./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/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_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/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_3922ab31-70a9-40a0-80d9-4a45c209bfa2/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 9a08b66a27502bd32ab373960778294a6ce88841aa5560ae4bca712e152c143f --- 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 22:24:49,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:24:49,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:24:49,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:24:49,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:24:49,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:24:49,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:24:49,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:24:49,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:24:49,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:24:49,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:24:49,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:24:49,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:24:49,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:24:49,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:24:49,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:24:49,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:24:49,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:24:49,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:24:49,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:24:49,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:24:49,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:24:49,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:24:49,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:24:50,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:24:50,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:24:50,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:24:50,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:24:50,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:24:50,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:24:50,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:24:50,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:24:50,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:24:50,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:24:50,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:24:50,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:24:50,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:24:50,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:24:50,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:24:50,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:24:50,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:24:50,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:24:50,074 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:24:50,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:24:50,075 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:24:50,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:24:50,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:24:50,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:24:50,077 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:24:50,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:24:50,078 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:24:50,078 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:24:50,079 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:24:50,079 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:24:50,080 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:24:50,080 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:24:50,080 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:24:50,080 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:24:50,081 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:24:50,081 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:24:50,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:24:50,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:24:50,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:24:50,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:24:50,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:24:50,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:24:50,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:24:50,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:24:50,084 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:24:50,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:24:50,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:24:50,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:24:50,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:24:50,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:24:50,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:24:50,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:24:50,086 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:24:50,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:24:50,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:24:50,087 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:24:50,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:24:50,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:24:50,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:24:50,088 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_3922ab31-70a9-40a0-80d9-4a45c209bfa2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a08b66a27502bd32ab373960778294a6ce88841aa5560ae4bca712e152c143f [2022-11-25 22:24:50,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:24:50,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:24:50,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:24:50,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:24:50,428 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:24:50,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2022-11-25 22:24:53,854 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:24:54,286 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:24:54,287 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2022-11-25 22:24:54,307 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/data/4187e1190/b68b0a7cd2394febb60b503dce56de69/FLAG29bfcc9ae [2022-11-25 22:24:54,347 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/data/4187e1190/b68b0a7cd2394febb60b503dce56de69 [2022-11-25 22:24:54,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:24:54,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:24:54,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:24:54,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:24:54,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:24:54,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:24:54" (1/1) ... [2022-11-25 22:24:54,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b087a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:54, skipping insertion in model container [2022-11-25 22:24:54,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:24:54" (1/1) ... [2022-11-25 22:24:54,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:24:54,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:24:55,129 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_3922ab31-70a9-40a0-80d9-4a45c209bfa2/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2022-11-25 22:24:55,312 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:24:55,316 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_3922ab31-70a9-40a0-80d9-4a45c209bfa2/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2022-11-25 22:24:55,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:24:55,351 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:24:55,383 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_3922ab31-70a9-40a0-80d9-4a45c209bfa2/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2022-11-25 22:24:55,482 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:24:55,485 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_3922ab31-70a9-40a0-80d9-4a45c209bfa2/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2022-11-25 22:24:55,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:24:55,542 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:24:55,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55 WrapperNode [2022-11-25 22:24:55,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:24:55,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:24:55,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:24:55,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:24:55,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,708 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-25 22:24:55,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:24:55,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:24:55,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:24:55,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:24:55,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,921 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:24:55,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:24:55,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:24:55,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:24:55,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (1/1) ... [2022-11-25 22:24:55,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:24:55,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:55,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:24:56,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:24:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:24:56,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:24:56,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:24:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:24:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:24:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:24:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:24:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:24:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:24:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:24:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:24:56,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:24:56,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:24:56,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:24:56,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:24:56,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:24:56,479 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:24:56,481 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:24:59,096 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:24:59,813 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:24:59,813 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-25 22:24:59,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:24:59 BoogieIcfgContainer [2022-11-25 22:24:59,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:24:59,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:24:59,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:24:59,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:24:59,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:24:54" (1/3) ... [2022-11-25 22:24:59,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7bdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:24:59, skipping insertion in model container [2022-11-25 22:24:59,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:55" (2/3) ... [2022-11-25 22:24:59,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7bdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:24:59, skipping insertion in model container [2022-11-25 22:24:59,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:24:59" (3/3) ... [2022-11-25 22:24:59,834 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-2.i [2022-11-25 22:24:59,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:24:59,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:24:59,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:24:59,926 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;@7bad1f2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:24:59,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:24:59,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:24:59,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:24:59,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:59,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:24:59,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:24:59,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:59,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-25 22:24:59,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:59,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924689239] [2022-11-25 22:24:59,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:59,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:00,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:00,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924689239] [2022-11-25 22:25:00,140 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:25:00,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682258478] [2022-11-25 22:25:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:00,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:00,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:00,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:00,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:25:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:00,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:25:00,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:00,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:00,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:25:00,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682258478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:00,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:00,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:25:00,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206457266] [2022-11-25 22:25:00,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:00,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:25:00,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:00,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:25:00,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:25:00,539 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:01,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:01,547 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-25 22:25:01,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:25:01,553 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 22:25:01,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:01,564 INFO L225 Difference]: With dead ends: 329 [2022-11-25 22:25:01,564 INFO L226 Difference]: Without dead ends: 150 [2022-11-25 22:25:01,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:25:01,574 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:01,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 22:25:01,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-25 22:25:01,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-25 22:25:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:25:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-25 22:25:01,629 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-25 22:25:01,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:01,630 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-25 22:25:01,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:01,631 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-25 22:25:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 22:25:01,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:01,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:01,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:01,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:25:01,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:01,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-25 22:25:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:01,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797896293] [2022-11-25 22:25:01,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:01,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:01,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:01,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797896293] [2022-11-25 22:25:01,927 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:25:01,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031079689] [2022-11-25 22:25:01,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:01,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:01,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:01,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:01,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:25:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:02,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:25:02,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:02,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:25:02,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031079689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:02,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:02,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:25:02,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299208190] [2022-11-25 22:25:02,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:02,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:25:02,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:02,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:25:02,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:25:02,328 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:03,721 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-25 22:25:03,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:25:03,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-25 22:25:03,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:03,728 INFO L225 Difference]: With dead ends: 342 [2022-11-25 22:25:03,728 INFO L226 Difference]: Without dead ends: 290 [2022-11-25 22:25:03,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:25:03,731 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:03,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 22:25:03,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-25 22:25:03,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-25 22:25:03,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:25:03,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-25 22:25:03,756 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-25 22:25:03,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:03,756 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-25 22:25:03,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-25 22:25:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 22:25:03,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:03,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:03,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 22:25:03,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:03,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:03,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:03,967 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-25 22:25:03,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:03,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605885616] [2022-11-25 22:25:03,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:03,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:04,387 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:04,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739210259] [2022-11-25 22:25:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:04,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:04,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:04,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:04,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:25:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:05,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:25:05,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:06,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:25:06,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:06,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605885616] [2022-11-25 22:25:06,129 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:06,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739210259] [2022-11-25 22:25:06,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739210259] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:06,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [965996652] [2022-11-25 22:25:06,154 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-25 22:25:06,155 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:06,159 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:06,165 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:06,166 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:06,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,428 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 22:25:06,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-25 22:25:06,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,466 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:25:06,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 22:25:06,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:25:06,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,573 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:25:06,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:25:06,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-25 22:25:06,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:06,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 22:25:06,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:25:07,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:25:07,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:25:07,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:07,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:08,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:08,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:08,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:25:08,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:08,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:25:08,232 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:17,659 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:25:26,029 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:25:26,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [965996652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:26,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:25:26,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-25 22:25:26,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045545943] [2022-11-25 22:25:26,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:26,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:25:26,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:26,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:25:26,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-25 22:25:26,041 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:31,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:25:33,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:25:35,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:25:39,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:39,515 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-11-25 22:25:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:25:39,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-25 22:25:39,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:39,518 INFO L225 Difference]: With dead ends: 313 [2022-11-25 22:25:39,518 INFO L226 Difference]: Without dead ends: 164 [2022-11-25 22:25:39,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-25 22:25:39,520 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:39,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-11-25 22:25:39,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-25 22:25:39,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-11-25 22:25:39,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 22:25:39,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-25 22:25:39,549 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-25 22:25:39,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:39,549 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-25 22:25:39,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:39,550 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-25 22:25:39,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 22:25:39,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:39,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:39,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:39,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:39,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:39,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:39,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-25 22:25:39,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:39,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185148167] [2022-11-25 22:25:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:39,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:40,006 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:40,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275598261] [2022-11-25 22:25:40,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:40,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:40,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:40,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:40,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:25:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:41,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:25:41,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:41,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:25:41,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:25:41,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:41,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185148167] [2022-11-25 22:25:41,695 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:41,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275598261] [2022-11-25 22:25:41,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275598261] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:41,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [209043475] [2022-11-25 22:25:41,700 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-25 22:25:41,701 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:41,701 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:41,702 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:41,702 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:41,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:41,818 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:25:41,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 22:25:41,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:41,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:25:41,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:41,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:41,890 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:25:41,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-25 22:25:41,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:41,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:25:41,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:41,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:41,999 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:25:41,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:25:42,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:25:42,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,036 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:42,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 22:25:42,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:25:42,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-25 22:25:42,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:42,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:42,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:25:42,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:25:42,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:25:42,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:25:42,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:25:42,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:25:42,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:42,979 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:25:42,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-25 22:25:43,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,075 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:25:43,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-25 22:25:43,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:43,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:25:43,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:44,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:25:44,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:25:44,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:25:44,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:25:44,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:25:44,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:25:44,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:25:44,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:25:44,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:25:44,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:25:44,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,657 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:25:44,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-25 22:25:44,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:44,771 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:25:44,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-25 22:25:45,274 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-25 22:25:45,411 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:54,304 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:26:06,550 WARN L233 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:26:17,419 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:26:31,343 WARN L233 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:26:44,286 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:26:45,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [209043475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:45,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:26:45,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-25 22:26:45,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256304843] [2022-11-25 22:26:45,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:45,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 22:26:45,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:45,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 22:26:45,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-25 22:26:45,413 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:26:51,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:26:54,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:26:56,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:26:58,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:00,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:02,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:04,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:06,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:08,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:10,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:27:15,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 22:27:16,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:16,550 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-25 22:27:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:27:16,551 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-25 22:27:16,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:16,552 INFO L225 Difference]: With dead ends: 315 [2022-11-25 22:27:16,553 INFO L226 Difference]: Without dead ends: 166 [2022-11-25 22:27:16,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 63.3s TimeCoverageRelationStatistics Valid=100, Invalid=196, Unknown=10, NotChecked=0, Total=306 [2022-11-25 22:27:16,555 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:16,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 402 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 27.7s Time] [2022-11-25 22:27:16,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-25 22:27:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-25 22:27:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 22:27:16,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-25 22:27:16,593 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-25 22:27:16,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:16,593 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-25 22:27:16,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:27:16,594 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-25 22:27:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 22:27:16,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:16,597 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:16,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:27:16,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:16,803 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:16,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:16,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-25 22:27:16,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:16,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48269087] [2022-11-25 22:27:16,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:16,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:16,999 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:27:17,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316348251] [2022-11-25 22:27:17,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:17,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:17,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:27:17,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:27:17,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3922ab31-70a9-40a0-80d9-4a45c209bfa2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:27:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:18,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:27:18,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:27:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:27:18,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:27:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 22:27:18,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:18,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48269087] [2022-11-25 22:27:18,729 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:27:18,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316348251] [2022-11-25 22:27:18,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316348251] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:27:18,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2031341690] [2022-11-25 22:27:18,734 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-25 22:27:18,734 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:27:18,734 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:27:18,735 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:27:18,735 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:27:18,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:18,831 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 22:27:18,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 22:27:18,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:18,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-25 22:27:18,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:18,869 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:18,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:18,885 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:27:18,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-25 22:27:18,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:18,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:18,943 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-25 22:27:18,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-25 22:27:18,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:18,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:27:18,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:18,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 22:27:19,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,055 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 22:27:19,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 22:27:19,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:27:19,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:27:19,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-25 22:27:19,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-25 22:27:19,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:27:19,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 22:27:19,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:27:19,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:27:19,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:27:19,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:19,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,066 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-25 22:27:20,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-25 22:27:20,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,169 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-25 22:27:20,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-25 22:27:20,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-25 22:27:20,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-25 22:27:20,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:27:20,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 22:27:20,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 22:27:20,560 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:27:20,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-25 22:27:20,603 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-25 22:27:20,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-25 22:27:20,646 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 22:27:20,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-25 22:27:20,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 22:27:20,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:27:20,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-25 22:27:20,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:20,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:27:20,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 22:27:20,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:27:21,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:21,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-25 22:27:21,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-25 22:27:21,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-25 22:27:23,260 INFO L217 Elim1Store]: Index analysis took 1591 ms [2022-11-25 22:27:37,588 WARN L233 SmtUtils]: Spent 14.32s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:27:37,589 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-25 22:27:37,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-25 22:27:40,693 INFO L217 Elim1Store]: Index analysis took 2804 ms [2022-11-25 22:27:42,256 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-25 22:27:42,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-25 22:31:33,832 WARN L233 SmtUtils]: Spent 3.85m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:31:33,833 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-25 22:31:33,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-25 22:31:34,482 INFO L217 Elim1Store]: Index analysis took 299 ms [2022-11-25 22:33:41,426 WARN L233 SmtUtils]: Spent 2.12m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:33:41,427 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-25 22:33:41,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-11-25 22:33:46,448 INFO L217 Elim1Store]: Index analysis took 3890 ms