./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur --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 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 --- 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-38b53e6 [2022-11-25 22:25:08,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:25:08,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:25:08,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:25:08,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:25:08,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:25:08,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:25:08,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:25:08,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:25:08,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:25:08,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:25:08,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:25:08,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:25:08,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:25:08,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:25:08,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:25:08,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:25:08,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:25:08,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:25:08,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:25:08,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:25:08,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:25:08,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:25:08,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:25:08,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:25:08,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:25:08,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:25:08,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:25:08,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:25:08,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:25:08,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:25:08,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:25:08,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:25:08,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:25:08,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:25:08,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:25:08,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:25:08,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:25:08,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:25:08,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:25:08,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:25:08,444 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:25:08,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:25:08,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:25:08,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:25:08,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:25:08,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:25:08,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:25:08,483 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:25:08,483 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:25:08,483 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:25:08,483 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:25:08,485 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:25:08,485 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:25:08,485 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:25:08,485 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:25:08,485 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:25:08,486 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:25:08,486 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:25:08,486 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:25:08,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:25:08,487 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:25:08,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:25:08,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:25:08,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:25:08,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:25:08,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:25:08,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:25:08,488 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:25:08,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:25:08,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:25:08,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:25:08,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:25:08,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:25:08,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:25:08,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:25:08,490 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:25:08,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:25:08,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:25:08,491 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:25:08,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:25:08,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:25:08,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:25:08,492 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_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 [2022-11-25 22:25:08,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:25:08,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:25:08,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:25:08,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:25:08,851 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:25:08,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2022-11-25 22:25:12,023 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:25:12,407 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:25:12,408 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2022-11-25 22:25:12,426 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/data/1c626739a/0aef970b84834c0baed46d14d7bd98c8/FLAGbc43ff786 [2022-11-25 22:25:12,452 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/data/1c626739a/0aef970b84834c0baed46d14d7bd98c8 [2022-11-25 22:25:12,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:25:12,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:25:12,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:25:12,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:25:12,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:25:12,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:25:12" (1/1) ... [2022-11-25 22:25:12,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c8465d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:12, skipping insertion in model container [2022-11-25 22:25:12,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:25:12" (1/1) ... [2022-11-25 22:25:12,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:25:12,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:25:13,116 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_01f2009f-1686-4e9a-9010-5277f1317fdc/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[33021,33034] [2022-11-25 22:25:13,339 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:25:13,351 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_01f2009f-1686-4e9a-9010-5277f1317fdc/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[49681,49694] [2022-11-25 22:25:13,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:25:13,397 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:25:13,449 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_01f2009f-1686-4e9a-9010-5277f1317fdc/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[33021,33034] [2022-11-25 22:25:13,540 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:25:13,542 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_01f2009f-1686-4e9a-9010-5277f1317fdc/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[49681,49694] [2022-11-25 22:25:13,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:25:13,588 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:25:13,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13 WrapperNode [2022-11-25 22:25:13,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:25:13,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:25:13,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:25:13,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:25:13,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:13,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:13,725 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-25 22:25:13,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:25:13,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:25:13,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:25:13,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:25:13,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:13,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:13,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:13,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:13,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:13,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:13,984 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:13,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:14,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:25:14,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:25:14,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:25:14,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:25:14,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (1/1) ... [2022-11-25 22:25:14,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:25:14,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:14,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:25:14,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:25:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:25:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:25:14,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:25:14,477 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:25:14,487 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:25:16,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:25:17,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:25:17,567 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-25 22:25:17,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:25:17 BoogieIcfgContainer [2022-11-25 22:25:17,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:25:17,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:25:17,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:25:17,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:25:17,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:25:12" (1/3) ... [2022-11-25 22:25:17,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269b1db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:25:17, skipping insertion in model container [2022-11-25 22:25:17,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:13" (2/3) ... [2022-11-25 22:25:17,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269b1db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:25:17, skipping insertion in model container [2022-11-25 22:25:17,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:25:17" (3/3) ... [2022-11-25 22:25:17,579 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-2.i [2022-11-25 22:25:17,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:25:17,598 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:25:17,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:25:17,658 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;@3ab049bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:25:17,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:25:17,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:25:17,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:25:17,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:17,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:25:17,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:17,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:17,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-25 22:25:17,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:17,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818302174] [2022-11-25 22:25:17,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:17,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:17,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:17,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818302174] [2022-11-25 22:25:17,847 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:25:17,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101573272] [2022-11-25 22:25:17,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:17,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:17,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:17,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:17,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:25:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:18,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:25:18,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:18,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:25:18,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101573272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:18,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:18,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:25:18,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779776151] [2022-11-25 22:25:18,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:18,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:25:18,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:18,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:25:18,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:25:18,263 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:19,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:19,092 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-25 22:25:19,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:25:19,098 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-25 22:25:19,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:19,109 INFO L225 Difference]: With dead ends: 329 [2022-11-25 22:25:19,109 INFO L226 Difference]: Without dead ends: 150 [2022-11-25 22:25:19,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:25:19,117 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:19,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 22:25:19,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-25 22:25:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-25 22:25:19,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:25:19,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-25 22:25:19,208 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-25 22:25:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:19,210 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-25 22:25:19,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:19,211 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-25 22:25:19,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 22:25:19,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:19,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:19,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:19,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:25:19,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:19,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:19,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-25 22:25:19,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:19,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769866496] [2022-11-25 22:25:19,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:19,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:19,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:19,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769866496] [2022-11-25 22:25:19,504 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:25:19,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215521777] [2022-11-25 22:25:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:19,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:19,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:19,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:19,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:25:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:19,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:25:19,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:19,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:25:19,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215521777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:19,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:19,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:25:19,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109751823] [2022-11-25 22:25:19,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:19,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:25:19,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:19,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:25:19,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:25:19,822 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:21,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:21,125 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-25 22:25:21,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:25:21,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-25 22:25:21,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:21,134 INFO L225 Difference]: With dead ends: 342 [2022-11-25 22:25:21,134 INFO L226 Difference]: Without dead ends: 290 [2022-11-25 22:25:21,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:25:21,138 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:21,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 22:25:21,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-25 22:25:21,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-25 22:25:21,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:25:21,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-25 22:25:21,167 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-25 22:25:21,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:21,167 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-25 22:25:21,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:21,168 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-25 22:25:21,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 22:25:21,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:21,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:21,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 22:25:21,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:21,379 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:21,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:21,379 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-25 22:25:21,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:21,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381255040] [2022-11-25 22:25:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:21,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:21,729 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:21,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100133014] [2022-11-25 22:25:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:21,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:21,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:21,732 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:21,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:25:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:23,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:25:23,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:23,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:23,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:23,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:23,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381255040] [2022-11-25 22:25:23,700 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:23,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100133014] [2022-11-25 22:25:23,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100133014] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:23,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [233459777] [2022-11-25 22:25:23,735 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-25 22:25:23,735 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:23,740 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:23,748 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:23,748 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:23,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,945 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 22:25:23,946 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 [2022-11-25 22:25:23,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,986 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:25:23,987 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 [2022-11-25 22:25:24,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,068 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 [2022-11-25 22:25:24,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,122 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:25:24,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:25:24,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,145 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 [2022-11-25 22:25:24,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:24,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 22:25:24,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,198 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 [2022-11-25 22:25:24,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:25:24,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:25:24,989 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 [2022-11-25 22:25:25,014 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 [2022-11-25 22:25:25,553 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 [2022-11-25 22:25:25,574 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 [2022-11-25 22:25:25,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:25:25,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:25:25,729 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:34,606 WARN L233 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:25:42,710 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:25:42,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [233459777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:42,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:25:42,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-25 22:25:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182291206] [2022-11-25 22:25:42,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:42,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:25:42,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:42,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:25:42,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-25 22:25:42,718 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:48,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:25:50,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:25:52,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:25:55,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:25:57,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:57,716 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-11-25 22:25:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:25:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-11-25 22:25:57,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:57,718 INFO L225 Difference]: With dead ends: 313 [2022-11-25 22:25:57,718 INFO L226 Difference]: Without dead ends: 164 [2022-11-25 22:25:57,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-25 22:25:57,720 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:57,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-11-25 22:25:57,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-25 22:25:57,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-11-25 22:25:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:25:57,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-25 22:25:57,746 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-25 22:25:57,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:57,747 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-25 22:25:57,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:57,747 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-25 22:25:57,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 22:25:57,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:57,750 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:57,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 22:25:57,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:57,970 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:57,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-25 22:25:57,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:57,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36603406] [2022-11-25 22:25:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:57,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:58,168 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:58,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812079856] [2022-11-25 22:25:58,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:58,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:58,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:58,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:58,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:25:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:59,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:25:59,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:59,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:25:59,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:25:59,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:59,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36603406] [2022-11-25 22:25:59,636 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:59,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812079856] [2022-11-25 22:25:59,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812079856] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:59,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1552383983] [2022-11-25 22:25:59,646 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-25 22:25:59,646 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:59,648 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:59,648 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:59,649 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:59,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:59,867 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:25:59,868 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 [2022-11-25 22:25:59,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:59,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:25:59,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:59,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:59,936 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:25:59,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-25 22:25:59,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:59,957 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 [2022-11-25 22:25:59,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:59,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,010 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:26:00,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:26:00,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,047 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 [2022-11-25 22:26:00,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:00,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 22:26:00,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:26:00,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:26:00,551 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 [2022-11-25 22:26:00,570 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 [2022-11-25 22:26:00,603 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 [2022-11-25 22:26:00,615 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 [2022-11-25 22:26:00,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:26:00,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:26:00,790 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 [2022-11-25 22:26:00,817 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 [2022-11-25 22:26:00,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,893 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:26:00,894 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 [2022-11-25 22:26:00,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:00,977 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:26:00,978 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 [2022-11-25 22:26:01,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:26:01,817 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 [2022-11-25 22:26:01,834 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 [2022-11-25 22:26:01,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:26:01,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:01,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:26:02,905 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 [2022-11-25 22:26:02,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:26:02,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:02,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:26:03,056 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 [2022-11-25 22:26:03,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:26:03,181 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 [2022-11-25 22:26:03,209 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 [2022-11-25 22:26:03,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,285 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:26:03,286 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 [2022-11-25 22:26:03,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:03,387 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:26:03,388 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 [2022-11-25 22:26:03,829 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-25 22:26:03,966 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:26:10,406 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:26:19,917 WARN L233 SmtUtils]: Spent 7.41s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:26:33,719 WARN L233 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:26:50,084 WARN L233 SmtUtils]: Spent 10.21s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:27:03,786 WARN L233 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:27:04,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1552383983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:04,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:27:04,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-25 22:27:04,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965165303] [2022-11-25 22:27:04,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:04,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 22:27:04,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:04,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 22:27:04,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 22:27:04,663 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:27:07,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:09,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:11,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:13,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:15,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:17,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:19,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:21,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:23,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:28,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:27:29,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:29,439 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-25 22:27:29,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:27:29,440 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-25 22:27:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:29,441 INFO L225 Difference]: With dead ends: 315 [2022-11-25 22:27:29,441 INFO L226 Difference]: Without dead ends: 166 [2022-11-25 22:27:29,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 60.7s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-25 22:27:29,443 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:29,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 402 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 24.7s Time] [2022-11-25 22:27:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-25 22:27:29,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-25 22:27:29,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 22:27:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-25 22:27:29,475 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-25 22:27:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:29,475 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-25 22:27:29,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:27:29,476 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-25 22:27:29,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 22:27:29,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:29,478 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:29,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:27:29,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:29,684 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:29,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:29,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-25 22:27:29,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:29,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272849202] [2022-11-25 22:27:29,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:29,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:29,868 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:27:29,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905704072] [2022-11-25 22:27:29,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:29,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:29,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:27:29,870 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:27:29,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f2009f-1686-4e9a-9010-5277f1317fdc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:27:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:31,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:27:31,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:27:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:27:31,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:27:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:27:31,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:31,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272849202] [2022-11-25 22:27:31,478 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:27:31,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905704072] [2022-11-25 22:27:31,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905704072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:27:31,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1143823971] [2022-11-25 22:27:31,482 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-25 22:27:31,482 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:27:31,483 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:27:31,483 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:27:31,483 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:27:31,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,722 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:27:31,727 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 [2022-11-25 22:27:31,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:27:31,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,768 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:31,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,789 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:27:31,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-25 22:27:31,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,849 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:27:31,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-25 22:27:31,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,879 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 [2022-11-25 22:27:31,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,902 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 [2022-11-25 22:27:31,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:31,953 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:27:31,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:27:32,317 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 [2022-11-25 22:27:32,334 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 [2022-11-25 22:27:32,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:27:32,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:27:32,494 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 [2022-11-25 22:27:32,508 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 [2022-11-25 22:27:32,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:27:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:27:32,688 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 [2022-11-25 22:27:32,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,775 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:27:32,775 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 [2022-11-25 22:27:32,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,899 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:27:32,900 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 [2022-11-25 22:27:32,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:32,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:27:33,041 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 [2022-11-25 22:27:33,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:27:33,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 22:27:33,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:27:33,303 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:27:33,304 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 [2022-11-25 22:27:33,341 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 22:27:33,341 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 [2022-11-25 22:27:33,380 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:27:33,380 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 [2022-11-25 22:27:33,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:27:33,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:27:33,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:27:33,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:27:33,616 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 [2022-11-25 22:27:33,650 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 [2022-11-25 22:27:33,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:33,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:27:33,880 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 [2022-11-25 22:27:33,901 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 [2022-11-25 22:27:35,707 INFO L217 Elim1Store]: Index analysis took 1466 ms [2022-11-25 22:27:42,024 WARN L233 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:27:42,025 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-25 22:27:42,025 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 10752723 treesize of output 10752742 [2022-11-25 22:27:43,902 INFO L217 Elim1Store]: Index analysis took 1684 ms [2022-11-25 22:27:44,846 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-25 22:27:44,847 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 10752718 treesize of output 10752722 [2022-11-25 22:31:49,307 WARN L233 SmtUtils]: Spent 4.07m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:31:49,308 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-25 22:31:49,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-25 22:31:49,970 INFO L217 Elim1Store]: Index analysis took 288 ms [2022-11-25 22:33:54,720 WARN L233 SmtUtils]: Spent 2.08m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:33:54,721 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 22:33:54,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-11-25 22:34:00,706 INFO L217 Elim1Store]: Index analysis took 4084 ms