./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- 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 08:16:36,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:16:36,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:16:36,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:16:36,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:16:36,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:16:36,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:16:36,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:16:36,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:16:36,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:16:36,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:16:36,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:16:36,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:16:36,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:16:36,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:16:36,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:16:36,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:16:36,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:16:36,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:16:36,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:16:36,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:16:36,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:16:36,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:16:36,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:16:36,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:16:36,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:16:36,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:16:36,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:16:36,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:16:36,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:16:36,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:16:36,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:16:36,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:16:36,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:16:36,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:16:36,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:16:36,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:16:36,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:16:36,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:16:36,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:16:36,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:16:36,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:16:36,504 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:16:36,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:16:36,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:16:36,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:16:36,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:16:36,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:16:36,507 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:16:36,507 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:16:36,507 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:16:36,508 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:16:36,508 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:16:36,508 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:16:36,509 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:16:36,509 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:16:36,509 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:16:36,509 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:16:36,510 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:16:36,510 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:16:36,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:16:36,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:16:36,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:16:36,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:16:36,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:16:36,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:16:36,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:16:36,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:16:36,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:16:36,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:16:36,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:16:36,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:16:36,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:16:36,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:16:36,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:16:36,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:16:36,515 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:16:36,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:16:36,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:16:36,516 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:16:36,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:16:36,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:16:36,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:16:36,517 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2022-11-19 08:16:36,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:16:36,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:16:36,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:16:36,852 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:16:36,853 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:16:36,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2022-11-19 08:16:36,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/data/654d220be/2d6bb8a503934839a9f9f867bd9c813e/FLAG1a5a244f7 [2022-11-19 08:16:37,596 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:16:37,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2022-11-19 08:16:37,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/data/654d220be/2d6bb8a503934839a9f9f867bd9c813e/FLAG1a5a244f7 [2022-11-19 08:16:37,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/data/654d220be/2d6bb8a503934839a9f9f867bd9c813e [2022-11-19 08:16:37,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:16:37,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:16:37,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:16:37,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:16:37,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:16:37,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:16:37" (1/1) ... [2022-11-19 08:16:37,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4719b10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:37, skipping insertion in model container [2022-11-19 08:16:37,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:16:37" (1/1) ... [2022-11-19 08:16:37,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:16:37,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:16:38,687 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2022-11-19 08:16:38,704 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2022-11-19 08:16:38,849 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2022-11-19 08:16:38,850 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2022-11-19 08:16:38,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:16:38,878 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:16:38,939 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2022-11-19 08:16:38,947 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2022-11-19 08:16:39,019 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2022-11-19 08:16:39,020 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_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2022-11-19 08:16:39,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:16:39,078 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:16:39,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39 WrapperNode [2022-11-19 08:16:39,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:16:39,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:16:39,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:16:39,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:16:39,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,248 INFO L138 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1036 [2022-11-19 08:16:39,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:16:39,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:16:39,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:16:39,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:16:39,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,337 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:16:39,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:16:39,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:16:39,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:16:39,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (1/1) ... [2022-11-19 08:16:39,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:16:39,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:39,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:16:39,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:16:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:16:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:16:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:16:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:16:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-11-19 08:16:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-11-19 08:16:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:16:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:16:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:16:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:16:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:16:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:16:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-11-19 08:16:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-11-19 08:16:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:16:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-11-19 08:16:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-11-19 08:16:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:16:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:16:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:16:39,767 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:16:39,770 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:16:41,360 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:16:41,784 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:16:41,784 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-19 08:16:41,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:16:41 BoogieIcfgContainer [2022-11-19 08:16:41,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:16:41,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:16:41,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:16:41,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:16:41,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:16:37" (1/3) ... [2022-11-19 08:16:41,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e10dde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:16:41, skipping insertion in model container [2022-11-19 08:16:41,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:16:39" (2/3) ... [2022-11-19 08:16:41,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e10dde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:16:41, skipping insertion in model container [2022-11-19 08:16:41,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:16:41" (3/3) ... [2022-11-19 08:16:41,798 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2022-11-19 08:16:41,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:16:41,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-19 08:16:41,876 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:16:41,882 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;@521930b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:16:41,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 08:16:41,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 124 states have internal predecessors, (206), 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 08:16:41,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 08:16:41,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:41,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:41,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:16:41,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1226502113, now seen corresponding path program 1 times [2022-11-19 08:16:41,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:41,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083622944] [2022-11-19 08:16:41,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:41,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:42,091 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 08:16:42,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:42,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083622944] [2022-11-19 08:16:42,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083622944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:42,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:42,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:16:42,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965194288] [2022-11-19 08:16:42,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:42,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:16:42,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:42,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:16:42,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:16:42,140 INFO L87 Difference]: Start difference. First operand has 142 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 124 states have internal predecessors, (206), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:16:42,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:42,637 INFO L93 Difference]: Finished difference Result 281 states and 474 transitions. [2022-11-19 08:16:42,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:16:42,642 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 08:16:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:42,655 INFO L225 Difference]: With dead ends: 281 [2022-11-19 08:16:42,655 INFO L226 Difference]: Without dead ends: 138 [2022-11-19 08:16:42,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:16:42,671 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:42,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:16:42,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-19 08:16:42,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-11-19 08:16:42,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 117 states have (on average 1.188034188034188) internal successors, (139), 122 states have internal predecessors, (139), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 08:16:42,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 164 transitions. [2022-11-19 08:16:42,750 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 164 transitions. Word has length 7 [2022-11-19 08:16:42,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:42,751 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 164 transitions. [2022-11-19 08:16:42,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:16:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 164 transitions. [2022-11-19 08:16:42,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:16:42,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:42,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:42,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:16:42,754 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:16:42,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:42,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1897806726, now seen corresponding path program 1 times [2022-11-19 08:16:42,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:42,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577445271] [2022-11-19 08:16:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:42,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:43,061 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 08:16:43,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:43,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577445271] [2022-11-19 08:16:43,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577445271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:43,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:43,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:16:43,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458296691] [2022-11-19 08:16:43,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:43,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:16:43,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:43,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:16:43,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:16:43,075 INFO L87 Difference]: Start difference. First operand 138 states and 164 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:16:45,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:45,030 INFO L93 Difference]: Finished difference Result 276 states and 329 transitions. [2022-11-19 08:16:45,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:16:45,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:16:45,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:45,036 INFO L225 Difference]: With dead ends: 276 [2022-11-19 08:16:45,036 INFO L226 Difference]: Without dead ends: 203 [2022-11-19 08:16:45,037 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 08:16:45,038 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 66 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:45,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 385 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 08:16:45,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-19 08:16:45,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 140. [2022-11-19 08:16:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 119 states have (on average 1.184873949579832) internal successors, (141), 124 states have internal predecessors, (141), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 08:16:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2022-11-19 08:16:45,059 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 9 [2022-11-19 08:16:45,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:45,060 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2022-11-19 08:16:45,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:16:45,060 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2022-11-19 08:16:45,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:16:45,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:45,062 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] [2022-11-19 08:16:45,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:16:45,063 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:16:45,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:45,064 INFO L85 PathProgramCache]: Analyzing trace with hash 590989464, now seen corresponding path program 1 times [2022-11-19 08:16:45,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:45,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920591226] [2022-11-19 08:16:45,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:45,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:45,132 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:16:45,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301871183] [2022-11-19 08:16:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:45,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:45,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:45,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:16:45,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:16:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:51,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-19 08:16:51,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:51,194 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 08:16:51,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:16:51,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:51,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920591226] [2022-11-19 08:16:51,195 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:16:51,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301871183] [2022-11-19 08:16:51,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301871183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:51,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:51,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:16:51,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261759737] [2022-11-19 08:16:51,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:51,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:16:51,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:51,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:16:51,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:16:51,199 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:16:56,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:56,158 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2022-11-19 08:16:56,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:16:56,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:16:56,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:56,160 INFO L225 Difference]: With dead ends: 151 [2022-11-19 08:16:56,160 INFO L226 Difference]: Without dead ends: 149 [2022-11-19 08:16:56,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:16:56,161 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 125 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:56,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 631 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 08:16:56,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-19 08:16:56,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-19 08:16:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 125 states have (on average 1.184) internal successors, (148), 131 states have internal predecessors, (148), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 08:16:56,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 175 transitions. [2022-11-19 08:16:56,190 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 175 transitions. Word has length 20 [2022-11-19 08:16:56,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:56,190 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 175 transitions. [2022-11-19 08:16:56,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:16:56,191 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 175 transitions. [2022-11-19 08:16:56,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 08:16:56,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:56,192 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 08:16:56,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:16:56,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:56,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:16:56,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:56,401 INFO L85 PathProgramCache]: Analyzing trace with hash 518864303, now seen corresponding path program 1 times [2022-11-19 08:16:56,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:56,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147376383] [2022-11-19 08:16:56,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:56,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:56,609 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:16:56,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892165096] [2022-11-19 08:16:56,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:56,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:56,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:56,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:16:56,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:16:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:57,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:16:57,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:57,525 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 08:16:57,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:16:57,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:57,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147376383] [2022-11-19 08:16:57,526 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:16:57,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892165096] [2022-11-19 08:16:57,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892165096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:57,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:57,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:16:57,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586109686] [2022-11-19 08:16:57,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:57,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:16:57,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:57,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:16:57,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:57,529 INFO L87 Difference]: Start difference. First operand 149 states and 175 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:16:58,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:58,379 INFO L93 Difference]: Finished difference Result 352 states and 415 transitions. [2022-11-19 08:16:58,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:16:58,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 08:16:58,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:58,384 INFO L225 Difference]: With dead ends: 352 [2022-11-19 08:16:58,384 INFO L226 Difference]: Without dead ends: 206 [2022-11-19 08:16:58,388 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 08:16:58,389 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 52 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:58,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 278 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:16:58,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-19 08:16:58,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 192. [2022-11-19 08:16:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 168 states have (on average 1.1726190476190477) internal successors, (197), 174 states have internal predecessors, (197), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 08:16:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 224 transitions. [2022-11-19 08:16:58,406 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 224 transitions. Word has length 28 [2022-11-19 08:16:58,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:58,406 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 224 transitions. [2022-11-19 08:16:58,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:16:58,407 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 224 transitions. [2022-11-19 08:16:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 08:16:58,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:58,408 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] [2022-11-19 08:16:58,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:58,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:58,619 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:16:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1286675055, now seen corresponding path program 1 times [2022-11-19 08:16:58,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:58,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835662787] [2022-11-19 08:16:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:58,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:58,663 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:16:58,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621890006] [2022-11-19 08:16:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:58,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:58,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:58,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:16:58,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:16:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:59,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:16:59,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:59,257 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 08:16:59,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:16:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:59,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:59,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835662787] [2022-11-19 08:16:59,478 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:16:59,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621890006] [2022-11-19 08:16:59,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621890006] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 08:16:59,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:16:59,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2022-11-19 08:16:59,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590207816] [2022-11-19 08:16:59,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:59,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:16:59,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:59,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:16:59,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:16:59,481 INFO L87 Difference]: Start difference. First operand 192 states and 224 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:17:00,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:17:00,716 INFO L93 Difference]: Finished difference Result 710 states and 839 transitions. [2022-11-19 08:17:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:17:00,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-19 08:17:00,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:17:00,721 INFO L225 Difference]: With dead ends: 710 [2022-11-19 08:17:00,722 INFO L226 Difference]: Without dead ends: 534 [2022-11-19 08:17:00,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:17:00,724 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 744 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:17:00,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 479 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 08:17:00,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-11-19 08:17:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 312. [2022-11-19 08:17:00,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 283 states have (on average 1.176678445229682) internal successors, (333), 289 states have internal predecessors, (333), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-19 08:17:00,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 365 transitions. [2022-11-19 08:17:00,764 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 365 transitions. Word has length 32 [2022-11-19 08:17:00,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:17:00,764 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 365 transitions. [2022-11-19 08:17:00,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:17:00,765 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 365 transitions. [2022-11-19 08:17:00,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 08:17:00,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:00,767 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:17:00,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:17:00,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:17:00,983 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:17:00,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:00,984 INFO L85 PathProgramCache]: Analyzing trace with hash 220787766, now seen corresponding path program 1 times [2022-11-19 08:17:00,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:00,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258021870] [2022-11-19 08:17:00,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:00,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:01,058 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:17:01,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104763615] [2022-11-19 08:17:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:01,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:17:01,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:17:01,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:17:01,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:17:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:01,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:17:01,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:17:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:17:01,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:17:01,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:01,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258021870] [2022-11-19 08:17:01,752 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:17:01,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104763615] [2022-11-19 08:17:01,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104763615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:17:01,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:17:01,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:17:01,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71726605] [2022-11-19 08:17:01,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:17:01,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:17:01,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:17:01,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:17:01,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:17:01,755 INFO L87 Difference]: Start difference. First operand 312 states and 365 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 08:17:04,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:17:04,429 INFO L93 Difference]: Finished difference Result 592 states and 694 transitions. [2022-11-19 08:17:04,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:17:04,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2022-11-19 08:17:04,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:17:04,434 INFO L225 Difference]: With dead ends: 592 [2022-11-19 08:17:04,434 INFO L226 Difference]: Without dead ends: 312 [2022-11-19 08:17:04,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:17:04,436 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 17 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:17:04,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 588 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:17:04,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-19 08:17:04,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-11-19 08:17:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 283 states have (on average 1.176678445229682) internal successors, (333), 289 states have internal predecessors, (333), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 08:17:04,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 364 transitions. [2022-11-19 08:17:04,481 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 364 transitions. Word has length 57 [2022-11-19 08:17:04,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:17:04,481 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 364 transitions. [2022-11-19 08:17:04,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 08:17:04,482 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 364 transitions. [2022-11-19 08:17:04,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-19 08:17:04,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:04,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:17:04,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:17:04,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 08:17:04,708 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:17:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:04,709 INFO L85 PathProgramCache]: Analyzing trace with hash -605656871, now seen corresponding path program 1 times [2022-11-19 08:17:04,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:04,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817384413] [2022-11-19 08:17:04,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:04,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:04,785 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:17:04,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603771445] [2022-11-19 08:17:04,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:04,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:17:04,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:17:04,787 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:17:04,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:17:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:05,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:17:05,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:17:05,490 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 11 treesize of output 7 [2022-11-19 08:17:05,510 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 15 treesize of output 7 [2022-11-19 08:17:05,519 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:17:05,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:17:05,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:05,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817384413] [2022-11-19 08:17:05,520 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:17:05,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603771445] [2022-11-19 08:17:05,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603771445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:17:05,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:17:05,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:17:05,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128772341] [2022-11-19 08:17:05,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:17:05,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:17:05,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:17:05,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:17:05,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:17:05,524 INFO L87 Difference]: Start difference. First operand 312 states and 364 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-19 08:17:07,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:17:09,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:17:09,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:17:09,185 INFO L93 Difference]: Finished difference Result 415 states and 494 transitions. [2022-11-19 08:17:09,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:17:09,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2022-11-19 08:17:09,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:17:09,191 INFO L225 Difference]: With dead ends: 415 [2022-11-19 08:17:09,192 INFO L226 Difference]: Without dead ends: 402 [2022-11-19 08:17:09,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 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 08:17:09,193 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 49 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:17:09,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 383 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-19 08:17:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-19 08:17:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 316. [2022-11-19 08:17:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 287 states have (on average 1.1742160278745644) internal successors, (337), 293 states have internal predecessors, (337), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 08:17:09,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 368 transitions. [2022-11-19 08:17:09,230 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 368 transitions. Word has length 62 [2022-11-19 08:17:09,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:17:09,232 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 368 transitions. [2022-11-19 08:17:09,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-19 08:17:09,234 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 368 transitions. [2022-11-19 08:17:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-19 08:17:09,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:09,237 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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 08:17:09,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:17:09,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 08:17:09,445 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:17:09,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1693270885, now seen corresponding path program 1 times [2022-11-19 08:17:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:09,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2609049] [2022-11-19 08:17:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:09,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:09,555 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:17:09,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1253924485] [2022-11-19 08:17:09,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:09,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:17:09,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:17:09,557 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:17:09,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 08:17:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:10,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 08:17:10,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:17:10,659 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 08:17:10,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:17:10,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:10,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2609049] [2022-11-19 08:17:10,660 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:17:10,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253924485] [2022-11-19 08:17:10,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253924485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:17:10,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:17:10,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:17:10,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131412079] [2022-11-19 08:17:10,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:17:10,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:17:10,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:17:10,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:17:10,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:17:10,663 INFO L87 Difference]: Start difference. First operand 316 states and 368 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 08:17:12,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:17:15,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:17:16,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:17:18,669 WARN L539 Checker$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 08:17:19,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:17:19,099 INFO L93 Difference]: Finished difference Result 604 states and 709 transitions. [2022-11-19 08:17:19,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 08:17:19,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-11-19 08:17:19,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:17:19,105 INFO L225 Difference]: With dead ends: 604 [2022-11-19 08:17:19,105 INFO L226 Difference]: Without dead ends: 319 [2022-11-19 08:17:19,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:17:19,107 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 14 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:17:19,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 892 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 238 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-11-19 08:17:19,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-19 08:17:19,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2022-11-19 08:17:19,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 289 states have (on average 1.1764705882352942) internal successors, (340), 296 states have internal predecessors, (340), 16 states have call successors, (16), 9 states have call predecessors, (16), 10 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-19 08:17:19,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 372 transitions. [2022-11-19 08:17:19,140 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 372 transitions. Word has length 69 [2022-11-19 08:17:19,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:17:19,140 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 372 transitions. [2022-11-19 08:17:19,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-19 08:17:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 372 transitions. [2022-11-19 08:17:19,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 08:17:19,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:17:19,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:17:19,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:17:19,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:17:19,355 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:17:19,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:17:19,355 INFO L85 PathProgramCache]: Analyzing trace with hash -586415689, now seen corresponding path program 1 times [2022-11-19 08:17:19,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:17:19,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021897462] [2022-11-19 08:17:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:19,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:17:19,448 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:17:19,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506708230] [2022-11-19 08:17:19,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:17:19,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:17:19,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:17:19,450 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:17:19,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8424abc-7722-49f5-b5d0-2bb2c1ea3b55/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 08:17:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:17:21,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-19 08:17:21,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:17:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:17:21,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:17:21,591 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 08:17:21,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:17:21,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021897462] [2022-11-19 08:17:21,592 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:17:21,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506708230] [2022-11-19 08:17:21,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506708230] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:17:21,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [28684794] [2022-11-19 08:17:21,615 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-19 08:17:21,615 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:17:21,618 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:17:21,622 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:17:21,623 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:17:21,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:21,742 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:17:21,743 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 08:17:21,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:21,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:21,770 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 08:17:21,781 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 08:17:21,793 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 08:17:21,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:21,805 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 08:17:21,820 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 08:17:21,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:21,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:21,933 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 08:17:21,934 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 08:17:21,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:21,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-19 08:17:21,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:21,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,001 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 08:17:22,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,034 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 58 treesize of output 56 [2022-11-19 08:17:22,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:17:22,056 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 27 treesize of output 31 [2022-11-19 08:17:22,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-19 08:17:22,850 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 08:17:22,883 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 08:17:22,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,921 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 9897015 treesize of output 8253105 [2022-11-19 08:17:22,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:22,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:17:22,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 8253077 treesize of output 5376270 [2022-11-19 08:17:23,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,021 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 9897013 treesize of output 8253101 [2022-11-19 08:17:23,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 8253073 treesize of output 5376282 [2022-11-19 08:17:23,201 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 08:17:23,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,238 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 9897028 treesize of output 8253114 [2022-11-19 08:17:23,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:17:23,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253086 treesize of output 5376285 [2022-11-19 08:17:23,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,358 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 9897028 treesize of output 8253114 [2022-11-19 08:17:23,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:17:23,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8664062 treesize of output 6198237 [2022-11-19 08:17:23,500 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 08:17:23,663 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 08:17:23,668 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 08:17:23,672 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 08:17:23,719 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 08:17:23,729 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 08:17:23,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,839 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 08:17:23,856 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 08:17:23,871 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 08:17:23,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9897009 treesize of output 8253083 [2022-11-19 08:17:23,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:23,963 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 8253064 treesize of output 5787194 [2022-11-19 08:17:23,988 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 5787179 treesize of output 5376201 [2022-11-19 08:17:24,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,021 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 08:17:24,365 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 08:17:24,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9897009 treesize of output 8253083 [2022-11-19 08:17:24,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,463 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 8253064 treesize of output 5787194 [2022-11-19 08:17:24,492 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 5787179 treesize of output 5376201 [2022-11-19 08:17:24,530 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 08:17:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,556 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 08:17:24,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:17:24,578 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 08:17:24,739 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 08:17:24,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:17:24,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:17:24,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:17:24,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:17:24,820 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 08:17:24,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2022-11-19 08:17:24,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2022-11-19 08:17:24,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 108 [2022-11-19 08:17:24,900 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 08:17:24,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:17:24,913 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 14 treesize of output 10 [2022-11-19 08:17:24,937 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 19 treesize of output 7 [2022-11-19 08:17:24,952 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 20 treesize of output 8 [2022-11-19 08:17:24,999 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 19 treesize of output 7 [2022-11-19 08:17:25,014 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 20 treesize of output 8 [2022-11-19 08:17:27,515 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-19 08:17:27,515 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 1318 treesize of output 957 [2022-11-19 08:17:31,328 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 08:17:31,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1293 treesize of output 1170 [2022-11-19 08:17:34,645 INFO L321 Elim1Store]: treesize reduction 1012, result has 38.9 percent of original size [2022-11-19 08:17:34,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 758 treesize of output 1321