]: With dead ends: 180 [2022-12-14 14:44:49,888 INFO L226 Difference]: Without dead ends: 178 [2022-12-14 14:44:49,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1255 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=514, Invalid=2792, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 14:44:49,890 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 71 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:49,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 89 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 14:44:49,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-14 14:44:49,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 126. [2022-12-14 14:44:49,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 124 states have (on average 1.1774193548387097) internal successors, (146), 125 states have internal predecessors, (146), 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) [2022-12-14 14:44:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 146 transitions. [2022-12-14 14:44:49,909 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 146 transitions. Word has length 38 [2022-12-14 14:44:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:49,909 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 146 transitions. [2022-12-14 14:44:49,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 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) [2022-12-14 14:44:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 146 transitions. [2022-12-14 14:44:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 14:44:49,910 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:49,910 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:44:49,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:44:50,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 14:44:50,112 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 14:44:50,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:50,114 INFO L85 PathProgramCache]: Analyzing trace with hash -614019432, now seen corresponding path program 1 times [2022-12-14 14:44:50,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:50,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742659564] [2022-12-14 14:44:50,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:50,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:50,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:50,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742659564] [2022-12-14 14:44:50,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742659564] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:44:50,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179488962] [2022-12-14 14:44:50,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:50,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:44:50,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:44:50,214 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:44:50,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:44:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:50,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 14:44:50,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:44:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:50,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:44:50,353 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:50,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179488962] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:44:50,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1624596912] [2022-12-14 14:44:50,355 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-12-14 14:44:50,355 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:44:50,356 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:44:50,356 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:44:50,356 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:44:51,627 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:44:54,213 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3393#(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 [2022-12-14 14:44:54,213 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:44:54,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:44:54,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-14 14:44:54,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957091986] [2022-12-14 14:44:54,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:44:54,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 14:44:54,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:54,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 14:44:54,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 14:44:54,216 INFO L87 Difference]: Start difference. First operand 126 states and 146 transitions. Second operand has 13 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 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) [2022-12-14 14:44:54,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:44:54,471 INFO L93 Difference]: Finished difference Result 543 states and 625 transitions. [2022-12-14 14:44:54,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 14:44:54,472 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 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 39 [2022-12-14 14:44:54,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:44:54,475 INFO L225 Difference]: With dead ends: 543 [2022-12-14 14:44:54,475 INFO L226 Difference]: Without dead ends: 541 [2022-12-14 14:44:54,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 14:44:54,476 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 281 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:44:54,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 73 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:44:54,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-12-14 14:44:54,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 366. [2022-12-14 14:44:54,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 364 states have (on average 1.1428571428571428) internal successors, (416), 365 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) [2022-12-14 14:44:54,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 416 transitions. [2022-12-14 14:44:54,519 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 416 transitions. Word has length 39 [2022-12-14 14:44:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:44:54,519 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 416 transitions. [2022-12-14 14:44:54,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 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) [2022-12-14 14:44:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 416 transitions. [2022-12-14 14:44:54,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 14:44:54,520 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:44:54,520 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:44:54,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 14:44:54,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:44:54,722 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 14:44:54,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:44:54,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1614416585, now seen corresponding path program 1 times [2022-12-14 14:44:54,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:44:54,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93776958] [2022-12-14 14:44:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:54,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:44:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:54,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:44:54,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93776958] [2022-12-14 14:44:54,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93776958] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:44:54,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182704074] [2022-12-14 14:44:54,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:44:54,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:44:54,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:44:54,893 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:44:54,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:44:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:44:54,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 14:44:54,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:44:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:55,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:44:55,236 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:44:55,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182704074] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:44:55,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2065242038] [2022-12-14 14:44:55,239 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-12-14 14:44:55,239 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:44:55,239 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:44:55,239 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:44:55,239 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:44:56,201 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:44:59,522 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4941#(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|) (= ~__return_main~0 0) (<= 0 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |#NULL.base| 0))' at error location [2022-12-14 14:44:59,522 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:44:59,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:44:59,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-12-14 14:44:59,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025820927] [2022-12-14 14:44:59,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:44:59,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 14:44:59,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:44:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 14:44:59,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=554, Invalid=2202, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 14:44:59,524 INFO L87 Difference]: Start difference. First operand 366 states and 416 transitions. Second operand has 25 states, 24 states have (on average 6.791666666666667) internal successors, (163), 25 states have internal predecessors, (163), 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) [2022-12-14 14:45:00,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:45:00,146 INFO L93 Difference]: Finished difference Result 1137 states and 1309 transitions. [2022-12-14 14:45:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 14:45:00,147 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.791666666666667) internal successors, (163), 25 states have internal predecessors, (163), 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 77 [2022-12-14 14:45:00,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:45:00,149 INFO L225 Difference]: With dead ends: 1137 [2022-12-14 14:45:00,149 INFO L226 Difference]: Without dead ends: 1135 [2022-12-14 14:45:00,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=554, Invalid=2202, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 14:45:00,150 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 846 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:45:00,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 151 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:45:00,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2022-12-14 14:45:00,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 846. [2022-12-14 14:45:00,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 844 states have (on average 1.132701421800948) internal successors, (956), 845 states have internal predecessors, (956), 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) [2022-12-14 14:45:00,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 956 transitions. [2022-12-14 14:45:00,254 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 956 transitions. Word has length 77 [2022-12-14 14:45:00,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:45:00,255 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 956 transitions. [2022-12-14 14:45:00,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.791666666666667) internal successors, (163), 25 states have internal predecessors, (163), 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) [2022-12-14 14:45:00,255 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 956 transitions. [2022-12-14 14:45:00,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-14 14:45:00,256 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:45:00,257 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:45:00,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 14:45:00,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:45:00,459 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 14:45:00,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:45:00,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1216431753, now seen corresponding path program 2 times [2022-12-14 14:45:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:45:00,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323533639] [2022-12-14 14:45:00,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:45:00,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:45:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:45:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:45:00,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:45:00,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323533639] [2022-12-14 14:45:00,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323533639] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:45:00,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153449642] [2022-12-14 14:45:00,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:45:00,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:45:00,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:45:00,958 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:45:00,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 14:45:01,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 14:45:01,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:45:01,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:45:01,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:45:01,220 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-12-14 14:45:01,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:45:01,445 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-12-14 14:45:01,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153449642] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:45:01,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1738705752] [2022-12-14 14:45:01,447 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-12-14 14:45:01,447 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:45:01,448 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:45:01,448 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:45:01,448 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:45:03,504 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:45:10,282 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8210#(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|) (= ~__return_main~0 0) (<= 0 |ULTIMATE.start_main_~__tmp_10~0#1|) (= |#NULL.base| 0))' at error location [2022-12-14 14:45:10,283 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 14:45:10,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:45:10,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 5, 5] total 33 [2022-12-14 14:45:10,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739698110] [2022-12-14 14:45:10,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:45:10,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-14 14:45:10,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:45:10,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-14 14:45:10,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=804, Invalid=2978, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 14:45:10,284 INFO L87 Difference]: Start difference. First operand 846 states and 956 transitions. Second operand has 34 states, 33 states have (on average 7.121212121212121) internal successors, (235), 34 states have internal predecessors, (235), 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) [2022-12-14 14:45:13,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:45:13,594 INFO L93 Difference]: Finished difference Result 1255 states and 1426 transitions. [2022-12-14 14:45:13,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-12-14 14:45:13,595 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 7.121212121212121) internal successors, (235), 34 states have internal predecessors, (235), 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 155 [2022-12-14 14:45:13,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:45:13,595 INFO L225 Difference]: With dead ends: 1255 [2022-12-14 14:45:13,595 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:45:13,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 426 SyntacticMatches, 1 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9269 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=5636, Invalid=19804, Unknown=0, NotChecked=0, Total=25440 [2022-12-14 14:45:13,600 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2911 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:45:13,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2911 Valid, 184 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:45:13,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:45:13,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:45:13,601 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) [2022-12-14 14:45:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:45:13,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2022-12-14 14:45:13,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:45:13,601 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:45:13,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 7.121212121212121) internal successors, (235), 34 states have internal predecessors, (235), 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) [2022-12-14 14:45:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:45:13,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:45:13,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-12-14 14:45:13,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-12-14 14:45:13,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-12-14 14:45:13,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-12-14 14:45:13,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-12-14 14:45:13,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-12-14 14:45:13,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-12-14 14:45:13,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-12-14 14:45:13,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-12-14 14:45:13,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-12-14 14:45:13,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 14:45:13,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 14:45:13,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:45:40,349 WARN L233 SmtUtils]: Spent 23.90s on a formula simplification. DAG size of input: 527 DAG size of output: 527 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 14:45:54,314 WARN L233 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 527 DAG size of output: 9 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-12-14 14:45:55,365 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-14 14:45:55,366 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2022-12-14 14:45:55,366 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 15 402) the Hoare annotation is: true [2022-12-14 14:45:55,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-12-14 14:45:55,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-14 14:45:55,366 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-12-14 14:45:55,366 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-12-14 14:45:55,366 INFO L895 garLoopResultBuilder]: At program point L284(lines 282 391) the Hoare annotation is: (let ((.cse20 (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 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse5 (ite (<= 0 |ULTIMATE.start_main_~main__t~0#1|) 1 0)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (= (select .cse20 0) 48)) (.cse12 (= 33 (select |#length| 2))) (.cse13 (= (select .cse20 1) 0)) (.cse15 (ite (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|) 1 0)) (.cse14 (= ~__return_main~0 0)) (.cse16 (= ~__tmp_383_0~0 0)) (.cse17 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) (.cse18 (< 0 |#StackHeapBarrier|)) (.cse19 (= |#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 (<= 1 |ULTIMATE.start_main_~main__t~0#1|) .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_~main____CPAchecker_TMP_0~0#1| 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1| 0)) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) .cse6 .cse7 (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1|) (<= 0 |ULTIMATE.start_main_~__tmp_13~0#1|) .cse8 .cse9 .cse10 .cse11 .cse12 (<= |ULTIMATE.start_main_~__tmp_13~0#1| 1) .cse13 (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1|) .cse14 (= |ULTIMATE.start_main_~__tmp_20~0#1| .cse15) .cse16 .cse17 .cse18 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0) .cse19) (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 (<= 0 |ULTIMATE.start_main_~main__tagbuf_len~0#1|) .cse8 .cse9 (= |ULTIMATE.start_main_~__tmp_13~0#1| .cse5) .cse10 .cse11 .cse12 .cse13 (= |ULTIMATE.start_main_~__tmp_14~0#1| .cse15) .cse14 .cse16 .cse17 .cse18 .cse19)))) [2022-12-14 14:45:55,366 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point L194-1(line 194) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2022-12-14 14:45:55,367 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2022-12-14 14:45:55,368 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-12-14 14:45:55,368 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:45:55,368 INFO L895 garLoopResultBuilder]: At program point $Ultimate##12(lines 63 252) 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|)) [2022-12-14 14:45:55,368 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2022-12-14 14:45:55,368 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2022-12-14 14:45:55,368 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2022-12-14 14:45:55,368 INFO L899 garLoopResultBuilder]: For program point L287(line 287) no Hoare annotation was computed. [2022-12-14 14:45:55,368 INFO L899 garLoopResultBuilder]: For program point L287-1(line 287) no Hoare annotation was computed. [2022-12-14 14:45:55,368 INFO L902 garLoopResultBuilder]: At program point L89(lines 32 395) the Hoare annotation is: true [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point L132-1(line 132) no Hoare annotation was computed. [2022-12-14 14:45:55,369 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:45:55,370 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2022-12-14 14:45:55,370 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-12-14 14:45:55,370 INFO L895 garLoopResultBuilder]: At program point L58(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 (<= 1 |ULTIMATE.start_main_~main__t~0#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_0~0#1| 0) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~12#1| 1) (<= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= |ULTIMATE.start_main_~__tmp_17~0#1| .cse1) .cse2 (<= 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|) (= |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))) [2022-12-14 14:45:55,370 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2022-12-14 14:45:55,370 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2022-12-14 14:45:55,370 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2022-12-14 14:45:55,370 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2022-12-14 14:45:55,371 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2022-12-14 14:45:55,371 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2022-12-14 14:45:55,371 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2022-12-14 14:45:55,371 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-14 14:45:55,371 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2022-12-14 14:45:55,371 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-12-14 14:45:55,371 INFO L895 garLoopResultBuilder]: At program point L167(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|))) [2022-12-14 14:45:55,371 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2022-12-14 14:45:55,371 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2022-12-14 14:45:55,374 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:45:55,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:45:55,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:45:55 BoogieIcfgContainer [2022-12-14 14:45:55,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:45:55,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:45:55,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:45:55,396 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:45:55,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:44:08" (3/4) ... [2022-12-14 14:45:55,399 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:45:55,409 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 14:45:55,409 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 14:45:55,410 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 14:45:55,410 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:45:55,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:45:55,457 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:45:55,457 INFO L158 Benchmark]: Toolchain (without parser) took 107354.18ms. Allocated memory was 123.7MB in the beginning and 413.1MB in the end (delta: 289.4MB). Free memory was 85.2MB in the beginning and 162.6MB in the end (delta: -77.4MB). Peak memory consumption was 213.8MB. Max. memory is 16.1GB. [2022-12-14 14:45:55,457 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:45:55,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.02ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 68.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:45:55,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.38ms. Allocated memory is still 123.7MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:45:55,458 INFO L158 Benchmark]: Boogie Preprocessor took 16.80ms. Allocated memory is still 123.7MB. Free memory was 66.4MB in the beginning and 65.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:45:55,458 INFO L158 Benchmark]: RCFGBuilder took 350.71ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 65.0MB in the beginning and 133.1MB in the end (delta: -68.1MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-12-14 14:45:55,459 INFO L158 Benchmark]: TraceAbstraction took 106657.59ms. Allocated memory was 163.6MB in the beginning and 413.1MB in the end (delta: 249.6MB). Free memory was 132.4MB in the beginning and 167.8MB in the end (delta: -35.4MB). Peak memory consumption was 262.8MB. Max. memory is 16.1GB. [2022-12-14 14:45:55,459 INFO L158 Benchmark]: Witness Printer took 61.25ms. Allocated memory is still 413.1MB. Free memory was 166.8MB in the beginning and 162.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:45:55,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.02ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 68.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.38ms. Allocated memory is still 123.7MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.80ms. Allocated memory is still 123.7MB. Free memory was 66.4MB in the beginning and 65.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.71ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 65.0MB in the beginning and 133.1MB in the end (delta: -68.1MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 106657.59ms. Allocated memory was 163.6MB in the beginning and 413.1MB in the end (delta: 249.6MB). Free memory was 132.4MB in the beginning and 167.8MB in the end (delta: -35.4MB). Peak memory consumption was 262.8MB. Max. memory is 16.1GB. * Witness Printer took 61.25ms. Allocated memory is still 413.1MB. Free memory was 166.8MB in the beginning and 162.6MB 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: 106.6s, OverallIterations: 13, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 24.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 41.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4421 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4421 mSDsluCounter, 947 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 656 mSDsCounter, 615 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4550 IncrementalHoareTripleChecker+Invalid, 5165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 615 mSolverCounterUnsat, 291 mSDtfsCounter, 4550 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1349 GetRequests, 936 SyntacticMatches, 8 SemanticMatches, 405 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14040 ImplicationChecksByTransitivity, 46.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=846occurred in iteration=12, InterpolantAutomatonStates: 269, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 645 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 202 NumberOfFragments, 501 HoareAnnotationTreeSize, 6 FomulaSimplifications, 9552 FormulaSimplificationTreeSizeReduction, 32.4s HoareSimplificationTime, 6 FomulaSimplificationsInter, 412245 FormulaSimplificationTreeSizeReductionInter, 9.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 863 NumberOfCodeBlocks, 739 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1216 ConstructedInterpolants, 0 QuantifiedInterpolants, 3634 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1063 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 1108/2130 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: 5.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 96, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 208, TOOLS_POST_TIME: 4.4s, 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: 208, TOOLS_QUANTIFIERELIM_TIME: 4.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 323, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 19, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 96, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 3.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.4s, 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: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 2235, DAG_COMPRESSION_RETAINED_NODES: 251, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (main__t <= 2147483646 && main__tagbuf_len <= 2147483646) && 1 <= main__t - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - 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]) && 1 <= main__t) && \valid[3] == 1) && __VERIFIER_assert__cond <= 1) && __tmp_19 == (if 0 <= main__t then 1 else 0)) && 0 <= __VERIFIER_assert__cond) && main____CPAchecker_TMP_0 <= 0) && __VERIFIER_assert__cond <= 1) && !(__VERIFIER_assert__cond == 0)) && 0 <= main____CPAchecker_TMP_0) && __return_305 == 0) && \valid[1] == 1) && 0 <= main____CPAchecker_TMP_1) && 0 <= __tmp_13) && \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) || ((((((((((((((((((((((((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: 101]: Loop Invariant Derived loop invariant: (main__tagbuf_len <= 2147483646 && 1 <= main__t) && !(main__t == main__tagbuf_len) - 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) && 1 <= main__t) && __VERIFIER_assert__cond <= 1) && 0 <= __VERIFIER_assert__cond) && main____CPAchecker_TMP_0 <= 0) && __VERIFIER_assert__cond <= 1) && 0 <= main____CPAchecker_TMP_0) && __tmp_17 == (if 0 <= main__t then 1 else 0)) && __return_305 == 0) && 0 <= main____CPAchecker_TMP_1) && __tmp_18 == (if main__t <= main__tagbuf_len then 1 else 0)) && 0 <= __tmp_13) && __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) RESULT: Ultimate proved your program to be correct! [2022-12-14 14:45:55,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f11df7aa-7019-42ec-acbd-54fe701e61a4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE