./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/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 ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:39:03,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:39:03,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:39:03,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:39:03,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:39:03,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:39:03,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:39:03,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:39:03,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:39:03,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:39:03,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:39:03,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:39:03,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:39:03,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:39:03,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:39:03,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:39:03,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:39:03,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:39:03,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:39:03,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:39:03,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:39:03,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:39:03,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:39:03,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:39:03,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:39:03,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:39:03,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:39:03,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:39:03,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:39:03,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:39:03,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:39:03,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:39:03,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:39:03,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:39:03,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:39:03,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:39:03,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:39:03,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:39:03,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:39:03,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:39:03,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:39:03,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:39:03,317 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:39:03,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:39:03,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:39:03,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:39:03,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:39:03,320 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:39:03,320 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:39:03,320 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:39:03,321 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:39:03,321 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:39:03,322 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:39:03,323 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:39:03,323 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:39:03,323 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:39:03,323 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:39:03,324 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:39:03,324 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:39:03,324 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:39:03,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:39:03,325 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:39:03,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:39:03,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:39:03,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:39:03,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:39:03,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:39:03,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:39:03,327 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:39:03,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:39:03,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:39:03,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:39:03,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:39:03,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:39:03,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:39:03,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:39:03,329 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:39:03,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:39:03,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:39:03,330 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:39:03,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:39:03,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:39:03,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:39:03,331 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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2022-11-25 22:39:03,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:39:03,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:39:03,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:39:03,732 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:39:03,732 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:39:03,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2022-11-25 22:39:06,998 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:39:07,389 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:39:07,390 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2022-11-25 22:39:07,408 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/data/14c897d12/7edd3e98b1174fd18df3a42a82a4aab7/FLAG1f3d60f99 [2022-11-25 22:39:07,425 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/data/14c897d12/7edd3e98b1174fd18df3a42a82a4aab7 [2022-11-25 22:39:07,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:39:07,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:39:07,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:39:07,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:39:07,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:39:07,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5707dc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:07, skipping insertion in model container [2022-11-25 22:39:07,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:39:07" (1/1) ... [2022-11-25 22:39:07,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:39:07,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:39:08,251 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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[44118,44131] [2022-11-25 22:39:08,269 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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[44660,44673] [2022-11-25 22:39:08,272 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:39:08,397 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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[56247,56260] [2022-11-25 22:39:08,399 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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[56368,56381] [2022-11-25 22:39:08,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:39:08,442 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:39:08,521 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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[44118,44131] [2022-11-25 22:39:08,534 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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[44660,44673] [2022-11-25 22:39:08,537 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:39:08,624 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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[56247,56260] [2022-11-25 22:39:08,628 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_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[56368,56381] [2022-11-25 22:39:08,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:39:08,771 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:39:08,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08 WrapperNode [2022-11-25 22:39:08,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:39:08,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:39:08,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:39:08,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:39:08,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:08,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:08,937 INFO L138 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1036 [2022-11-25 22:39:08,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:39:08,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:39:08,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:39:08,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:39:08,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:08,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:08,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:08,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:09,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:09,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:09,042 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:09,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:09,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:39:09,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:39:09,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:39:09,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:39:09,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (1/1) ... [2022-11-25 22:39:09,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:39:09,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:09,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:39:09,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:39:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:39:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:39:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:39:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:39:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-11-25 22:39:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-11-25 22:39:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:39:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:39:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:39:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:39:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:39:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:39:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-11-25 22:39:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-11-25 22:39:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:39:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-11-25 22:39:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-11-25 22:39:09,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:39:09,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:39:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:39:09,486 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:39:09,489 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:39:11,142 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:39:11,642 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:39:11,642 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-25 22:39:11,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:39:11 BoogieIcfgContainer [2022-11-25 22:39:11,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:39:11,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:39:11,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:39:11,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:39:11,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:39:07" (1/3) ... [2022-11-25 22:39:11,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2183a57b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:39:11, skipping insertion in model container [2022-11-25 22:39:11,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:39:08" (2/3) ... [2022-11-25 22:39:11,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2183a57b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:39:11, skipping insertion in model container [2022-11-25 22:39:11,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:39:11" (3/3) ... [2022-11-25 22:39:11,660 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-1.i [2022-11-25 22:39:11,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:39:11,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 22:39:11,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:39:11,757 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;@7667abab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:39:11,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 22:39:11,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 124 states have internal predecessors, (206), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-25 22:39:11,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:39:11,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:11,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:11,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:39:11,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:11,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1226502113, now seen corresponding path program 1 times [2022-11-25 22:39:11,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:11,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419510485] [2022-11-25 22:39:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:11,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:12,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:12,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419510485] [2022-11-25 22:39:12,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419510485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:12,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:12,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:39:12,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312575545] [2022-11-25 22:39:12,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:12,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:39:12,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:12,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:39:12,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:39:12,120 INFO L87 Difference]: Start difference. First operand has 142 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 124 states have internal predecessors, (206), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:12,662 INFO L93 Difference]: Finished difference Result 281 states and 474 transitions. [2022-11-25 22:39:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:39:12,667 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 22:39:12,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:12,677 INFO L225 Difference]: With dead ends: 281 [2022-11-25 22:39:12,678 INFO L226 Difference]: Without dead ends: 138 [2022-11-25 22:39:12,682 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 22:39:12,686 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:12,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 22:39:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-25 22:39:12,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-11-25 22:39:12,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 117 states have (on average 1.188034188034188) internal successors, (139), 122 states have internal predecessors, (139), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 22:39:12,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 164 transitions. [2022-11-25 22:39:12,741 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 164 transitions. Word has length 7 [2022-11-25 22:39:12,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:12,742 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 164 transitions. [2022-11-25 22:39:12,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:12,742 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 164 transitions. [2022-11-25 22:39:12,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:39:12,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:12,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:12,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:39:12,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:39:12,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:12,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1897806726, now seen corresponding path program 1 times [2022-11-25 22:39:12,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:12,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104870749] [2022-11-25 22:39:12,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:12,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:12,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:12,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104870749] [2022-11-25 22:39:12,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104870749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:12,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:12,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:39:12,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388971994] [2022-11-25 22:39:12,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:12,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:39:12,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:12,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:39:12,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:39:12,962 INFO L87 Difference]: Start difference. First operand 138 states and 164 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:15,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:15,088 INFO L93 Difference]: Finished difference Result 276 states and 329 transitions. [2022-11-25 22:39:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:39:15,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:39:15,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:15,094 INFO L225 Difference]: With dead ends: 276 [2022-11-25 22:39:15,094 INFO L226 Difference]: Without dead ends: 203 [2022-11-25 22:39:15,095 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 22:39:15,097 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 66 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:15,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 385 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 22:39:15,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-25 22:39:15,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 140. [2022-11-25 22:39:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 119 states have (on average 1.184873949579832) internal successors, (141), 124 states have internal predecessors, (141), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 22:39:15,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2022-11-25 22:39:15,118 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 9 [2022-11-25 22:39:15,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:15,118 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2022-11-25 22:39:15,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:15,119 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2022-11-25 22:39:15,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 22:39:15,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:15,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:15,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:39:15,121 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:39:15,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:15,122 INFO L85 PathProgramCache]: Analyzing trace with hash 590989464, now seen corresponding path program 1 times [2022-11-25 22:39:15,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:15,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388693897] [2022-11-25 22:39:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:15,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:15,165 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:39:15,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938682071] [2022-11-25 22:39:15,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:15,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:15,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:15,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:15,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:39:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:20,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 22:39:20,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:20,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:20,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:20,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388693897] [2022-11-25 22:39:20,802 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:39:20,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938682071] [2022-11-25 22:39:20,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938682071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:20,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:20,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:39:20,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698328732] [2022-11-25 22:39:20,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:20,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:39:20,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:20,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:39:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:39:20,806 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:25,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:39:26,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:26,628 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2022-11-25 22:39:26,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:39:26,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 22:39:26,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:26,631 INFO L225 Difference]: With dead ends: 151 [2022-11-25 22:39:26,631 INFO L226 Difference]: Without dead ends: 149 [2022-11-25 22:39:26,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:39:26,633 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 125 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:26,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 631 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-25 22:39:26,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-25 22:39:26,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-25 22:39:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 125 states have (on average 1.184) internal successors, (148), 131 states have internal predecessors, (148), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:39:26,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 175 transitions. [2022-11-25 22:39:26,650 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 175 transitions. Word has length 20 [2022-11-25 22:39:26,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:26,651 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 175 transitions. [2022-11-25 22:39:26,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 175 transitions. [2022-11-25 22:39:26,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 22:39:26,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:26,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:26,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:26,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:26,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:39:26,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:26,865 INFO L85 PathProgramCache]: Analyzing trace with hash 518864303, now seen corresponding path program 1 times [2022-11-25 22:39:26,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:26,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639173031] [2022-11-25 22:39:26,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:26,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:27,044 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:39:27,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26688529] [2022-11-25 22:39:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:27,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:27,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:27,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:27,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:39:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:28,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:39:28,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:28,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:28,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:28,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:28,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639173031] [2022-11-25 22:39:28,079 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:39:28,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26688529] [2022-11-25 22:39:28,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26688529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:28,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:28,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:39:28,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517292177] [2022-11-25 22:39:28,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:28,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:39:28,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:28,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:39:28,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:28,082 INFO L87 Difference]: Start difference. First operand 149 states and 175 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:28,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:28,961 INFO L93 Difference]: Finished difference Result 352 states and 415 transitions. [2022-11-25 22:39:28,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:39:28,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-25 22:39:28,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:28,968 INFO L225 Difference]: With dead ends: 352 [2022-11-25 22:39:28,968 INFO L226 Difference]: Without dead ends: 206 [2022-11-25 22:39:28,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:28,970 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 52 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:28,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 278 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 22:39:28,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-25 22:39:28,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 192. [2022-11-25 22:39:28,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 168 states have (on average 1.1726190476190477) internal successors, (197), 174 states have internal predecessors, (197), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:39:28,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 224 transitions. [2022-11-25 22:39:28,996 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 224 transitions. Word has length 28 [2022-11-25 22:39:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:28,996 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 224 transitions. [2022-11-25 22:39:28,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:39:28,996 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 224 transitions. [2022-11-25 22:39:28,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 22:39:28,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:28,998 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:29,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:29,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:29,209 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:39:29,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:29,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1286675055, now seen corresponding path program 1 times [2022-11-25 22:39:29,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:29,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031904053] [2022-11-25 22:39:29,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:29,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:29,282 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:39:29,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310349683] [2022-11-25 22:39:29,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:29,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:29,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:29,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:29,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:39:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:29,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:39:29,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:29,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:39:29,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:30,079 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 22:39:30,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:30,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031904053] [2022-11-25 22:39:30,080 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:39:30,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310349683] [2022-11-25 22:39:30,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310349683] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:39:30,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:39:30,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2022-11-25 22:39:30,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622808555] [2022-11-25 22:39:30,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:30,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:39:30,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:30,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:39:30,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:39:30,084 INFO L87 Difference]: Start difference. First operand 192 states and 224 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:39:31,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:31,877 INFO L93 Difference]: Finished difference Result 710 states and 839 transitions. [2022-11-25 22:39:31,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:39:31,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-25 22:39:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:31,883 INFO L225 Difference]: With dead ends: 710 [2022-11-25 22:39:31,883 INFO L226 Difference]: Without dead ends: 534 [2022-11-25 22:39:31,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:39:31,886 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 720 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:31,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 479 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 22:39:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-11-25 22:39:31,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 312. [2022-11-25 22:39:31,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 283 states have (on average 1.176678445229682) internal successors, (333), 289 states have internal predecessors, (333), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-25 22:39:31,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 365 transitions. [2022-11-25 22:39:31,934 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 365 transitions. Word has length 32 [2022-11-25 22:39:31,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:31,935 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 365 transitions. [2022-11-25 22:39:31,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:39:31,936 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 365 transitions. [2022-11-25 22:39:31,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 22:39:31,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:31,938 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:31,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:32,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:32,153 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:39:32,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:32,154 INFO L85 PathProgramCache]: Analyzing trace with hash 220787766, now seen corresponding path program 1 times [2022-11-25 22:39:32,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:32,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959075474] [2022-11-25 22:39:32,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:32,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:32,252 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:39:32,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934996249] [2022-11-25 22:39:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:32,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:32,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:32,256 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:32,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:39:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:32,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:39:32,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:32,969 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:39:32,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:32,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:32,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959075474] [2022-11-25 22:39:32,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:39:32,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934996249] [2022-11-25 22:39:32,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934996249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:32,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:32,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:39:32,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926073406] [2022-11-25 22:39:32,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:32,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:39:32,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:32,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:39:32,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:39:32,974 INFO L87 Difference]: Start difference. First operand 312 states and 365 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:39:35,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:39:37,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:39:37,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:37,911 INFO L93 Difference]: Finished difference Result 592 states and 694 transitions. [2022-11-25 22:39:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:39:37,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2022-11-25 22:39:37,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:37,918 INFO L225 Difference]: With dead ends: 592 [2022-11-25 22:39:37,918 INFO L226 Difference]: Without dead ends: 312 [2022-11-25 22:39:37,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:39:37,923 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 15 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:37,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 588 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 22:39:37,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-25 22:39:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-11-25 22:39:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 283 states have (on average 1.176678445229682) internal successors, (333), 289 states have internal predecessors, (333), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 22:39:37,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 364 transitions. [2022-11-25 22:39:37,950 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 364 transitions. Word has length 57 [2022-11-25 22:39:37,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:37,951 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 364 transitions. [2022-11-25 22:39:37,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:39:37,951 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 364 transitions. [2022-11-25 22:39:37,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 22:39:37,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:37,953 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:37,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:38,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 22:39:38,162 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:39:38,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash -605656871, now seen corresponding path program 1 times [2022-11-25 22:39:38,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:38,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449527523] [2022-11-25 22:39:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:38,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:38,256 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:39:38,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282546198] [2022-11-25 22:39:38,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:38,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:38,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:38,258 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:38,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:39:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:38,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:39:38,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:38,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:39:39,005 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 22:39:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:39:39,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:39,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:39,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449527523] [2022-11-25 22:39:39,018 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:39:39,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282546198] [2022-11-25 22:39:39,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282546198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:39,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:39,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:39:39,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020901712] [2022-11-25 22:39:39,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:39,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:39:39,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:39,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:39:39,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:39:39,023 INFO L87 Difference]: Start difference. First operand 312 states and 364 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-25 22:39:41,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:41,681 INFO L93 Difference]: Finished difference Result 415 states and 494 transitions. [2022-11-25 22:39:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:39:41,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2022-11-25 22:39:41,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:41,688 INFO L225 Difference]: With dead ends: 415 [2022-11-25 22:39:41,688 INFO L226 Difference]: Without dead ends: 402 [2022-11-25 22:39:41,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:39:41,690 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 49 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:41,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 383 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 22:39:41,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-25 22:39:41,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 316. [2022-11-25 22:39:41,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 287 states have (on average 1.1742160278745644) internal successors, (337), 293 states have internal predecessors, (337), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 22:39:41,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 368 transitions. [2022-11-25 22:39:41,719 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 368 transitions. Word has length 62 [2022-11-25 22:39:41,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:41,720 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 368 transitions. [2022-11-25 22:39:41,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-25 22:39:41,720 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 368 transitions. [2022-11-25 22:39:41,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 22:39:41,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:41,722 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:41,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-25 22:39:41,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:41,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:39:41,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:41,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1693270885, now seen corresponding path program 1 times [2022-11-25 22:39:41,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:41,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977616034] [2022-11-25 22:39:41,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:41,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:42,003 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:39:42,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552543242] [2022-11-25 22:39:42,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:42,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:42,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:42,005 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:42,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:39:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:43,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 22:39:43,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 22:39:43,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:39:43,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:43,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977616034] [2022-11-25 22:39:43,280 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:39:43,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552543242] [2022-11-25 22:39:43,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552543242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:43,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:43,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 22:39:43,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891951244] [2022-11-25 22:39:43,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:43,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:39:43,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:43,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:39:43,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:39:43,283 INFO L87 Difference]: Start difference. First operand 316 states and 368 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 22:39:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:46,898 INFO L93 Difference]: Finished difference Result 604 states and 709 transitions. [2022-11-25 22:39:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:39:46,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-11-25 22:39:46,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:46,912 INFO L225 Difference]: With dead ends: 604 [2022-11-25 22:39:46,912 INFO L226 Difference]: Without dead ends: 319 [2022-11-25 22:39:46,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:39:46,914 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 14 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:46,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 892 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 22:39:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-25 22:39:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2022-11-25 22:39:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 289 states have (on average 1.1764705882352942) internal successors, (340), 296 states have internal predecessors, (340), 16 states have call successors, (16), 9 states have call predecessors, (16), 10 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-25 22:39:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 372 transitions. [2022-11-25 22:39:46,944 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 372 transitions. Word has length 69 [2022-11-25 22:39:46,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:46,944 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 372 transitions. [2022-11-25 22:39:46,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 22:39:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 372 transitions. [2022-11-25 22:39:46,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 22:39:46,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:46,947 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:46,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:47,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:47,160 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:39:47,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:47,160 INFO L85 PathProgramCache]: Analyzing trace with hash -586415689, now seen corresponding path program 1 times [2022-11-25 22:39:47,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:47,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103448209] [2022-11-25 22:39:47,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:47,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:47,248 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:39:47,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090849918] [2022-11-25 22:39:47,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:47,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:47,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:47,254 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:47,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1ba7527-da25-4e6c-87ab-d17eafb2e4d5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 22:39:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:48,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 22:39:48,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:39:49,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:49,315 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 22:39:49,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:49,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103448209] [2022-11-25 22:39:49,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:39:49,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090849918] [2022-11-25 22:39:49,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090849918] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:49,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1372697749] [2022-11-25 22:39:49,343 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-25 22:39:49,343 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:39:49,348 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:39:49,355 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:39:49,355 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:39:49,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,550 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:39:49,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:39:49,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2022-11-25 22:39:49,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 22:39:49,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:39:49,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-25 22:39:49,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 22:39:49,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,749 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-25 22:39:49,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-11-25 22:39:49,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:39:49,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 40 [2022-11-25 22:39:49,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 56 [2022-11-25 22:39:49,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:39:49,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-11-25 22:39:49,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:49,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:39:50,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:39:50,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:39:50,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897015 treesize of output 8253105 [2022-11-25 22:39:50,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:39:50,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 8253077 treesize of output 5376270 [2022-11-25 22:39:50,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897013 treesize of output 8253101 [2022-11-25 22:39:50,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:50,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 8253073 treesize of output 5376282 [2022-11-25 22:39:51,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:39:51,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897028 treesize of output 8253114 [2022-11-25 22:39:51,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:39:51,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253086 treesize of output 5376285 [2022-11-25 22:39:51,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897028 treesize of output 8253114 [2022-11-25 22:39:51,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:39:51,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8664062 treesize of output 6198237 [2022-11-25 22:39:51,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:39:51,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 22:39:51,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:39:51,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 22:39:51,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 22:39:51,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 22:39:51,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-25 22:39:51,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-25 22:39:51,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-25 22:39:51,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 8253083 [2022-11-25 22:39:51,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253064 treesize of output 5787194 [2022-11-25 22:39:51,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5787179 treesize of output 5376201 [2022-11-25 22:39:51,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:51,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-11-25 22:39:52,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-25 22:39:52,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 8253083 [2022-11-25 22:39:52,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253064 treesize of output 5787194 [2022-11-25 22:39:52,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5787179 treesize of output 5376201 [2022-11-25 22:39:52,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-25 22:39:52,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-25 22:39:52,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:52,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-11-25 22:39:52,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 22:39:52,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 22:39:52,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 22:39:52,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:39:52,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:39:52,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:39:52,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2022-11-25 22:39:52,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2022-11-25 22:39:52,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 108 [2022-11-25 22:39:52,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:39:52,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:39:52,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:39:52,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-25 22:39:52,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-25 22:39:52,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-25 22:39:52,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-25 22:39:54,831 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-25 22:39:54,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1318 treesize of output 957 [2022-11-25 22:39:58,391 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 22:39:58,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1293 treesize of output 1170 [2022-11-25 22:40:02,395 INFO L321 Elim1Store]: treesize reduction 1012, result has 38.9 percent of original size [2022-11-25 22:40:02,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 758 treesize of output 1321 [2022-11-25 22:46:17,297 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 1046 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)