./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.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_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/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_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/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_d0e8db32-826c-48f7-9e18-9b2439189098/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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- 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 23:46:59,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:46:59,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:46:59,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:46:59,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:46:59,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:46:59,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:46:59,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:46:59,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:46:59,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:46:59,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:46:59,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:46:59,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:46:59,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:46:59,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:46:59,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:46:59,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:46:59,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:46:59,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:46:59,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:46:59,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:46:59,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:46:59,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:46:59,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:46:59,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:46:59,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:46:59,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:46:59,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:46:59,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:46:59,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:46:59,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:46:59,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:46:59,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:46:59,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:46:59,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:46:59,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:46:59,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:46:59,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:46:59,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:46:59,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:46:59,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:46:59,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:46:59,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:46:59,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:46:59,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:46:59,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:46:59,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:46:59,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:46:59,481 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:46:59,481 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:46:59,482 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:46:59,482 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:46:59,482 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:46:59,482 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:46:59,482 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:46:59,482 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:46:59,483 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:46:59,483 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:46:59,483 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:46:59,483 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:46:59,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:46:59,484 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:46:59,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:46:59,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:46:59,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:46:59,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:46:59,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:46:59,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:46:59,485 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:46:59,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:46:59,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:46:59,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:46:59,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:46:59,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:46:59,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:46:59,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:46:59,487 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:46:59,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:46:59,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:46:59,487 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:46:59,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:46:59,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:46:59,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:46:59,488 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_d0e8db32-826c-48f7-9e18-9b2439189098/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2022-11-25 23:46:59,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:46:59,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:46:59,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:46:59,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:46:59,797 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:46:59,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2022-11-25 23:47:02,791 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:47:03,102 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:47:03,102 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2022-11-25 23:47:03,127 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/data/5d09ec900/32799c52fdb04004a478544d5393c8e6/FLAG78a5f38fa [2022-11-25 23:47:03,144 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/data/5d09ec900/32799c52fdb04004a478544d5393c8e6 [2022-11-25 23:47:03,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:47:03,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:47:03,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:03,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:47:03,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:47:03,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:03,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c63ba4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03, skipping insertion in model container [2022-11-25 23:47:03,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:03,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:47:03,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:47:03,635 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_d0e8db32-826c-48f7-9e18-9b2439189098/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2022-11-25 23:47:03,721 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:47:03,732 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_d0e8db32-826c-48f7-9e18-9b2439189098/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2022-11-25 23:47:03,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:03,748 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:47:03,804 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_d0e8db32-826c-48f7-9e18-9b2439189098/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2022-11-25 23:47:03,911 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:47:03,919 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_d0e8db32-826c-48f7-9e18-9b2439189098/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2022-11-25 23:47:03,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:03,964 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:47:03,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03 WrapperNode [2022-11-25 23:47:03,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:03,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:03,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:47:03,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:47:03,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,064 INFO L138 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1022 [2022-11-25 23:47:04,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:04,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:47:04,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:47:04,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:47:04,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,170 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:47:04,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:47:04,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:47:04,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:47:04,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (1/1) ... [2022-11-25 23:47:04,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:47:04,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:04,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:47:04,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:47:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:47:04,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 23:47:04,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 23:47:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:47:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:47:04,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:47:04,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:47:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:47:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:47:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:47:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 23:47:04,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:47:04,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:47:04,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:47:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:47:04,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:47:04,493 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:47:04,506 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:47:06,261 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:47:06,760 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:47:06,761 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-25 23:47:06,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:06 BoogieIcfgContainer [2022-11-25 23:47:06,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:47:06,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:47:06,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:47:06,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:47:06,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:47:03" (1/3) ... [2022-11-25 23:47:06,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a7b310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:06, skipping insertion in model container [2022-11-25 23:47:06,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:03" (2/3) ... [2022-11-25 23:47:06,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a7b310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:06, skipping insertion in model container [2022-11-25 23:47:06,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:06" (3/3) ... [2022-11-25 23:47:06,772 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2022-11-25 23:47:06,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:47:06,791 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:47:06,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:47:06,848 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;@5d20460d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:47:06,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:47:06,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 23:47:06,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:47:06,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:06,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:06,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:06,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:06,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1898435451, now seen corresponding path program 1 times [2022-11-25 23:47:06,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:06,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078148282] [2022-11-25 23:47:06,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:06,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:07,033 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 23:47:07,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:07,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078148282] [2022-11-25 23:47:07,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078148282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:07,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:07,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:07,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553455585] [2022-11-25 23:47:07,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:07,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:47:07,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:07,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:47:07,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:47:07,072 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:47:07,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:07,571 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2022-11-25 23:47:07,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:47:07,577 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-25 23:47:07,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:07,586 INFO L225 Difference]: With dead ends: 245 [2022-11-25 23:47:07,586 INFO L226 Difference]: Without dead ends: 122 [2022-11-25 23:47:07,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:47:07,593 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:07,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:47:07,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-25 23:47:07,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-11-25 23:47:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 23:47:07,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-11-25 23:47:07,640 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2022-11-25 23:47:07,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:07,641 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-11-25 23:47:07,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:47:07,642 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-11-25 23:47:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:47:07,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:07,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:07,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:47:07,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:07,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:07,644 INFO L85 PathProgramCache]: Analyzing trace with hash -94655351, now seen corresponding path program 1 times [2022-11-25 23:47:07,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:07,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897747970] [2022-11-25 23:47:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:07,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:07,919 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 23:47:07,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:07,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897747970] [2022-11-25 23:47:07,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897747970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:07,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:07,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:47:07,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301485203] [2022-11-25 23:47:07,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:07,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:07,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:07,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:07,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:07,931 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:10,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:47:10,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:10,263 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2022-11-25 23:47:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:10,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 23:47:10,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:10,270 INFO L225 Difference]: With dead ends: 258 [2022-11-25 23:47:10,270 INFO L226 Difference]: Without dead ends: 189 [2022-11-25 23:47:10,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:10,272 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:10,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 355 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 23:47:10,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-25 23:47:10,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2022-11-25 23:47:10,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 23:47:10,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2022-11-25 23:47:10,290 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2022-11-25 23:47:10,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:10,291 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2022-11-25 23:47:10,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:10,291 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2022-11-25 23:47:10,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-25 23:47:10,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:10,293 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:10,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:47:10,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:10,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:10,294 INFO L85 PathProgramCache]: Analyzing trace with hash 339208180, now seen corresponding path program 1 times [2022-11-25 23:47:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:10,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937341424] [2022-11-25 23:47:10,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:10,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:10,457 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:10,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704353295] [2022-11-25 23:47:10,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:10,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:10,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:10,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:10,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:47:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:11,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:47:11,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:11,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:11,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:11,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937341424] [2022-11-25 23:47:11,351 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:11,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704353295] [2022-11-25 23:47:11,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704353295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:11,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:11,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:11,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224550312] [2022-11-25 23:47:11,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:11,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:11,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:11,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:11,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:11,354 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:12,503 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2022-11-25 23:47:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:12,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-25 23:47:12,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:12,510 INFO L225 Difference]: With dead ends: 304 [2022-11-25 23:47:12,510 INFO L226 Difference]: Without dead ends: 183 [2022-11-25 23:47:12,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 23:47:12,512 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:12,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 278 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 23:47:12,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-25 23:47:12,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2022-11-25 23:47:12,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 23:47:12,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2022-11-25 23:47:12,528 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2022-11-25 23:47:12,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:12,529 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2022-11-25 23:47:12,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:12,529 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2022-11-25 23:47:12,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-25 23:47:12,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:12,531 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:12,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:12,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:12,741 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:12,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:12,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1571641394, now seen corresponding path program 1 times [2022-11-25 23:47:12,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:12,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208320762] [2022-11-25 23:47:12,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:12,821 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:12,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949857832] [2022-11-25 23:47:12,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:12,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:12,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:12,828 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:12,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:47:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:13,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:47:13,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:13,495 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 23:47:13,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-25 23:47:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:47:13,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:13,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:13,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208320762] [2022-11-25 23:47:13,532 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:13,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949857832] [2022-11-25 23:47:13,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949857832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:13,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:13,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:47:13,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471547510] [2022-11-25 23:47:13,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:13,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:13,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:13,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:13,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:13,538 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:47:15,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:15,149 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2022-11-25 23:47:15,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:15,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-11-25 23:47:15,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:15,154 INFO L225 Difference]: With dead ends: 231 [2022-11-25 23:47:15,154 INFO L226 Difference]: Without dead ends: 212 [2022-11-25 23:47:15,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:15,156 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:15,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 354 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 23:47:15,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-25 23:47:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2022-11-25 23:47:15,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 23:47:15,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2022-11-25 23:47:15,171 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2022-11-25 23:47:15,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:15,171 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2022-11-25 23:47:15,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:47:15,171 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2022-11-25 23:47:15,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 23:47:15,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:15,173 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:15,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:15,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:15,381 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:15,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:15,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2144578966, now seen corresponding path program 1 times [2022-11-25 23:47:15,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:15,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132563964] [2022-11-25 23:47:15,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:15,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:15,455 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:15,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45616797] [2022-11-25 23:47:15,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:15,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:15,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:15,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:15,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:47:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:16,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:47:16,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:47:16,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:16,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:16,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132563964] [2022-11-25 23:47:16,174 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:16,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45616797] [2022-11-25 23:47:16,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45616797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:16,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:16,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:47:16,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947717888] [2022-11-25 23:47:16,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:16,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:16,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:16,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:16,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:16,177 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:47:17,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:17,278 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2022-11-25 23:47:17,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:47:17,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-25 23:47:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:17,281 INFO L225 Difference]: With dead ends: 395 [2022-11-25 23:47:17,281 INFO L226 Difference]: Without dead ends: 242 [2022-11-25 23:47:17,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:17,283 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 260 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:17,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 290 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 23:47:17,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-25 23:47:17,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2022-11-25 23:47:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 23:47:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2022-11-25 23:47:17,310 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2022-11-25 23:47:17,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:17,311 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2022-11-25 23:47:17,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:47:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2022-11-25 23:47:17,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-25 23:47:17,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:17,313 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:17,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:17,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:17,522 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:17,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:17,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2121750984, now seen corresponding path program 1 times [2022-11-25 23:47:17,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:17,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037286926] [2022-11-25 23:47:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:17,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:17,616 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:17,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834865988] [2022-11-25 23:47:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:17,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:17,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:17,619 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:17,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:47:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:29,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:47:29,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 23:47:29,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:29,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:29,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037286926] [2022-11-25 23:47:29,700 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:29,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834865988] [2022-11-25 23:47:29,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834865988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:29,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:29,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:47:29,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324152406] [2022-11-25 23:47:29,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:29,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:29,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:29,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:29,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:29,702 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:47:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:30,729 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2022-11-25 23:47:30,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:30,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2022-11-25 23:47:30,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:30,735 INFO L225 Difference]: With dead ends: 411 [2022-11-25 23:47:30,735 INFO L226 Difference]: Without dead ends: 216 [2022-11-25 23:47:30,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:30,737 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:30,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 392 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 23:47:30,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-25 23:47:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-25 23:47:30,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-25 23:47:30,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2022-11-25 23:47:30,756 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2022-11-25 23:47:30,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:30,756 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2022-11-25 23:47:30,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:47:30,757 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2022-11-25 23:47:30,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 23:47:30,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:30,759 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:30,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:30,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 23:47:30,974 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:47:30,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:30,974 INFO L85 PathProgramCache]: Analyzing trace with hash -869473738, now seen corresponding path program 1 times [2022-11-25 23:47:30,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:30,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962622393] [2022-11-25 23:47:30,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:30,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:31,036 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:31,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838429676] [2022-11-25 23:47:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:31,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:31,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:31,038 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:31,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8db32-826c-48f7-9e18-9b2439189098/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:48:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:08,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:48:08,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 23:48:08,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:48:08,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:08,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962622393] [2022-11-25 23:48:08,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:08,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838429676] [2022-11-25 23:48:08,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838429676] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:08,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [902666575] [2022-11-25 23:48:08,191 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-25 23:48:08,191 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:08,196 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:08,203 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:08,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:08,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 23:48:08,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 23:48:08,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,360 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:48:08,360 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 23:48:08,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 23:48:08,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,402 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:48:08,403 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 23:48:08,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,468 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:48:08,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-25 23:48:08,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,527 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 23:48:08,528 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 23:48:08,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,559 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 23:48:08,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,611 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:08,612 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 23:48:08,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,640 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 23:48:09,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-25 23:48:09,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-11-25 23:48:09,269 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 23:48:09,290 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 23:48:09,329 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 23:48:09,344 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 23:48:09,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 23:48:09,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 23:48:09,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-25 23:48:09,640 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 23:48:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,714 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 23:48:09,715 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 23:48:09,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,815 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 23:48:09,815 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 23:48:09,850 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 23:48:10,055 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 23:48:10,059 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 23:48:10,064 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 23:48:10,114 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:48:10,115 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 23:48:10,145 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 23:48:10,145 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 23:48:10,174 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:48:10,175 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 23:48:10,216 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 23:48:10,221 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 23:48:10,227 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 23:48:10,288 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 23:48:10,310 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 23:48:10,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-25 23:48:10,547 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 23:48:10,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:10,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-25 23:48:10,607 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 23:48:11,514 INFO L217 Elim1Store]: Index analysis took 594 ms [2022-11-25 23:48:16,206 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-25 23:48:16,207 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 9519777 treesize of output 9519796 [2022-11-25 23:48:17,333 INFO L217 Elim1Store]: Index analysis took 924 ms [2022-11-25 23:48:17,931 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-25 23:48:17,932 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 9519772 treesize of output 9519776 [2022-11-25 23:48:27,588 WARN L233 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:48:27,588 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-25 23:48:27,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-25 23:48:27,940 INFO L217 Elim1Store]: Index analysis took 148 ms [2022-11-25 23:48:52,582 WARN L233 SmtUtils]: Spent 24.64s 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 23:48:52,583 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 23:48:52,583 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 2005 treesize of output 1834 [2022-11-25 23:48:54,483 INFO L217 Elim1Store]: Index analysis took 1291 ms [2022-11-25 23:49:22,136 WARN L233 SmtUtils]: Spent 26.68s on a formula simplification. DAG size of input: 258 DAG size of output: 156 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:49:22,137 INFO L321 Elim1Store]: treesize reduction 13218, result has 27.3 percent of original size [2022-11-25 23:49:22,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 3622 treesize of output 7921 [2022-11-25 23:49:23,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:23,719 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-11-25 23:49:23,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:23,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:23,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:23,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-11-25 23:49:25,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:25,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-25 23:49:25,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:25,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-25 23:49:25,956 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-11-25 23:49:28,739 INFO L321 Elim1Store]: treesize reduction 550, result has 14.1 percent of original size [2022-11-25 23:49:28,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 16 new quantified variables, introduced 18 case distinctions, treesize of input 51016 treesize of output 53256 [2022-11-25 23:49:36,463 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:37,144 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:49:37,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40854 [2022-11-25 23:49:38,090 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:45,472 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 45 DAG size of output: 37 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:49:45,472 INFO L321 Elim1Store]: treesize reduction 185, result has 49.9 percent of original size [2022-11-25 23:49:45,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66514 treesize of output 65984 [2022-11-25 23:49:46,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43142 treesize of output 43102 [2022-11-25 23:49:48,553 INFO L321 Elim1Store]: treesize reduction 17, result has 48.5 percent of original size [2022-11-25 23:49:48,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40828 [2022-11-25 23:49:49,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-25 23:49:51,984 INFO L321 Elim1Store]: treesize reduction 45, result has 49.4 percent of original size [2022-11-25 23:49:51,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56608 treesize of output 56496 [2022-11-25 23:50:22,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:22,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:22,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:22,881 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:23,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,592 INFO L217 Elim1Store]: Index analysis took 6178 ms [2022-11-25 23:50:25,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:25,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 545 treesize of output 4453 [2022-11-25 23:50:25,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-25 23:50:27,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:30,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,715 INFO L217 Elim1Store]: Index analysis took 6276 ms [2022-11-25 23:50:32,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:32,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-11-25 23:50:33,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:34,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:36,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,639 INFO L217 Elim1Store]: Index analysis took 4615 ms [2022-11-25 23:50:37,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:37,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2257 [2022-11-25 23:50:37,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:38,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:38,072 INFO L217 Elim1Store]: Index analysis took 104 ms [2022-11-25 23:50:38,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-11-25 23:50:39,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:39,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:39,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:41,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:41,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:41,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:41,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,015 INFO L217 Elim1Store]: Index analysis took 3528 ms [2022-11-25 23:50:42,016 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,016 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:42,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2269 [2022-11-25 23:50:42,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:42,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:42,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2022-11-25 23:50:42,641 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:50:44,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,633 INFO L217 Elim1Store]: Index analysis took 1913 ms [2022-11-25 23:50:44,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:44,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 40009 treesize of output 43909 [2022-11-25 23:50:49,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:54,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,637 INFO L217 Elim1Store]: Index analysis took 6827 ms [2022-11-25 23:50:55,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:55,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2215 [2022-11-25 23:50:56,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:56,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:56,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 194 [2022-11-25 23:50:56,250 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:51:01,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:01,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:01,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:01,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,596 INFO L217 Elim1Store]: Index analysis took 6171 ms [2022-11-25 23:51:02,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:02,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 507 treesize of output 3942 [2022-11-25 23:51:02,915 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:51:04,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:07,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:08,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,106 INFO L217 Elim1Store]: Index analysis took 5921 ms [2022-11-25 23:51:09,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:09,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-11-25 23:51:09,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:09,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:09,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 54 [2022-11-25 23:51:10,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:10,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,172 INFO L217 Elim1Store]: Index analysis took 1465 ms [2022-11-25 23:51:11,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:11,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 34295 treesize of output 38205 [2022-11-25 23:51:24,252 INFO L217 Elim1Store]: Index analysis took 8602 ms [2022-11-25 23:51:25,600 INFO L321 Elim1Store]: treesize reduction 538, result has 3.8 percent of original size [2022-11-25 23:51:25,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 14 case distinctions, treesize of input 403 treesize of output 2354 [2022-11-25 23:51:26,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:26,028 INFO L217 Elim1Store]: Index analysis took 252 ms [2022-11-25 23:51:26,459 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:26,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 79 [2022-11-25 23:51:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:26,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:26,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-11-25 23:51:31,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:33,844 INFO L217 Elim1Store]: Index analysis took 6860 ms [2022-11-25 23:51:34,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 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 316 treesize of output 2350 [2022-11-25 23:51:35,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:36,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:36,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:43,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,372 INFO L217 Elim1Store]: Index analysis took 9172 ms [2022-11-25 23:51:44,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,378 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:44,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1409 treesize of output 3388 [2022-11-25 23:51:44,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:44,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:44,850 INFO L217 Elim1Store]: Index analysis took 240 ms [2022-11-25 23:51:45,340 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:45,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 1093 treesize of output 919 [2022-11-25 23:51:45,769 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:51:46,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:48,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:51,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:58,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,808 INFO L217 Elim1Store]: Index analysis took 14348 ms [2022-11-25 23:52:00,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:00,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 573 treesize of output 2471 [2022-11-25 23:52:01,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:01,694 INFO L217 Elim1Store]: Index analysis took 339 ms [2022-11-25 23:52:02,433 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:52:02,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 257 treesize of output 221 [2022-11-25 23:52:02,827 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:52:04,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:04,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:04,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:06,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:06,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:06,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:06,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,002 INFO L217 Elim1Store]: Index analysis took 3946 ms [2022-11-25 23:52:07,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:07,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 2287 [2022-11-25 23:52:07,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:52:07,582 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:53:21,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:24,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:24,406 INFO L217 Elim1Store]: Index analysis took 2503 ms [2022-11-25 23:53:24,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 15 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1905 treesize of output 16050 [2022-11-25 23:53:26,057 INFO L217 Elim1Store]: Index analysis took 510 ms [2022-11-25 23:55:22,940 WARN L233 SmtUtils]: Spent 1.95m on a formula simplification. DAG size of input: 222 DAG size of output: 42 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:55:22,943 INFO L321 Elim1Store]: treesize reduction 1365, result has 5.7 percent of original size [2022-11-25 23:55:22,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 38 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 33 new quantified variables, introduced 68 case distinctions, treesize of input 5645 treesize of output 94048