./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh --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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- 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-2329fc7 [2022-12-14 03:07:15,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:07:15,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:07:15,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:07:15,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:07:15,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:07:15,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:07:15,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:07:15,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:07:15,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:07:15,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:07:15,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:07:15,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:07:15,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:07:15,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:07:15,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:07:15,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:07:15,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:07:15,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:07:15,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:07:15,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:07:15,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:07:15,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:07:15,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:07:15,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:07:15,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:07:15,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:07:15,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:07:15,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:07:15,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:07:15,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:07:15,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:07:15,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:07:15,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:07:15,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:07:15,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:07:15,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:07:15,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:07:15,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:07:15,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:07:15,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:07:15,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 03:07:15,955 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:07:15,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:07:15,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:07:15,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:07:15,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:07:15,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:07:15,957 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:07:15,957 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:07:15,957 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:07:15,957 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:07:15,957 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:07:15,958 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:07:15,958 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:07:15,958 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:07:15,958 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:07:15,959 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:07:15,959 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:07:15,959 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:07:15,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:07:15,960 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 03:07:15,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:07:15,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 03:07:15,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:07:15,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:07:15,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:07:15,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:07:15,960 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 03:07:15,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:07:15,961 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:07:15,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:07:15,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:07:15,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:07:15,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:07:15,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:07:15,962 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:07:15,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:07:15,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:07:15,962 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:07:15,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:07:15,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:07:15,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:07:15,962 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_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2022-12-14 03:07:16,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:07:16,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:07:16,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:07:16,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:07:16,172 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:07:16,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2022-12-14 03:07:18,784 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:07:18,963 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:07:18,963 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2022-12-14 03:07:18,973 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/data/a057b6980/049253b997764bd5b9f3e6264300452a/FLAGba4c74112 [2022-12-14 03:07:18,983 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/data/a057b6980/049253b997764bd5b9f3e6264300452a [2022-12-14 03:07:18,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:07:18,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:07:18,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:07:18,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:07:18,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:07:18,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:07:18" (1/1) ... [2022-12-14 03:07:18,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aca9737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:18, skipping insertion in model container [2022-12-14 03:07:18,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:07:18" (1/1) ... [2022-12-14 03:07:18,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:07:19,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:07:19,282 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_e5fc9989-44fd-4164-be49-0ffeff2b3706/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2022-12-14 03:07:19,339 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 03:07:19,346 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_e5fc9989-44fd-4164-be49-0ffeff2b3706/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2022-12-14 03:07:19,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:07:19,363 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:07:19,384 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_e5fc9989-44fd-4164-be49-0ffeff2b3706/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2022-12-14 03:07:19,414 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 03:07:19,419 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_e5fc9989-44fd-4164-be49-0ffeff2b3706/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2022-12-14 03:07:19,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:07:19,480 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:07:19,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19 WrapperNode [2022-12-14 03:07:19,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:07:19,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:07:19,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:07:19,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:07:19,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,557 INFO L138 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-12-14 03:07:19,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:07:19,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:07:19,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:07:19,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:07:19,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:07:19,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:07:19,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:07:19,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:07:19,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (1/1) ... [2022-12-14 03:07:19,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:07:19,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:07:19,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:07:19,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:07:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 03:07:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 03:07:19,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 03:07:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 03:07:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 03:07:19,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 03:07:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-12-14 03:07:19,701 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-12-14 03:07:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 03:07:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:07:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 03:07:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:07:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 03:07:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 03:07:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:07:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:07:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:07:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:07:19,870 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:07:19,872 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:07:21,202 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:07:21,542 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:07:21,542 INFO L300 CfgBuilder]: Removed 71 assume(true) statements. [2022-12-14 03:07:21,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:07:21 BoogieIcfgContainer [2022-12-14 03:07:21,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:07:21,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:07:21,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:07:21,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:07:21,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:07:18" (1/3) ... [2022-12-14 03:07:21,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5440ddb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:07:21, skipping insertion in model container [2022-12-14 03:07:21,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:19" (2/3) ... [2022-12-14 03:07:21,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5440ddb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:07:21, skipping insertion in model container [2022-12-14 03:07:21,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:07:21" (3/3) ... [2022-12-14 03:07:21,554 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-2.i [2022-12-14 03:07:21,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:07:21,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 03:07:21,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:07:21,611 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;@4af3ed29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:07:21,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 03:07:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-12-14 03:07:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 03:07:21,620 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:07:21,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:07:21,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:07:21,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:07:21,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1439031123, now seen corresponding path program 1 times [2022-12-14 03:07:21,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:07:21,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871904806] [2022-12-14 03:07:21,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:07:21,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:07:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:07:21,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:07:21,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:07:21,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871904806] [2022-12-14 03:07:21,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871904806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:07:21,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:07:21,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 03:07:21,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11558457] [2022-12-14 03:07:21,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:07:21,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:07:21,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:07:21,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:07:21,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:07:21,797 INFO L87 Difference]: Start difference. First operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:07:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:07:22,719 INFO L93 Difference]: Finished difference Result 323 states and 584 transitions. [2022-12-14 03:07:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:07:22,721 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 03:07:22,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:07:22,731 INFO L225 Difference]: With dead ends: 323 [2022-12-14 03:07:22,731 INFO L226 Difference]: Without dead ends: 146 [2022-12-14 03:07:22,735 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 [2022-12-14 03:07:22,739 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:07:22,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:07:22,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-14 03:07:22,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-12-14 03:07:22,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-12-14 03:07:22,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-12-14 03:07:22,787 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2022-12-14 03:07:22,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:07:22,787 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-12-14 03:07:22,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:07:22,788 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2022-12-14 03:07:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 03:07:22,789 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:07:22,789 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] [2022-12-14 03:07:22,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 03:07:22,790 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:07:22,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:07:22,791 INFO L85 PathProgramCache]: Analyzing trace with hash 607279358, now seen corresponding path program 1 times [2022-12-14 03:07:22,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:07:22,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344067605] [2022-12-14 03:07:22,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:07:22,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:07:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:07:23,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:07:23,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:07:23,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344067605] [2022-12-14 03:07:23,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344067605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:07:23,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:07:23,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:07:23,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830986619] [2022-12-14 03:07:23,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:07:23,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:07:23,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:07:23,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:07:23,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:07:23,051 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-12-14 03:07:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:07:24,100 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2022-12-14 03:07:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:07:24,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-12-14 03:07:24,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:07:24,103 INFO L225 Difference]: With dead ends: 293 [2022-12-14 03:07:24,103 INFO L226 Difference]: Without dead ends: 202 [2022-12-14 03:07:24,104 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 [2022-12-14 03:07:24,105 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:07:24,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 03:07:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-12-14 03:07:24,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2022-12-14 03:07:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-12-14 03:07:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-12-14 03:07:24,121 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2022-12-14 03:07:24,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:07:24,121 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-12-14 03:07:24,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-12-14 03:07:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-12-14 03:07:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 03:07:24,122 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:07:24,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:07:24,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 03:07:24,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:07:24,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:07:24,124 INFO L85 PathProgramCache]: Analyzing trace with hash 308617378, now seen corresponding path program 1 times [2022-12-14 03:07:24,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:07:24,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436536215] [2022-12-14 03:07:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:07:24,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:07:24,233 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:07:24,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2120110290] [2022-12-14 03:07:24,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:07:24,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:07:24,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:07:24,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:07:24,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 03:07:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:07:24,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 03:07:24,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:07:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:07:24,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:07:24,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:07:24,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436536215] [2022-12-14 03:07:24,854 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:07:24,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120110290] [2022-12-14 03:07:24,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120110290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:07:24,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:07:24,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 03:07:24,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586471431] [2022-12-14 03:07:24,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:07:24,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:07:24,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:07:24,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:07:24,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:07:24,856 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-12-14 03:07:25,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:07:25,821 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2022-12-14 03:07:25,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:07:25,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 32 [2022-12-14 03:07:25,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:07:25,823 INFO L225 Difference]: With dead ends: 341 [2022-12-14 03:07:25,823 INFO L226 Difference]: Without dead ends: 196 [2022-12-14 03:07:25,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:07:25,825 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:07:25,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 341 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 03:07:25,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-12-14 03:07:25,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-12-14 03:07:25,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2022-12-14 03:07:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-12-14 03:07:25,834 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2022-12-14 03:07:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:07:25,835 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-12-14 03:07:25,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-12-14 03:07:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-12-14 03:07:25,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 03:07:25,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:07:25,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:07:25,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 03:07:26,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:07:26,038 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:07:26,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:07:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash 922198994, now seen corresponding path program 1 times [2022-12-14 03:07:26,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:07:26,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792899273] [2022-12-14 03:07:26,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:07:26,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:07:26,129 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:07:26,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098283418] [2022-12-14 03:07:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:07:26,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:07:26,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:07:26,131 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:07:26,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 03:08:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:08:00,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 03:08:00,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:08:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 03:08:00,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:08:00,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:08:00,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792899273] [2022-12-14 03:08:00,805 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:08:00,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098283418] [2022-12-14 03:08:00,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098283418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:08:00,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:08:00,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:08:00,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301775253] [2022-12-14 03:08:00,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:08:00,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:08:00,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:08:00,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:08:00,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:08:00,808 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 03:08:02,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 03:08:02,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:08:02,568 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2022-12-14 03:08:02,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:08:02,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-12-14 03:08:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:08:02,573 INFO L225 Difference]: With dead ends: 372 [2022-12-14 03:08:02,573 INFO L226 Difference]: Without dead ends: 195 [2022-12-14 03:08:02,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:08:02,574 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:08:02,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 03:08:02,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-12-14 03:08:02,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-12-14 03:08:02,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2022-12-14 03:08:02,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2022-12-14 03:08:02,583 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2022-12-14 03:08:02,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:08:02,583 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2022-12-14 03:08:02,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 03:08:02,583 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2022-12-14 03:08:02,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 03:08:02,584 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:08:02,584 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:08:02,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 03:08:02,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:02,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 03:08:02,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:08:02,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1894472968, now seen corresponding path program 1 times [2022-12-14 03:08:02,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:08:02,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787422711] [2022-12-14 03:08:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:02,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:08:02,846 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:08:02,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132624929] [2022-12-14 03:08:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:08:02,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:08:02,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:08:02,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:08:02,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5fc9989-44fd-4164-be49-0ffeff2b3706/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 03:08:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:08:15,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 03:08:15,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:08:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 03:08:15,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 03:08:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 03:08:15,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:08:15,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787422711] [2022-12-14 03:08:15,350 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 03:08:15,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132624929] [2022-12-14 03:08:15,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132624929] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 03:08:15,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1777803511] [2022-12-14 03:08:15,369 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-12-14 03:08:15,369 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 03:08:15,372 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 03:08:15,375 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 03:08:15,376 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 03:08:15,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 03:08:15,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 03:08:15,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,470 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 03:08:15,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 03:08:15,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 03:08:15,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 03:08:15,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,528 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 03:08:15,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-12-14 03:08:15,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,563 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 03:08:15,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 03:08:15,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 03:08:15,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 03:08:15,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:15,640 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 03:08:15,641 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 [2022-12-14 03:08:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-12-14 03:08:16,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-12-14 03:08:16,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 03:08:16,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 03:08:16,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 03:08:16,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 03:08:16,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 03:08:16,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 03:08:16,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 03:08:16,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,483 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 03:08:16,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 03:08:16,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-12-14 03:08:16,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 03:08:16,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 03:08:16,704 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 [2022-12-14 03:08:16,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 03:08:16,712 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 [2022-12-14 03:08:16,754 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 03:08:16,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-12-14 03:08:16,780 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 03:08:16,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-12-14 03:08:16,803 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 03:08:16,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-12-14 03:08:16,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 03:08:16,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 03:08:16,852 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 [2022-12-14 03:08:16,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:16,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 03:08:16,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 03:08:16,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 03:08:17,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 03:08:17,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 03:08:17,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 03:08:17,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 03:08:18,330 INFO L217 Elim1Store]: Index analysis took 899 ms [2022-12-14 03:08:21,805 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 03:08:21,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-12-14 03:08:22,571 INFO L217 Elim1Store]: Index analysis took 625 ms [2022-12-14 03:08:23,107 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 03:08:23,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-12-14 03:10:24,366 WARN L233 SmtUtils]: Spent 2.02m on a formula simplification. DAG size of input: 175 DAG size of output: 92 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 03:10:24,367 INFO L321 Elim1Store]: treesize reduction 1193, result has 25.3 percent of original size [2022-12-14 03:10:24,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 9890 treesize of output 6802 [2022-12-14 03:10:37,554 WARN L233 SmtUtils]: Spent 13.01s on a formula simplification. DAG size of input: 80 DAG size of output: 13 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 03:10:37,555 INFO L321 Elim1Store]: treesize reduction 252, result has 6.7 percent of original size [2022-12-14 03:10:37,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 10021 treesize of output 9263 [2022-12-14 03:10:37,905 INFO L217 Elim1Store]: Index analysis took 173 ms [2022-12-14 03:11:39,270 WARN L233 SmtUtils]: Spent 1.02m on a formula simplification. DAG size of input: 91 DAG size of output: 46 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 03:11:39,271 INFO L321 Elim1Store]: treesize reduction 338, result has 31.4 percent of original size [2022-12-14 03:11:39,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 10438 treesize of output 9115 [2022-12-14 03:11:42,392 INFO L217 Elim1Store]: Index analysis took 2037 ms [2022-12-14 03:14:44,397 WARN L233 SmtUtils]: Spent 3.01m on a formula simplification. DAG size of input: 408 DAG size of output: 225 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 03:14:44,398 INFO L321 Elim1Store]: treesize reduction 11269, result has 26.7 percent of original size [2022-12-14 03:14:44,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 9192 treesize of output 12130