./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0 --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 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- 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-e04fb08 [2022-11-16 16:09:53,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:09:53,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:09:53,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:09:53,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:09:53,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:09:53,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:09:53,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:09:53,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:09:53,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:09:53,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:09:53,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:09:53,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:09:53,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:09:53,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:09:53,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:09:53,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:09:53,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:09:53,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:09:53,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:09:53,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:09:53,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:09:53,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:09:53,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:09:53,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:09:53,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:09:53,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:09:53,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:09:53,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:09:53,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:09:53,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:09:53,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:09:53,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:09:53,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:09:53,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:09:53,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:09:53,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:09:53,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:09:53,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:09:53,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:09:53,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:09:53,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 16:09:54,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:09:54,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:09:54,043 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:09:54,044 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:09:54,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:09:54,045 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:09:54,045 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:09:54,046 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:09:54,046 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:09:54,046 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:09:54,047 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:09:54,048 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:09:54,048 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:09:54,048 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:09:54,048 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:09:54,049 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:09:54,049 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:09:54,049 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:09:54,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:09:54,050 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:09:54,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:09:54,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:09:54,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:09:54,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:09:54,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:09:54,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:09:54,052 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:09:54,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:09:54,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:09:54,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:09:54,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:09:54,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:09:54,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:09:54,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:09:54,056 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:09:54,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:09:54,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:09:54,057 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:09:54,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:09:54,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:09:54,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:09:54,058 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_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2022-11-16 16:09:54,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:09:54,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:09:54,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:09:54,450 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:09:54,450 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:09:54,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2022-11-16 16:09:54,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/data/9a5453275/87a6d663633d41b5820d019846bd2c2f/FLAG5ca0f31e9 [2022-11-16 16:09:55,129 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:09:55,129 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2022-11-16 16:09:55,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/data/9a5453275/87a6d663633d41b5820d019846bd2c2f/FLAG5ca0f31e9 [2022-11-16 16:09:55,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/data/9a5453275/87a6d663633d41b5820d019846bd2c2f [2022-11-16 16:09:55,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:09:55,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:09:55,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:09:55,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:09:55,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:09:55,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:09:55" (1/1) ... [2022-11-16 16:09:55,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380a3bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:55, skipping insertion in model container [2022-11-16 16:09:55,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:09:55" (1/1) ... [2022-11-16 16:09:55,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:09:55,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:09:55,915 WARN L229 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_c41c712a-ac76-4d13-9a6a-fd95a862b578/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2022-11-16 16:09:56,075 WARN L229 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_c41c712a-ac76-4d13-9a6a-fd95a862b578/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2022-11-16 16:09:56,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:09:56,097 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:09:56,122 WARN L229 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_c41c712a-ac76-4d13-9a6a-fd95a862b578/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2022-11-16 16:09:56,165 WARN L229 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_c41c712a-ac76-4d13-9a6a-fd95a862b578/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2022-11-16 16:09:56,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:09:56,208 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:09:56,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56 WrapperNode [2022-11-16 16:09:56,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:09:56,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:09:56,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:09:56,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:09:56,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,326 INFO L138 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1177 [2022-11-16 16:09:56,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:09:56,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:09:56,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:09:56,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:09:56,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,501 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:09:56,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:09:56,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:09:56,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:09:56,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (1/1) ... [2022-11-16 16:09:56,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:09:56,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:09:56,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:09:56,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:09:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:09:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 16:09:56,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 16:09:56,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:09:56,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 16:09:56,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 16:09:56,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 16:09:56,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:09:56,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:09:56,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:09:56,624 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 16:09:56,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 16:09:56,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:09:56,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:09:56,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:09:56,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:09:56,908 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:09:56,917 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:09:58,625 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:09:59,101 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:09:59,102 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-16 16:09:59,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:09:59 BoogieIcfgContainer [2022-11-16 16:09:59,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:09:59,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:09:59,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:09:59,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:09:59,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:09:55" (1/3) ... [2022-11-16 16:09:59,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6694a9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:09:59, skipping insertion in model container [2022-11-16 16:09:59,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:09:56" (2/3) ... [2022-11-16 16:09:59,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6694a9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:09:59, skipping insertion in model container [2022-11-16 16:09:59,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:09:59" (3/3) ... [2022-11-16 16:09:59,114 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-2.i [2022-11-16 16:09:59,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:09:59,134 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 16:09:59,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:09:59,194 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;@112e579, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:09:59,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 16:09:59,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 16:09:59,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 16:09:59,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:09:59,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:09:59,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:09:59,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:09:59,214 INFO L85 PathProgramCache]: Analyzing trace with hash 706395230, now seen corresponding path program 1 times [2022-11-16 16:09:59,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:09:59,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542836247] [2022-11-16 16:09:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:09:59,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:09:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:09:59,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:09:59,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:09:59,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542836247] [2022-11-16 16:09:59,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542836247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:09:59,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:09:59,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:09:59,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723728351] [2022-11-16 16:09:59,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:09:59,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 16:09:59,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:09:59,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 16:09:59,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:09:59,499 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:09:59,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:09:59,898 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2022-11-16 16:09:59,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:09:59,903 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 16:09:59,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:09:59,912 INFO L225 Difference]: With dead ends: 273 [2022-11-16 16:09:59,912 INFO L226 Difference]: Without dead ends: 122 [2022-11-16 16:09:59,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:09:59,919 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 16:09:59,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 16:09:59,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-16 16:09:59,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-11-16 16:09:59,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 16:09:59,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-11-16 16:09:59,968 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2022-11-16 16:09:59,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:09:59,969 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-11-16 16:09:59,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:09:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-11-16 16:09:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 16:09:59,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:09:59,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:09:59,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:09:59,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:09:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:09:59,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1888522438, now seen corresponding path program 1 times [2022-11-16 16:09:59,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:09:59,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072317305] [2022-11-16 16:09:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:09:59,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:10:00,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:00,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072317305] [2022-11-16 16:10:00,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072317305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:00,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:00,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:10:00,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045191747] [2022-11-16 16:10:00,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:00,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:00,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:00,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:00,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:00,269 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:02,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:10:03,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:03,428 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2022-11-16 16:10:03,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:03,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 16:10:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:03,438 INFO L225 Difference]: With dead ends: 258 [2022-11-16 16:10:03,439 INFO L226 Difference]: Without dead ends: 189 [2022-11-16 16:10:03,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:10:03,441 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:03,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 355 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-16 16:10:03,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-16 16:10:03,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2022-11-16 16:10:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 16:10:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2022-11-16 16:10:03,468 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2022-11-16 16:10:03,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:03,468 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2022-11-16 16:10:03,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2022-11-16 16:10:03,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-16 16:10:03,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:03,470 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:03,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:10:03,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:10:03,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:03,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1227513377, now seen corresponding path program 1 times [2022-11-16 16:10:03,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:03,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479028483] [2022-11-16 16:10:03,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:03,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:03,658 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:10:03,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823616231] [2022-11-16 16:10:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:03,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:03,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:03,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:03,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:10:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:04,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 16:10:04,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:04,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:10:04,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:10:04,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:04,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479028483] [2022-11-16 16:10:04,593 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:10:04,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823616231] [2022-11-16 16:10:04,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823616231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:04,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:04,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:10:04,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408612988] [2022-11-16 16:10:04,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:04,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:10:04,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:04,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:10:04,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:10:04,596 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:06,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:10:06,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:06,835 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2022-11-16 16:10:06,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:10:06,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-16 16:10:06,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:06,843 INFO L225 Difference]: With dead ends: 304 [2022-11-16 16:10:06,843 INFO L226 Difference]: Without dead ends: 183 [2022-11-16 16:10:06,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:10:06,845 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:06,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 278 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 16:10:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-16 16:10:06,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2022-11-16 16:10:06,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 16:10:06,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2022-11-16 16:10:06,863 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2022-11-16 16:10:06,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:06,863 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2022-11-16 16:10:06,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:06,864 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2022-11-16 16:10:06,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-16 16:10:06,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:06,866 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:06,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:10:07,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:07,076 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:10:07,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:07,077 INFO L85 PathProgramCache]: Analyzing trace with hash 691085995, now seen corresponding path program 1 times [2022-11-16 16:10:07,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:07,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118331538] [2022-11-16 16:10:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:07,185 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:10:07,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609675835] [2022-11-16 16:10:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:07,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:07,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:07,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:07,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:10:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:07,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 16:10:07,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:07,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 16:10:07,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 16:10:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 16:10:07,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:10:07,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:07,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118331538] [2022-11-16 16:10:07,857 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:10:07,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609675835] [2022-11-16 16:10:07,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609675835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:07,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:07,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:10:07,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202754864] [2022-11-16 16:10:07,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:07,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:07,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:07,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:07,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:07,859 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:10:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:09,743 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2022-11-16 16:10:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:09,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-11-16 16:10:09,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:09,749 INFO L225 Difference]: With dead ends: 231 [2022-11-16 16:10:09,749 INFO L226 Difference]: Without dead ends: 212 [2022-11-16 16:10:09,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:10:09,751 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:09,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 354 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 16:10:09,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-16 16:10:09,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2022-11-16 16:10:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 16:10:09,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2022-11-16 16:10:09,765 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2022-11-16 16:10:09,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:09,765 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2022-11-16 16:10:09,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:10:09,766 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2022-11-16 16:10:09,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 16:10:09,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:09,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:09,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 16:10:09,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:09,977 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:10:09,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:09,977 INFO L85 PathProgramCache]: Analyzing trace with hash 400842882, now seen corresponding path program 1 times [2022-11-16 16:10:09,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:09,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103463610] [2022-11-16 16:10:09,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:09,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:10,061 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:10:10,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75337930] [2022-11-16 16:10:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:10,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:10,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:10,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:10,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:10:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:10,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 16:10:10,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 16:10:10,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:10:10,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:10,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103463610] [2022-11-16 16:10:10,827 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:10:10,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75337930] [2022-11-16 16:10:10,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75337930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:10,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:10,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:10:10,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368411525] [2022-11-16 16:10:10,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:10,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:10,830 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:10:11,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:11,846 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2022-11-16 16:10:11,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:10:11,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-16 16:10:11,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:11,849 INFO L225 Difference]: With dead ends: 395 [2022-11-16 16:10:11,849 INFO L226 Difference]: Without dead ends: 242 [2022-11-16 16:10:11,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:10:11,851 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 260 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:11,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 290 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 16:10:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-16 16:10:11,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2022-11-16 16:10:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 16:10:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2022-11-16 16:10:11,874 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2022-11-16 16:10:11,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:11,875 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2022-11-16 16:10:11,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:10:11,875 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2022-11-16 16:10:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 16:10:11,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:11,877 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:11,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 16:10:12,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:12,086 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:10:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:12,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1134780781, now seen corresponding path program 1 times [2022-11-16 16:10:12,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:12,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215013416] [2022-11-16 16:10:12,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:12,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:12,171 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:10:12,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600256984] [2022-11-16 16:10:12,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:12,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:12,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:12,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:12,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:10:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:36,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 16:10:36,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 16:10:36,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:10:36,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:36,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215013416] [2022-11-16 16:10:36,810 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:10:36,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600256984] [2022-11-16 16:10:36,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600256984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:36,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:36,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:10:36,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131585666] [2022-11-16 16:10:36,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:36,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:36,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:36,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:36,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:36,813 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:10:39,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:10:40,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:10:41,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:10:41,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:41,935 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2022-11-16 16:10:41,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:41,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2022-11-16 16:10:41,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:41,946 INFO L225 Difference]: With dead ends: 411 [2022-11-16 16:10:41,946 INFO L226 Difference]: Without dead ends: 216 [2022-11-16 16:10:41,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:10:41,947 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:41,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 392 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-16 16:10:41,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-16 16:10:41,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-11-16 16:10:41,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-16 16:10:41,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2022-11-16 16:10:41,966 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2022-11-16 16:10:41,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:41,967 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2022-11-16 16:10:41,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:10:41,967 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2022-11-16 16:10:41,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-16 16:10:41,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:41,969 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:42,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:10:42,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:42,196 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:10:42,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:42,197 INFO L85 PathProgramCache]: Analyzing trace with hash 14420741, now seen corresponding path program 1 times [2022-11-16 16:10:42,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:42,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304180828] [2022-11-16 16:10:42,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:42,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:42,273 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:10:42,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611188405] [2022-11-16 16:10:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:42,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:42,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:42,275 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:42,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41c712a-ac76-4d13-9a6a-fd95a862b578/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 16:11:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:11:02,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 16:11:02,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:11:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 16:11:02,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:11:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:11:02,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:11:02,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304180828] [2022-11-16 16:11:02,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:11:02,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611188405] [2022-11-16 16:11:02,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611188405] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:11:02,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1905639518] [2022-11-16 16:11:02,311 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-16 16:11:02,311 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:11:02,315 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:11:02,320 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:11:02,321 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:11:02,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-16 16:11:02,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 16:11:02,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,510 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-16 16:11:02,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-16 16:11:02,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,540 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 16:11:02,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 16:11:02,554 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 15 treesize of output 1 [2022-11-16 16:11:02,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,633 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 16:11:02,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-16 16:11:02,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 16:11:02,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,710 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 16:11:02,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 16:11:02,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,735 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 52 treesize of output 49 [2022-11-16 16:11:02,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:02,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 16:11:03,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 16:11:03,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 16:11:03,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-16 16:11:03,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-11-16 16:11:03,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-16 16:11:03,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-16 16:11:03,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-16 16:11:03,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-16 16:11:03,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-16 16:11:03,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 16:11:03,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,782 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-16 16:11:03,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-16 16:11:03,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:03,871 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 16:11:03,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-16 16:11:03,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 16:11:04,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:11:04,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 16:11:04,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:11:04,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-16 16:11:04,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-16 16:11:04,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-16 16:11:04,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:11:04,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 16:11:04,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:11:04,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-16 16:11:04,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-16 16:11:04,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-16 16:11:04,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-16 16:11:04,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:11:04,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-16 16:11:04,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-16 16:11:05,491 INFO L217 Elim1Store]: Index analysis took 550 ms [2022-11-16 16:11:09,749 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-16 16:11:09,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-16 16:11:11,316 INFO L217 Elim1Store]: Index analysis took 1232 ms [2022-11-16 16:11:11,832 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-16 16:11:11,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-16 16:11:19,821 WARN L233 SmtUtils]: Spent 7.85s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 16:11:19,822 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-16 16:11:19,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-16 16:11:20,430 INFO L217 Elim1Store]: Index analysis took 314 ms [2022-11-16 16:11:43,961 WARN L233 SmtUtils]: Spent 23.53s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 16:11:43,962 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-16 16:11:43,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1834 [2022-11-16 16:11:45,960 INFO L217 Elim1Store]: Index analysis took 1036 ms [2022-11-16 16:12:24,431 WARN L233 SmtUtils]: Spent 37.62s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 16:12:24,432 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-11-16 16:12:24,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 5638 treesize of output 15985 [2022-11-16 16:12:26,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:12:26,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-11-16 16:12:26,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:12:26,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:12:26,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:12:26,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-11-16 16:12:27,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:12:27,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-16 16:12:27,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:12:27,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-16 16:12:28,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:12:28,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:12:28,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:12:28,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-16 16:12:31,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:12:31,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-11-16 16:12:31,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:12:31,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-16 16:12:35,304 INFO L217 Elim1Store]: Index analysis took 892 ms