./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh --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 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:49:06,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:49:06,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:49:06,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:49:06,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:49:06,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:49:06,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:49:06,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:49:06,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:49:06,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:49:06,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:49:06,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:49:06,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:49:06,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:49:06,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:49:06,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:49:06,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:49:06,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:49:06,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:49:06,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:49:06,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:49:06,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:49:06,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:49:06,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:49:06,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:49:06,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:49:06,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:49:06,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:49:06,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:49:06,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:49:06,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:49:06,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:49:06,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:49:06,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:49:06,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:49:06,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:49:06,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:49:06,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:49:06,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:49:06,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:49:06,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:49:06,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 05:49:06,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:49:06,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:49:06,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:49:06,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:49:06,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:49:06,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:49:06,441 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:49:06,441 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:49:06,441 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:49:06,441 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:49:06,441 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:49:06,441 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:49:06,441 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:49:06,442 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:49:06,442 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:49:06,442 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:49:06,442 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:49:06,442 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:49:06,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:49:06,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:49:06,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:49:06,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:49:06,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:49:06,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:49:06,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:49:06,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:49:06,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:49:06,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:49:06,444 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:49:06,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:49:06,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:49:06,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:49:06,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:49:06,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:49:06,445 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:49:06,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:49:06,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:49:06,445 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:49:06,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:49:06,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:49:06,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:49:06,445 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_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 [2022-12-14 05:49:06,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:49:06,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:49:06,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:49:06,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:49:06,657 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:49:06,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2022-12-14 05:49:09,220 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:49:09,434 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:49:09,435 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2022-12-14 05:49:09,448 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/data/89bce9f8d/1267c752de8a47b388a8039637ecace3/FLAG08ced7ec7 [2022-12-14 05:49:09,461 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/data/89bce9f8d/1267c752de8a47b388a8039637ecace3 [2022-12-14 05:49:09,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:49:09,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:49:09,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:49:09,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:49:09,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:49:09,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:49:09" (1/1) ... [2022-12-14 05:49:09,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b49a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:09, skipping insertion in model container [2022-12-14 05:49:09,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:49:09" (1/1) ... [2022-12-14 05:49:09,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:49:09,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:49:09,844 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[33021,33034] [2022-12-14 05:49:09,919 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 05:49:09,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44124,44137] [2022-12-14 05:49:09,929 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44245,44258] [2022-12-14 05:49:09,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:49:09,953 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:49:09,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[33021,33034] [2022-12-14 05:49:10,022 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 05:49:10,029 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44124,44137] [2022-12-14 05:49:10,030 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44245,44258] [2022-12-14 05:49:10,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:49:10,067 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:49:10,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10 WrapperNode [2022-12-14 05:49:10,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:49:10,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:49:10,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:49:10,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:49:10,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,156 INFO L138 Inliner]: procedures = 176, calls = 328, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-12-14 05:49:10,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:49:10,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:49:10,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:49:10,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:49:10,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,236 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:49:10,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:49:10,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:49:10,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:49:10,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (1/1) ... [2022-12-14 05:49:10,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:49:10,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:49:10,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:49:10,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:49:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:49:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:49:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 05:49:10,323 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 05:49:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:49:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:49:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:49:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:49:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 05:49:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:49:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:49:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:49:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:49:10,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:49:10,495 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:49:10,497 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:49:11,546 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:49:11,889 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:49:11,889 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-12-14 05:49:11,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:49:11 BoogieIcfgContainer [2022-12-14 05:49:11,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:49:11,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:49:11,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:49:11,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:49:11,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:49:09" (1/3) ... [2022-12-14 05:49:11,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f0aef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:49:11, skipping insertion in model container [2022-12-14 05:49:11,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:49:10" (2/3) ... [2022-12-14 05:49:11,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f0aef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:49:11, skipping insertion in model container [2022-12-14 05:49:11,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:49:11" (3/3) ... [2022-12-14 05:49:11,899 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-2.i [2022-12-14 05:49:11,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:49:11,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 05:49:11,950 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:49:11,955 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;@4f5d7e7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:49:11,956 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 05:49:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:49:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 05:49:11,965 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:11,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:49:11,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:11,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:11,970 INFO L85 PathProgramCache]: Analyzing trace with hash -62122227, now seen corresponding path program 1 times [2022-12-14 05:49:11,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:11,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593622904] [2022-12-14 05:49:11,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:11,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:49:12,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:12,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593622904] [2022-12-14 05:49:12,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593622904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:12,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:12,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:49:12,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707716058] [2022-12-14 05:49:12,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:12,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:49:12,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:12,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:49:12,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:49:12,188 INFO L87 Difference]: Start difference. First operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2022-12-14 05:49:12,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:12,577 INFO L93 Difference]: Finished difference Result 243 states and 427 transitions. [2022-12-14 05:49:12,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:49:12,581 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 [2022-12-14 05:49:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:12,589 INFO L225 Difference]: With dead ends: 243 [2022-12-14 05:49:12,590 INFO L226 Difference]: Without dead ends: 107 [2022-12-14 05:49:12,593 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 [2022-12-14 05:49:12,596 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:12,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 05:49:12,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-14 05:49:12,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-12-14 05:49:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:49:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2022-12-14 05:49:12,639 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2022-12-14 05:49:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:12,640 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2022-12-14 05:49:12,640 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) [2022-12-14 05:49:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2022-12-14 05:49:12,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:49:12,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:12,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:49:12,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:49:12,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:12,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:12,642 INFO L85 PathProgramCache]: Analyzing trace with hash -514891776, now seen corresponding path program 1 times [2022-12-14 05:49:12,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:12,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335691076] [2022-12-14 05:49:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:12,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:49:12,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:12,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335691076] [2022-12-14 05:49:12,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335691076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:12,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:12,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:49:12,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724653084] [2022-12-14 05:49:12,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:12,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:49:12,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:12,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:49:12,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:49:12,748 INFO L87 Difference]: Start difference. First operand 107 states and 125 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) [2022-12-14 05:49:14,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:14,589 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2022-12-14 05:49:14,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:49:14,591 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 [2022-12-14 05:49:14,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:14,592 INFO L225 Difference]: With dead ends: 219 [2022-12-14 05:49:14,592 INFO L226 Difference]: Without dead ends: 165 [2022-12-14 05:49:14,593 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 [2022-12-14 05:49:14,593 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:14,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 281 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 05:49:14,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-12-14 05:49:14,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2022-12-14 05:49:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:49:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2022-12-14 05:49:14,601 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2022-12-14 05:49:14,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:14,601 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2022-12-14 05:49:14,601 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) [2022-12-14 05:49:14,601 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2022-12-14 05:49:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 05:49:14,602 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:14,602 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:49:14,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:49:14,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:14,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:14,603 INFO L85 PathProgramCache]: Analyzing trace with hash 176334190, now seen corresponding path program 1 times [2022-12-14 05:49:14,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:14,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860447468] [2022-12-14 05:49:14,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:14,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:14,712 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 05:49:14,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642461624] [2022-12-14 05:49:14,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:14,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:14,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:49:14,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:49:14,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:49:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:15,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:49:15,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:49:15,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:49:15,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:49:15,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:15,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860447468] [2022-12-14 05:49:15,316 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 05:49:15,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642461624] [2022-12-14 05:49:15,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642461624] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:15,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:15,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:49:15,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575572299] [2022-12-14 05:49:15,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:15,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:49:15,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:15,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:49:15,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:49:15,319 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:49:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:17,068 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2022-12-14 05:49:17,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:49:17,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-12-14 05:49:17,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:17,075 INFO L225 Difference]: With dead ends: 265 [2022-12-14 05:49:17,075 INFO L226 Difference]: Without dead ends: 159 [2022-12-14 05:49:17,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:49:17,076 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:17,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 206 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 05:49:17,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-12-14 05:49:17,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2022-12-14 05:49:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 147 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:49:17,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2022-12-14 05:49:17,084 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2022-12-14 05:49:17,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:17,085 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2022-12-14 05:49:17,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:49:17,085 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2022-12-14 05:49:17,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 05:49:17,086 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:17,086 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:49:17,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:49:17,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:17,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:17,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:17,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2052583092, now seen corresponding path program 1 times [2022-12-14 05:49:17,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:17,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242530452] [2022-12-14 05:49:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:17,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:17,372 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 05:49:17,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977033794] [2022-12-14 05:49:17,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:17,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:17,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:49:17,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:49:17,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:49:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:17,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:49:17,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:49:17,738 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 [2022-12-14 05:49:17,750 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 [2022-12-14 05:49:17,757 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 05:49:17,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:49:17,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:17,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242530452] [2022-12-14 05:49:17,758 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 05:49:17,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977033794] [2022-12-14 05:49:17,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977033794] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:17,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:17,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:49:17,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626801972] [2022-12-14 05:49:17,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:17,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:49:17,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:17,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:49:17,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:49:17,761 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:49:19,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:19,472 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2022-12-14 05:49:19,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:49:19,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-12-14 05:49:19,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:19,477 INFO L225 Difference]: With dead ends: 201 [2022-12-14 05:49:19,477 INFO L226 Difference]: Without dead ends: 197 [2022-12-14 05:49:19,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:49:19,478 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 47 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:19,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 283 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 05:49:19,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-12-14 05:49:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2022-12-14 05:49:19,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.162162162162162) internal successors, (172), 149 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:49:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2022-12-14 05:49:19,488 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2022-12-14 05:49:19,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:19,489 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2022-12-14 05:49:19,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:49:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2022-12-14 05:49:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 05:49:19,490 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:19,490 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:49:19,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:49:19,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:19,692 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:19,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash -788535011, now seen corresponding path program 1 times [2022-12-14 05:49:19,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:19,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476253371] [2022-12-14 05:49:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:19,764 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 05:49:19,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806682121] [2022-12-14 05:49:19,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:19,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:19,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:49:19,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:49:19,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:49:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:20,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:49:20,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:49:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 05:49:20,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:49:20,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:20,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476253371] [2022-12-14 05:49:20,199 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 05:49:20,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806682121] [2022-12-14 05:49:20,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806682121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:20,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:20,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:49:20,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166866534] [2022-12-14 05:49:20,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:20,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:49:20,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:20,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:49:20,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:49:20,202 INFO L87 Difference]: Start difference. First operand 154 states and 178 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:49:21,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:21,212 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2022-12-14 05:49:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:49:21,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-12-14 05:49:21,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:21,218 INFO L225 Difference]: With dead ends: 344 [2022-12-14 05:49:21,218 INFO L226 Difference]: Without dead ends: 206 [2022-12-14 05:49:21,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:49:21,219 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 229 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:21,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 169 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 05:49:21,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-14 05:49:21,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2022-12-14 05:49:21,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.1709844559585492) internal successors, (226), 194 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:49:21,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2022-12-14 05:49:21,229 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2022-12-14 05:49:21,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:21,230 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2022-12-14 05:49:21,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:49:21,230 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2022-12-14 05:49:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 05:49:21,231 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:21,231 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2022-12-14 05:49:21,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:49:21,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:21,432 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:21,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:21,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1893225867, now seen corresponding path program 1 times [2022-12-14 05:49:21,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:21,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223700931] [2022-12-14 05:49:21,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:21,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:21,533 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 05:49:21,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [794809878] [2022-12-14 05:49:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:21,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:21,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:49:21,535 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:49:21,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:49:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:41,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:49:41,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:49:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:49:41,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:49:41,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:41,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223700931] [2022-12-14 05:49:41,697 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 05:49:41,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794809878] [2022-12-14 05:49:41,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794809878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:41,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:41,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:49:41,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464384597] [2022-12-14 05:49:41,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:41,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:49:41,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:41,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:49:41,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:49:41,699 INFO L87 Difference]: Start difference. First operand 199 states and 232 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 05:49:44,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 05:49:44,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:44,444 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2022-12-14 05:49:44,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:49:44,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2022-12-14 05:49:44,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:44,452 INFO L225 Difference]: With dead ends: 381 [2022-12-14 05:49:44,453 INFO L226 Difference]: Without dead ends: 201 [2022-12-14 05:49:44,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:49:44,454 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 1 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:44,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 320 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 05:49:44,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-12-14 05:49:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-12-14 05:49:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 194 states have (on average 1.175257731958763) internal successors, (228), 196 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 05:49:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2022-12-14 05:49:44,463 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2022-12-14 05:49:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:44,463 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2022-12-14 05:49:44,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 05:49:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2022-12-14 05:49:44,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 05:49:44,465 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:44,465 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:49:44,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 05:49:44,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:44,667 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:44,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:44,668 INFO L85 PathProgramCache]: Analyzing trace with hash -533701723, now seen corresponding path program 1 times [2022-12-14 05:49:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:44,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705491175] [2022-12-14 05:49:44,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:44,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:44,763 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 05:49:44,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1529565696] [2022-12-14 05:49:44,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:44,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:49:44,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:49:44,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:49:44,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8e6c935-dfb9-4d69-bcd0-846f96000cd0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:50:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:50:38,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 05:50:38,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:50:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 05:50:39,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:50:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:50:39,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:50:39,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705491175] [2022-12-14 05:50:39,101 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 05:50:39,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529565696] [2022-12-14 05:50:39,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529565696] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:50:39,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1922968947] [2022-12-14 05:50:39,118 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 05:50:39,118 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:50:39,121 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:50:39,126 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:50:39,127 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:50:39,206 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 15 treesize of output 1 [2022-12-14 05:50:39,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 05:50:39,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,234 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:50:39,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 05:50:39,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,257 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:50:39,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 05:50:39,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-12-14 05:50:39,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,308 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 05:50:39,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-12-14 05:50:39,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-12-14 05:50:39,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,374 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 05:50:39,374 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 [2022-12-14 05:50:39,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2022-12-14 05:50:39,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 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 [2022-12-14 05:50:39,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 05:50:39,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-12-14 05:50:39,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-12-14 05:50:39,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:39,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-12-14 05:50:39,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-12-14 05:50:40,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-12-14 05:50:40,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 05:50:40,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 05:50:40,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 05:50:40,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,220 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 05:50:40,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 05:50:40,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,284 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 05:50:40,285 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 49 treesize of output 85 [2022-12-14 05:50:40,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 05:50:40,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 05:50:40,471 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 [2022-12-14 05:50:40,475 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 [2022-12-14 05:50:40,479 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 [2022-12-14 05:50:40,522 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 05:50:40,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-12-14 05:50:40,546 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 05:50:40,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-12-14 05:50:40,567 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 05:50:40,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-12-14 05:50:40,597 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 [2022-12-14 05:50:40,601 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 [2022-12-14 05:50:40,606 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 [2022-12-14 05:50:40,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 05:50:40,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 05:50:40,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 05:50:40,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 05:50:40,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 05:50:40,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:50:40,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 05:50:42,334 INFO L217 Elim1Store]: Index analysis took 1141 ms [2022-12-14 05:50:47,333 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 05:50:47,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519771 treesize of output 9519790 [2022-12-14 05:50:48,366 INFO L217 Elim1Store]: Index analysis took 892 ms [2022-12-14 05:50:48,888 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 05:50:48,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519766 treesize of output 9519770