./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:47:03,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:47:03,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:47:03,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:47:03,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:47:03,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:47:03,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:47:03,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:47:03,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:47:03,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:47:03,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:47:03,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:47:03,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:47:03,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:47:03,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:47:03,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:47:03,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:47:03,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:47:03,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:47:03,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:47:03,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:47:03,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:47:03,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:47:03,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:47:03,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:47:03,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:47:03,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:47:03,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:47:03,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:47:03,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:47:03,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:47:03,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:47:03,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:47:03,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:47:03,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:47:03,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:47:03,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:47:03,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:47:03,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:47:03,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:47:03,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:47:03,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 06:47:03,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:47:03,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:47:03,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:47:03,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:47:03,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:47:03,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:47:03,649 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:47:03,649 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:47:03,650 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:47:03,650 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:47:03,651 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:47:03,652 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:47:03,652 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:47:03,652 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:47:03,653 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:47:03,653 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:47:03,653 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:47:03,654 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:47:03,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:47:03,655 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:47:03,655 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:47:03,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:47:03,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:47:03,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:47:03,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:47:03,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:47:03,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:47:03,658 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 06:47:03,658 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:47:03,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:47:03,659 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:47:03,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:47:03,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:47:03,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:47:03,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:47:03,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:47:03,660 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:47:03,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:47:03,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:47:03,661 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:47:03,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:47:03,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:47:03,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:47:03,662 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_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2022-11-19 06:47:03,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:47:04,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:47:04,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:47:04,009 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:47:04,010 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:47:04,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2022-11-19 06:47:04,097 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/data/75a79388d/f66a9f60987b4a47b4194920dda170fa/FLAG8b64b0d24 [2022-11-19 06:47:04,827 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:47:04,828 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2022-11-19 06:47:04,854 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/data/75a79388d/f66a9f60987b4a47b4194920dda170fa/FLAG8b64b0d24 [2022-11-19 06:47:04,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/data/75a79388d/f66a9f60987b4a47b4194920dda170fa [2022-11-19 06:47:04,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:47:04,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:47:04,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:47:04,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:47:04,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:47:04,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:47:04" (1/1) ... [2022-11-19 06:47:04,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78132d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:04, skipping insertion in model container [2022-11-19 06:47:04,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:47:04" (1/1) ... [2022-11-19 06:47:05,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:47:05,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:47:05,805 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2022-11-19 06:47:05,827 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2022-11-19 06:47:05,979 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2022-11-19 06:47:05,980 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2022-11-19 06:47:05,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:47:06,005 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:47:06,052 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2022-11-19 06:47:06,054 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2022-11-19 06:47:06,131 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2022-11-19 06:47:06,132 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2022-11-19 06:47:06,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:47:06,214 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:47:06,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06 WrapperNode [2022-11-19 06:47:06,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:47:06,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:47:06,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:47:06,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:47:06,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,405 INFO L138 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1046 [2022-11-19 06:47:06,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:47:06,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:47:06,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:47:06,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:47:06,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,575 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:47:06,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:47:06,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:47:06,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:47:06,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (1/1) ... [2022-11-19 06:47:06,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:47:06,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:06,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:47:06,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:47:06,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:47:06,721 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 06:47:06,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:47:06,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:47:06,722 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-11-19 06:47:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-11-19 06:47:06,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:47:06,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 06:47:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 06:47:06,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:47:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:47:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:47:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-11-19 06:47:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-11-19 06:47:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:47:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-11-19 06:47:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-11-19 06:47:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:47:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:47:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:47:07,085 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:47:07,088 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:47:08,971 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:47:09,528 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:47:09,528 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-19 06:47:09,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:47:09 BoogieIcfgContainer [2022-11-19 06:47:09,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:47:09,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:47:09,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:47:09,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:47:09,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:47:04" (1/3) ... [2022-11-19 06:47:09,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e04e015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:47:09, skipping insertion in model container [2022-11-19 06:47:09,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:06" (2/3) ... [2022-11-19 06:47:09,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e04e015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:47:09, skipping insertion in model container [2022-11-19 06:47:09,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:47:09" (3/3) ... [2022-11-19 06:47:09,541 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2022-11-19 06:47:09,572 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:47:09,572 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-19 06:47:09,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:47:09,673 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;@2d2986dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:47:09,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-19 06:47:09,678 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 06:47:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:47:09,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:09,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:47:09,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:47:09,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:09,694 INFO L85 PathProgramCache]: Analyzing trace with hash 27183590, now seen corresponding path program 1 times [2022-11-19 06:47:09,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:09,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191593628] [2022-11-19 06:47:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:09,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:09,841 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:47:09,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891727340] [2022-11-19 06:47:09,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:09,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:09,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:09,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:47:09,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:47:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:10,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 06:47:10,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:10,280 INFO L321 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-19 06:47:10,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-19 06:47:10,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 06:47:10,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 06:47:10,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-19 06:47:10,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 06:47:10,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:47:10,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:10,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-19 06:47:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:10,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:47:10,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:10,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191593628] [2022-11-19 06:47:10,607 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:47:10,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891727340] [2022-11-19 06:47:10,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891727340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:10,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:10,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:47:10,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112990090] [2022-11-19 06:47:10,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:10,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:47:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:10,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:47:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:47:10,678 INFO L87 Difference]: Start difference. First operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:47:12,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:14,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:14,848 INFO L93 Difference]: Finished difference Result 376 states and 608 transitions. [2022-11-19 06:47:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:47:14,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 06:47:14,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:14,865 INFO L225 Difference]: With dead ends: 376 [2022-11-19 06:47:14,865 INFO L226 Difference]: Without dead ends: 206 [2022-11-19 06:47:14,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:47:14,873 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 64 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:14,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 416 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 06:47:14,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-19 06:47:14,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 153. [2022-11-19 06:47:14,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 125 states have (on average 1.256) internal successors, (157), 139 states have internal predecessors, (157), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-19 06:47:14,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2022-11-19 06:47:14,983 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 4 [2022-11-19 06:47:14,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:14,984 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2022-11-19 06:47:14,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:47:14,987 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2022-11-19 06:47:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 06:47:14,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:14,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:15,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:47:15,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 06:47:15,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:47:15,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:15,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1012993337, now seen corresponding path program 1 times [2022-11-19 06:47:15,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:15,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337360208] [2022-11-19 06:47:15,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:15,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:15,277 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:47:15,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504765556] [2022-11-19 06:47:15,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:15,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:15,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:15,282 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:47:15,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:47:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:15,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:47:15,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:15,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:47:15,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:15,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337360208] [2022-11-19 06:47:15,733 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:47:15,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504765556] [2022-11-19 06:47:15,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504765556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:15,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:15,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:47:15,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052692053] [2022-11-19 06:47:15,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:15,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:47:15,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:15,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:47:15,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:47:15,747 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:47:18,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:20,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:20,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:20,763 INFO L93 Difference]: Finished difference Result 261 states and 302 transitions. [2022-11-19 06:47:20,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:47:20,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 06:47:20,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:20,770 INFO L225 Difference]: With dead ends: 261 [2022-11-19 06:47:20,771 INFO L226 Difference]: Without dead ends: 259 [2022-11-19 06:47:20,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:47:20,772 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 106 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:20,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 446 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 06:47:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-19 06:47:20,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2022-11-19 06:47:20,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 216 states have (on average 1.25) internal successors, (270), 231 states have internal predecessors, (270), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 06:47:20,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2022-11-19 06:47:20,803 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 18 [2022-11-19 06:47:20,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:20,804 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2022-11-19 06:47:20,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:47:20,805 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2022-11-19 06:47:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 06:47:20,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:20,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:20,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:47:21,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-19 06:47:21,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:47:21,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:21,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1338022341, now seen corresponding path program 1 times [2022-11-19 06:47:21,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:21,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093634878] [2022-11-19 06:47:21,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:21,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:21,089 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:47:21,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [179549571] [2022-11-19 06:47:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:21,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:21,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:21,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:47:21,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:47:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:21,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:47:21,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:21,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:47:21,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:21,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093634878] [2022-11-19 06:47:21,521 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:47:21,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179549571] [2022-11-19 06:47:21,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179549571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:21,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:21,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:47:21,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312327828] [2022-11-19 06:47:21,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:21,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:47:21,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:21,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:47:21,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:47:21,532 INFO L87 Difference]: Start difference. First operand 249 states and 298 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:47:23,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:25,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:25,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:25,846 INFO L93 Difference]: Finished difference Result 441 states and 532 transitions. [2022-11-19 06:47:25,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:47:25,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 06:47:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:25,856 INFO L225 Difference]: With dead ends: 441 [2022-11-19 06:47:25,857 INFO L226 Difference]: Without dead ends: 439 [2022-11-19 06:47:25,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:47:25,859 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 147 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:25,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 454 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 06:47:25,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-11-19 06:47:25,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2022-11-19 06:47:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.25) internal successors, (480), 400 states have internal predecessors, (480), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2022-11-19 06:47:25,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 529 transitions. [2022-11-19 06:47:25,909 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 529 transitions. Word has length 19 [2022-11-19 06:47:25,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:25,909 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 529 transitions. [2022-11-19 06:47:25,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:47:25,910 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 529 transitions. [2022-11-19 06:47:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 06:47:25,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:25,912 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] [2022-11-19 06:47:25,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:47:26,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:26,120 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:47:26,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:26,121 INFO L85 PathProgramCache]: Analyzing trace with hash -587835803, now seen corresponding path program 1 times [2022-11-19 06:47:26,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:26,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862978734] [2022-11-19 06:47:26,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:26,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:26,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:26,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:26,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862978734] [2022-11-19 06:47:26,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862978734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:26,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:26,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:47:26,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430355647] [2022-11-19 06:47:26,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:26,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:47:26,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:26,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:47:26,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:47:26,643 INFO L87 Difference]: Start difference. First operand 428 states and 529 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 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) [2022-11-19 06:47:29,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:30,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:30,444 INFO L93 Difference]: Finished difference Result 682 states and 842 transitions. [2022-11-19 06:47:30,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:47:30,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 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 [2022-11-19 06:47:30,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:30,452 INFO L225 Difference]: With dead ends: 682 [2022-11-19 06:47:30,452 INFO L226 Difference]: Without dead ends: 562 [2022-11-19 06:47:30,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:47:30,455 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:30,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 408 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-19 06:47:30,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-11-19 06:47:30,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 428. [2022-11-19 06:47:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 400 states have internal predecessors, (479), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2022-11-19 06:47:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 528 transitions. [2022-11-19 06:47:30,549 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 528 transitions. Word has length 24 [2022-11-19 06:47:30,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:30,550 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 528 transitions. [2022-11-19 06:47:30,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 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) [2022-11-19 06:47:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 528 transitions. [2022-11-19 06:47:30,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 06:47:30,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:30,552 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] [2022-11-19 06:47:30,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:47:30,552 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:47:30,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:30,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1768029670, now seen corresponding path program 1 times [2022-11-19 06:47:30,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:30,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653828737] [2022-11-19 06:47:30,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:30,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:30,594 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:47:30,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161872014] [2022-11-19 06:47:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:30,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:30,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:30,596 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:47:30,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:47:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:30,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 06:47:30,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:31,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:31,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:47:31,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:31,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653828737] [2022-11-19 06:47:31,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:47:31,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161872014] [2022-11-19 06:47:31,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161872014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:31,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:31,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 06:47:31,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8429587] [2022-11-19 06:47:31,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:31,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:47:31,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:31,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:47:31,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:31,046 INFO L87 Difference]: Start difference. First operand 428 states and 528 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:47:31,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:31,900 INFO L93 Difference]: Finished difference Result 454 states and 548 transitions. [2022-11-19 06:47:31,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:47:31,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-11-19 06:47:31,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:31,906 INFO L225 Difference]: With dead ends: 454 [2022-11-19 06:47:31,906 INFO L226 Difference]: Without dead ends: 453 [2022-11-19 06:47:31,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:31,908 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 112 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:31,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 306 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 06:47:31,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-19 06:47:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2022-11-19 06:47:31,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 394 states have (on average 1.2436548223350254) internal successors, (490), 411 states have internal predecessors, (490), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2022-11-19 06:47:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 545 transitions. [2022-11-19 06:47:31,940 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 545 transitions. Word has length 27 [2022-11-19 06:47:31,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:31,941 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 545 transitions. [2022-11-19 06:47:31,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:47:31,941 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 545 transitions. [2022-11-19 06:47:31,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 06:47:31,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:31,943 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] [2022-11-19 06:47:31,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 06:47:32,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:32,156 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:47:32,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:32,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1025655139, now seen corresponding path program 1 times [2022-11-19 06:47:32,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:32,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716735253] [2022-11-19 06:47:32,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:32,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:32,214 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:47:32,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370293911] [2022-11-19 06:47:32,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:32,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:32,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:32,219 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:47:32,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 06:47:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:32,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 06:47:32,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:32,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:47:32,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:32,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716735253] [2022-11-19 06:47:32,641 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:47:32,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370293911] [2022-11-19 06:47:32,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370293911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:32,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:32,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 06:47:32,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698249876] [2022-11-19 06:47:32,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:32,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:47:32,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:32,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:47:32,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:32,645 INFO L87 Difference]: Start difference. First operand 443 states and 545 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:47:34,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:34,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:34,712 INFO L93 Difference]: Finished difference Result 443 states and 545 transitions. [2022-11-19 06:47:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:47:34,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-11-19 06:47:34,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:34,719 INFO L225 Difference]: With dead ends: 443 [2022-11-19 06:47:34,719 INFO L226 Difference]: Without dead ends: 442 [2022-11-19 06:47:34,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:34,720 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:34,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 148 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-19 06:47:34,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-11-19 06:47:34,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2022-11-19 06:47:34,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 394 states have (on average 1.2385786802030456) internal successors, (488), 410 states have internal predecessors, (488), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2022-11-19 06:47:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 543 transitions. [2022-11-19 06:47:34,753 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 543 transitions. Word has length 28 [2022-11-19 06:47:34,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:34,753 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 543 transitions. [2022-11-19 06:47:34,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:47:34,754 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 543 transitions. [2022-11-19 06:47:34,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 06:47:34,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:34,755 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] [2022-11-19 06:47:34,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-19 06:47:34,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:34,963 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:47:34,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:34,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1275924237, now seen corresponding path program 1 times [2022-11-19 06:47:34,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:34,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299356895] [2022-11-19 06:47:34,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:34,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:35,114 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:47:35,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824517855] [2022-11-19 06:47:35,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:35,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:35,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:35,117 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:47:35,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 06:47:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:36,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 1600 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:47:36,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:36,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:47:36,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:36,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299356895] [2022-11-19 06:47:36,139 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:47:36,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824517855] [2022-11-19 06:47:36,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824517855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:36,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:36,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:47:36,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515173707] [2022-11-19 06:47:36,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:36,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:47:36,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:36,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:47:36,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:36,142 INFO L87 Difference]: Start difference. First operand 442 states and 543 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:47:38,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:38,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:38,673 INFO L93 Difference]: Finished difference Result 814 states and 992 transitions. [2022-11-19 06:47:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:47:38,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 06:47:38,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:38,679 INFO L225 Difference]: With dead ends: 814 [2022-11-19 06:47:38,680 INFO L226 Difference]: Without dead ends: 377 [2022-11-19 06:47:38,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:38,682 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:38,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 282 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 06:47:38,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-11-19 06:47:38,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2022-11-19 06:47:38,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 326 states have (on average 1.2147239263803682) internal successors, (396), 341 states have internal predecessors, (396), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2022-11-19 06:47:38,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 441 transitions. [2022-11-19 06:47:38,708 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 441 transitions. Word has length 28 [2022-11-19 06:47:38,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:38,708 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 441 transitions. [2022-11-19 06:47:38,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:47:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 441 transitions. [2022-11-19 06:47:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 06:47:38,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:38,710 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2022-11-19 06:47:38,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 06:47:38,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:38,922 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:47:38,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:38,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1992948422, now seen corresponding path program 1 times [2022-11-19 06:47:38,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:38,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929247240] [2022-11-19 06:47:38,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:38,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:38,966 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:47:38,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610284054] [2022-11-19 06:47:38,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:38,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:47:38,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:38,968 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:47:38,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af43b7cf-54fc-493d-9c86-d89aa85cf687/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 06:47:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:39,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 06:47:39,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:39,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:47:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:39,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:39,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929247240] [2022-11-19 06:47:39,973 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:47:39,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610284054] [2022-11-19 06:47:39,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610284054] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:47:39,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1209958307] [2022-11-19 06:47:40,002 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-19 06:47:40,002 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:47:40,007 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:47:40,014 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:47:40,015 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:47:40,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,130 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:47:40,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 06:47:40,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2022-11-19 06:47:40,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 06:47:40,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:47:40,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:47:40,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 06:47:40,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,310 INFO L321 Elim1Store]: treesize reduction 34, result has 47.7 percent of original size [2022-11-19 06:47:40,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 65 [2022-11-19 06:47:40,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-19 06:47:40,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:47:40,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-11-19 06:47:40,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,487 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 06:47:40,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-11-19 06:47:40,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:47:40,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 40 [2022-11-19 06:47:40,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:47:40,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 163 [2022-11-19 06:47:40,758 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 06:47:40,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:40,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 34 [2022-11-19 06:47:40,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 06:47:40,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 06:47:41,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:47:41,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:41,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:41,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:41,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897170 treesize of output 8253224 [2022-11-19 06:47:42,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 201 [2022-11-19 06:47:42,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 8253076 treesize of output 5376288 [2022-11-19 06:47:42,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 06:47:42,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92192956 treesize of output 74109966 [2022-11-19 06:47:42,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:42,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90960030 treesize of output 74109978 [2022-11-19 06:47:43,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:43,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:47:43,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8664067 treesize of output 6198246 [2022-11-19 06:47:43,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:47:43,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:47:43,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 06:47:43,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 06:47:43,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-19 06:47:43,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 06:47:43,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:47:44,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-19 06:47:44,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-11-19 06:47:44,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-19 06:47:44,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-19 06:47:44,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92192985 treesize of output 74109977 [2022-11-19 06:47:44,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74109973 treesize of output 58903827 [2022-11-19 06:47:44,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 7225616 treesize of output 4759746 [2022-11-19 06:47:44,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:47:44,449 INFO L190 IndexEqualityManager]: detected not equals via solver