./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:27:39,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:27:39,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:27:39,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:27:39,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:27:39,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:27:39,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:27:39,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:27:39,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:27:39,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:27:39,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:27:39,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:27:39,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:27:39,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:27:39,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:27:39,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:27:39,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:27:39,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:27:39,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:27:39,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:27:39,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:27:39,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:27:39,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:27:39,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:27:39,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:27:39,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:27:39,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:27:39,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:27:39,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:27:39,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:27:39,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:27:39,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:27:39,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:27:39,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:27:39,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:27:39,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:27:39,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:27:39,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:27:39,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:27:39,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:27:39,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:27:39,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:27:39,167 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:27:39,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:27:39,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:27:39,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:27:39,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:27:39,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:27:39,169 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:27:39,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:27:39,169 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:27:39,170 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:27:39,171 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:27:39,171 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:27:39,171 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:27:39,171 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:27:39,171 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:27:39,172 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:27:39,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:27:39,172 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:27:39,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:27:39,173 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:27:39,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:27:39,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:27:39,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:27:39,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:27:39,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:27:39,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:27:39,175 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:27:39,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:27:39,175 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:27:39,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:27:39,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:27:39,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:27:39,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:27:39,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:27:39,177 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:27:39,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:27:39,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:27:39,177 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:27:39,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:27:39,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:27:39,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:27:39,178 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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2022-11-25 23:27:39,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:27:39,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:27:39,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:27:39,526 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:27:39,526 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:27:39,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2022-11-25 23:27:42,613 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:27:42,922 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:27:42,923 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2022-11-25 23:27:42,952 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/data/c005de42f/f6be5e017f594c949368ff9efc408071/FLAG14bdccc85 [2022-11-25 23:27:42,968 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/data/c005de42f/f6be5e017f594c949368ff9efc408071 [2022-11-25 23:27:42,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:27:42,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:27:42,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:27:42,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:27:42,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:27:42,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:27:42" (1/1) ... [2022-11-25 23:27:42,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c3493c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:42, skipping insertion in model container [2022-11-25 23:27:42,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:27:42" (1/1) ... [2022-11-25 23:27:42,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:27:43,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:27:43,729 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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44118,44131] [2022-11-25 23:27:43,748 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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44660,44673] [2022-11-25 23:27:43,751 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:27:43,862 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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56247,56260] [2022-11-25 23:27:43,863 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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56368,56381] [2022-11-25 23:27:43,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:27:43,909 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:27:43,953 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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44118,44131] [2022-11-25 23:27:43,956 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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44660,44673] [2022-11-25 23:27:43,957 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:27:44,049 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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56247,56260] [2022-11-25 23:27:44,054 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_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56368,56381] [2022-11-25 23:27:44,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:27:44,160 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:27:44,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44 WrapperNode [2022-11-25 23:27:44,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:27:44,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:27:44,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:27:44,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:27:44,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,275 INFO L138 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1195 [2022-11-25 23:27:44,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:27:44,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:27:44,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:27:44,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:27:44,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,387 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:27:44,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:27:44,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:27:44,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:27:44,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (1/1) ... [2022-11-25 23:27:44,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:27:44,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:27:44,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:27:44,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:27:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:27:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 23:27:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:27:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:27:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-11-25 23:27:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-11-25 23:27:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:27:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 23:27:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 23:27:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:27:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:27:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:27:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-11-25 23:27:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-11-25 23:27:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:27:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-11-25 23:27:44,493 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-11-25 23:27:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:27:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:27:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:27:44,822 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:27:44,824 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:27:46,431 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:27:46,945 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:27:46,945 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-25 23:27:46,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:27:46 BoogieIcfgContainer [2022-11-25 23:27:46,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:27:46,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:27:46,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:27:46,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:27:46,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:27:42" (1/3) ... [2022-11-25 23:27:46,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd28ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:27:46, skipping insertion in model container [2022-11-25 23:27:46,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:44" (2/3) ... [2022-11-25 23:27:46,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd28ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:27:46, skipping insertion in model container [2022-11-25 23:27:46,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:27:46" (3/3) ... [2022-11-25 23:27:46,958 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2022-11-25 23:27:46,978 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:27:46,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 23:27:47,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:27:47,041 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;@1fc7b46d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:27:47,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 23:27:47,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 23:27:47,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:27:47,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:47,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:47,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:47,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:47,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1734874149, now seen corresponding path program 1 times [2022-11-25 23:27:47,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:47,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208823785] [2022-11-25 23:27:47,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:47,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:47,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:47,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208823785] [2022-11-25 23:27:47,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208823785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:47,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:47,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:27:47,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380694783] [2022-11-25 23:27:47,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:47,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:27:47,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:27:47,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:27:47,293 INFO L87 Difference]: Start difference. First operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:47,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:47,873 INFO L93 Difference]: Finished difference Result 317 states and 538 transitions. [2022-11-25 23:27:47,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:27:47,878 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 23:27:47,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:47,887 INFO L225 Difference]: With dead ends: 317 [2022-11-25 23:27:47,888 INFO L226 Difference]: Without dead ends: 157 [2022-11-25 23:27:47,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:27:47,896 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:47,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:27:47,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-25 23:27:47,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-11-25 23:27:47,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 134 states have (on average 1.1791044776119404) internal successors, (158), 138 states have internal predecessors, (158), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 23:27:47,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2022-11-25 23:27:47,948 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 7 [2022-11-25 23:27:47,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:47,949 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2022-11-25 23:27:47,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:47,950 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2022-11-25 23:27:47,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:27:47,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:47,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:47,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:27:47,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:47,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:47,952 INFO L85 PathProgramCache]: Analyzing trace with hash 716431104, now seen corresponding path program 1 times [2022-11-25 23:27:47,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:47,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837202909] [2022-11-25 23:27:47,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:47,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:48,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:48,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837202909] [2022-11-25 23:27:48,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837202909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:48,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:48,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:27:48,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934536568] [2022-11-25 23:27:48,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:48,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:27:48,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:27:48,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:27:48,208 INFO L87 Difference]: Start difference. First operand 157 states and 188 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:49,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:49,578 INFO L93 Difference]: Finished difference Result 324 states and 391 transitions. [2022-11-25 23:27:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:27:49,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 23:27:49,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:49,581 INFO L225 Difference]: With dead ends: 324 [2022-11-25 23:27:49,581 INFO L226 Difference]: Without dead ends: 232 [2022-11-25 23:27:49,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:27:49,583 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 74 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:49,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 448 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 23:27:49,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-25 23:27:49,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 159. [2022-11-25 23:27:49,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.1764705882352942) internal successors, (160), 140 states have internal predecessors, (160), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 23:27:49,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 190 transitions. [2022-11-25 23:27:49,611 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 190 transitions. Word has length 9 [2022-11-25 23:27:49,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:49,611 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 190 transitions. [2022-11-25 23:27:49,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:49,612 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 190 transitions. [2022-11-25 23:27:49,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 23:27:49,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:49,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:49,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:27:49,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:49,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:49,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1588621598, now seen corresponding path program 1 times [2022-11-25 23:27:49,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:49,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161405664] [2022-11-25 23:27:49,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:49,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:49,673 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:27:49,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191685807] [2022-11-25 23:27:49,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:49,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:27:49,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:27:49,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:27:49,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:27:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:51,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 23:27:51,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:27:51,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:51,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:27:51,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:51,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161405664] [2022-11-25 23:27:51,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:27:51,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191685807] [2022-11-25 23:27:51,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191685807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:51,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:51,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:51,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66779398] [2022-11-25 23:27:51,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:51,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:27:51,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:51,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:27:51,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:27:51,374 INFO L87 Difference]: Start difference. First operand 159 states and 190 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:54,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:27:55,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:55,659 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2022-11-25 23:27:55,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:27:55,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 23:27:55,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:55,661 INFO L225 Difference]: With dead ends: 170 [2022-11-25 23:27:55,661 INFO L226 Difference]: Without dead ends: 168 [2022-11-25 23:27:55,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:27:55,663 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 125 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:55,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 737 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 23:27:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-25 23:27:55,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-25 23:27:55,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 142 states have (on average 1.176056338028169) internal successors, (167), 147 states have internal predecessors, (167), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 23:27:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2022-11-25 23:27:55,697 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 20 [2022-11-25 23:27:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:55,698 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2022-11-25 23:27:55,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:55,699 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2022-11-25 23:27:55,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 23:27:55,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:55,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:55,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:27:55,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:27:55,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:55,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:55,921 INFO L85 PathProgramCache]: Analyzing trace with hash -486431260, now seen corresponding path program 1 times [2022-11-25 23:27:55,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:55,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839382963] [2022-11-25 23:27:55,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:55,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:56,142 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:27:56,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427703069] [2022-11-25 23:27:56,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:56,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:27:56,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:27:56,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:27:56,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:27:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:56,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:27:56,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:27:57,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:57,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:27:57,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:57,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839382963] [2022-11-25 23:27:57,001 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:27:57,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427703069] [2022-11-25 23:27:57,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427703069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:57,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:57,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:27:57,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124764115] [2022-11-25 23:27:57,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:57,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:27:57,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:57,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:27:57,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:27:57,004 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:58,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:58,274 INFO L93 Difference]: Finished difference Result 408 states and 486 transitions. [2022-11-25 23:27:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:27:58,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-25 23:27:58,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:58,276 INFO L225 Difference]: With dead ends: 408 [2022-11-25 23:27:58,277 INFO L226 Difference]: Without dead ends: 243 [2022-11-25 23:27:58,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:27:58,279 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:58,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 318 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 23:27:58,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-25 23:27:58,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 211. [2022-11-25 23:27:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 185 states have (on average 1.1675675675675676) internal successors, (216), 190 states have internal predecessors, (216), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 23:27:58,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 248 transitions. [2022-11-25 23:27:58,307 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 248 transitions. Word has length 28 [2022-11-25 23:27:58,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:58,310 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 248 transitions. [2022-11-25 23:27:58,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:58,310 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 248 transitions. [2022-11-25 23:27:58,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:27:58,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:58,312 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:58,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:27:58,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:27:58,515 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:27:58,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash 552609167, now seen corresponding path program 1 times [2022-11-25 23:27:58,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:58,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661405518] [2022-11-25 23:27:58,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:58,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:58,575 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:27:58,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619673146] [2022-11-25 23:27:58,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:58,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:27:58,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:27:58,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:27:58,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:27:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:59,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 23:27:59,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:27:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:59,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:27:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:59,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:59,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661405518] [2022-11-25 23:27:59,316 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:27:59,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619673146] [2022-11-25 23:27:59,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619673146] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 23:27:59,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:27:59,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2022-11-25 23:27:59,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808236067] [2022-11-25 23:27:59,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:59,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:27:59,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:59,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:27:59,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:27:59,319 INFO L87 Difference]: Start difference. First operand 211 states and 248 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:28:00,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:00,899 INFO L93 Difference]: Finished difference Result 801 states and 954 transitions. [2022-11-25 23:28:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:28:00,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-25 23:28:00,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:00,904 INFO L225 Difference]: With dead ends: 801 [2022-11-25 23:28:00,904 INFO L226 Difference]: Without dead ends: 606 [2022-11-25 23:28:00,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:28:00,906 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 992 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:00,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 573 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 23:28:00,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-11-25 23:28:00,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 356. [2022-11-25 23:28:00,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 320 states have (on average 1.175) internal successors, (376), 326 states have internal predecessors, (376), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2022-11-25 23:28:00,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 421 transitions. [2022-11-25 23:28:00,943 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 421 transitions. Word has length 32 [2022-11-25 23:28:00,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:00,943 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 421 transitions. [2022-11-25 23:28:00,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:28:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 421 transitions. [2022-11-25 23:28:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 23:28:00,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:00,946 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:00,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:28:01,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:28:01,154 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:28:01,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:01,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2121531562, now seen corresponding path program 1 times [2022-11-25 23:28:01,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:01,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910084084] [2022-11-25 23:28:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:01,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:01,233 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:28:01,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960553206] [2022-11-25 23:28:01,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:01,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:28:01,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:28:01,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:28:01,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:28:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:01,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:28:01,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:28:01,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:28:01,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-25 23:28:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:28:01,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:28:01,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:01,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910084084] [2022-11-25 23:28:01,872 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:28:01,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960553206] [2022-11-25 23:28:01,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960553206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:01,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:01,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:28:01,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545140754] [2022-11-25 23:28:01,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:01,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:28:01,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:01,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:28:01,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:28:01,875 INFO L87 Difference]: Start difference. First operand 356 states and 421 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 23:28:03,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:03,757 INFO L93 Difference]: Finished difference Result 513 states and 616 transitions. [2022-11-25 23:28:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:28:03,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2022-11-25 23:28:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:03,763 INFO L225 Difference]: With dead ends: 513 [2022-11-25 23:28:03,780 INFO L226 Difference]: Without dead ends: 446 [2022-11-25 23:28:03,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:28:03,782 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 49 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:03,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 433 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:28:03,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-11-25 23:28:03,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 360. [2022-11-25 23:28:03,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 330 states have internal predecessors, (380), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2022-11-25 23:28:03,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 425 transitions. [2022-11-25 23:28:03,815 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 425 transitions. Word has length 57 [2022-11-25 23:28:03,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:03,824 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 425 transitions. [2022-11-25 23:28:03,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 23:28:03,825 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 425 transitions. [2022-11-25 23:28:03,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-25 23:28:03,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:03,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:03,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:28:04,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:28:04,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:28:04,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:04,028 INFO L85 PathProgramCache]: Analyzing trace with hash 660071549, now seen corresponding path program 1 times [2022-11-25 23:28:04,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:04,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30520562] [2022-11-25 23:28:04,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:04,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:04,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:28:04,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499215880] [2022-11-25 23:28:04,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:04,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:28:04,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:28:04,092 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:28:04,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:28:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:04,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:28:04,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:28:04,788 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 23:28:04,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:28:04,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:04,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30520562] [2022-11-25 23:28:04,789 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:28:04,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499215880] [2022-11-25 23:28:04,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499215880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:04,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:04,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:28:04,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155075140] [2022-11-25 23:28:04,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:04,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:28:04,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:04,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:28:04,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:28:04,792 INFO L87 Difference]: Start difference. First operand 360 states and 425 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 23:28:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:07,236 INFO L93 Difference]: Finished difference Result 688 states and 814 transitions. [2022-11-25 23:28:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:28:07,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2022-11-25 23:28:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:07,239 INFO L225 Difference]: With dead ends: 688 [2022-11-25 23:28:07,239 INFO L226 Difference]: Without dead ends: 360 [2022-11-25 23:28:07,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:28:07,241 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 15 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:07,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 542 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 23:28:07,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-25 23:28:07,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-11-25 23:28:07,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 330 states have internal predecessors, (380), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-25 23:28:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2022-11-25 23:28:07,269 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 64 [2022-11-25 23:28:07,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:07,269 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2022-11-25 23:28:07,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 23:28:07,270 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2022-11-25 23:28:07,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 23:28:07,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:07,272 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:07,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-25 23:28:07,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:28:07,482 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:28:07,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:07,482 INFO L85 PathProgramCache]: Analyzing trace with hash -712813337, now seen corresponding path program 1 times [2022-11-25 23:28:07,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:07,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691435923] [2022-11-25 23:28:07,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:07,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:07,543 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:28:07,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398339994] [2022-11-25 23:28:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:07,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:28:07,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:28:07,545 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:28:07,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:28:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:10,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 23:28:10,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:28:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 23:28:10,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:28:10,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:10,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691435923] [2022-11-25 23:28:10,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:28:10,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398339994] [2022-11-25 23:28:10,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398339994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:10,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:10,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 23:28:10,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376744049] [2022-11-25 23:28:10,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:10,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:10,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:10,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:10,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:10,238 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 23:28:12,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:28:13,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 23:28:15,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:15,946 INFO L93 Difference]: Finished difference Result 692 states and 821 transitions. [2022-11-25 23:28:15,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 23:28:15,951 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-11-25 23:28:15,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:15,953 INFO L225 Difference]: With dead ends: 692 [2022-11-25 23:28:15,953 INFO L226 Difference]: Without dead ends: 363 [2022-11-25 23:28:15,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:28:15,955 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 14 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:15,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1011 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-25 23:28:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-25 23:28:15,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2022-11-25 23:28:15,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 326 states have (on average 1.1748466257668713) internal successors, (383), 333 states have internal predecessors, (383), 22 states have call successors, (22), 10 states have call predecessors, (22), 11 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2022-11-25 23:28:15,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2022-11-25 23:28:15,982 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 69 [2022-11-25 23:28:15,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:15,983 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2022-11-25 23:28:15,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 23:28:15,983 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2022-11-25 23:28:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 23:28:15,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:15,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:16,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:28:16,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:28:16,206 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:28:16,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:16,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1958213645, now seen corresponding path program 1 times [2022-11-25 23:28:16,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:16,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302553206] [2022-11-25 23:28:16,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:16,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:16,279 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:28:16,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861916975] [2022-11-25 23:28:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:16,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:28:16,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:28:16,281 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:28:16,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc2046f-6064-4a04-81ed-e8ebd3c4679e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:29:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:08,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 23:29:08,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:29:08,443 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:29:08,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:29:08,587 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 23:29:08,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:08,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302553206] [2022-11-25 23:29:08,587 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:29:08,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861916975] [2022-11-25 23:29:08,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861916975] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:29:08,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [104018668] [2022-11-25 23:29:08,616 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-25 23:29:08,617 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:29:08,620 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:29:08,625 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:29:08,625 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:29:08,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:08,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:29:08,766 INFO L321 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2022-11-25 23:29:08,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 93 [2022-11-25 23:29:08,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 23:29:08,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:08,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 27 [2022-11-25 23:29:08,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:08,880 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:29:08,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:29:08,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 23:29:08,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:08,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-25 23:29:08,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 23:29:09,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,074 INFO L321 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2022-11-25 23:29:09,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 109 treesize of output 117 [2022-11-25 23:29:09,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-11-25 23:29:09,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:29:09,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-11-25 23:29:09,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:29:09,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,207 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 0 case distinctions, treesize of input 86 treesize of output 88 [2022-11-25 23:29:09,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,308 INFO L321 Elim1Store]: treesize reduction 40, result has 37.5 percent of original size [2022-11-25 23:29:09,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 48 [2022-11-25 23:29:09,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 23:29:09,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,436 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-25 23:29:09,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-11-25 23:29:09,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:09,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-25 23:29:10,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:29:10,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 23:29:10,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:10,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:10,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:10,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:10,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897398 treesize of output 8253390 [2022-11-25 23:29:10,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:10,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:10,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:10,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:10,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 457 treesize of output 367 [2022-11-25 23:29:11,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 8253076 treesize of output 5376288 [2022-11-25 23:29:11,163 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:29:11,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 93836999 treesize of output 72466161 [2022-11-25 23:29:11,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92193097 treesize of output 72466173 [2022-11-25 23:29:11,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:11,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:29:11,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253091 treesize of output 5376294 [2022-11-25 23:29:11,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 23:29:11,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-25 23:29:12,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:29:12,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 23:29:12,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-11-25 23:29:12,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:29:12,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 23:29:12,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-25 23:29:12,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-11-25 23:29:12,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:12,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:12,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:12,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:12,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 93837028 treesize of output 72466172 [2022-11-25 23:29:12,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:29:12,692 INFO L190 IndexEqualityManager]: detected not equals via solver