./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW --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 ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 --- 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-4e7fbc6 [2022-11-23 14:19:21,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:19:21,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:19:21,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:19:21,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:19:21,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:19:21,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:19:21,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:19:21,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:19:21,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:19:21,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:19:21,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:19:21,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:19:21,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:19:21,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:19:21,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:19:21,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:19:21,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:19:21,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:19:21,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:19:21,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:19:21,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:19:21,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:19:21,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:19:21,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:19:21,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:19:21,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:19:21,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:19:21,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:19:21,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:19:21,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:19:21,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:19:21,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:19:21,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:19:21,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:19:21,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:19:21,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:19:21,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:19:21,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:19:21,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:19:21,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:19:21,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:19:21,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:19:21,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:19:21,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:19:21,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:19:21,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:19:21,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:19:21,246 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:19:21,246 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:19:21,246 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:19:21,247 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:19:21,248 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:19:21,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:19:21,249 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:19:21,249 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:19:21,250 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:19:21,250 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:19:21,250 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:19:21,251 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:19:21,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:19:21,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:19:21,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:19:21,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:19:21,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:19:21,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:19:21,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:19:21,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:19:21,256 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:19:21,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:19:21,257 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:19:21,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:19:21,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:19:21,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:19:21,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:19:21,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:19:21,259 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:19:21,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:19:21,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:19:21,261 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:19:21,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:19:21,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:19:21,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:19:21,264 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_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 [2022-11-23 14:19:21,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:19:21,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:19:21,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:19:21,736 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:19:21,737 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:19:21,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2022-11-23 14:19:25,479 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:19:25,910 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:19:25,911 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2022-11-23 14:19:25,939 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/data/b20664d94/9490c181527646c8b30832f199098a68/FLAG807332405 [2022-11-23 14:19:25,959 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/data/b20664d94/9490c181527646c8b30832f199098a68 [2022-11-23 14:19:25,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:19:25,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:19:25,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:19:25,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:19:25,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:19:25,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:25" (1/1) ... [2022-11-23 14:19:25,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ae64ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:25, skipping insertion in model container [2022-11-23 14:19:25,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:25" (1/1) ... [2022-11-23 14:19:25,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:19:26,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:19:26,696 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[33021,33034] [2022-11-23 14:19:26,908 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[49681,49694] [2022-11-23 14:19:26,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:19:26,941 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:19:26,977 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[33021,33034] [2022-11-23 14:19:27,066 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[49681,49694] [2022-11-23 14:19:27,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:19:27,183 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:19:27,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27 WrapperNode [2022-11-23 14:19:27,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:19:27,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:19:27,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:19:27,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:19:27,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,376 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-23 14:19:27,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:19:27,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:19:27,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:19:27,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:19:27,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,483 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:19:27,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:19:27,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:19:27,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:19:27,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (1/1) ... [2022-11-23 14:19:27,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:19:27,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:27,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:19:27,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:19:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:19:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:19:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:19:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:19:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:19:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:19:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:19:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:19:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:19:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:19:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:19:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:19:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:19:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:19:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:19:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:19:27,958 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:19:27,960 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:19:30,652 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:19:31,474 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:19:31,475 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-23 14:19:31,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:31 BoogieIcfgContainer [2022-11-23 14:19:31,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:19:31,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:19:31,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:19:31,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:19:31,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:25" (1/3) ... [2022-11-23 14:19:31,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe93484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:31, skipping insertion in model container [2022-11-23 14:19:31,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:27" (2/3) ... [2022-11-23 14:19:31,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe93484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:31, skipping insertion in model container [2022-11-23 14:19:31,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:31" (3/3) ... [2022-11-23 14:19:31,497 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test5-2.i [2022-11-23 14:19:31,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:19:31,522 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:19:31,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:19:31,621 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;@1d6ab492, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:19:31,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:19:31,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:19:31,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:19:31,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:31,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:19:31,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:31,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:31,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-23 14:19:31,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:31,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560010484] [2022-11-23 14:19:31,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:31,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:31,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:31,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560010484] [2022-11-23 14:19:31,903 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 14:19:31,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706475714] [2022-11-23 14:19:31,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:31,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:31,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:31,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:19:31,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:19:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:32,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:19:32,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:19:32,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:19:32,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706475714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:19:32,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:19:32,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:19:32,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65809576] [2022-11-23 14:19:32,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:19:32,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:19:32,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:32,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:19:32,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:19:32,340 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:19:33,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:33,458 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-23 14:19:33,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:19:33,463 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 14:19:33,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:33,475 INFO L225 Difference]: With dead ends: 329 [2022-11-23 14:19:33,475 INFO L226 Difference]: Without dead ends: 150 [2022-11-23 14:19:33,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:19:33,484 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:33,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-23 14:19:33,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-23 14:19:33,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-23 14:19:33,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:19:33,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-23 14:19:33,591 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-23 14:19:33,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:33,592 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-23 14:19:33,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:19:33,594 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-23 14:19:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:19:33,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:33,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:19:33,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:19:33,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 14:19:33,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:33,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-23 14:19:33,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:33,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295162874] [2022-11-23 14:19:33,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:33,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:33,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:33,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295162874] [2022-11-23 14:19:33,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 14:19:33,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465516412] [2022-11-23 14:19:33,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:33,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:33,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:33,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:19:33,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:19:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:34,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:19:34,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:19:34,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:19:34,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465516412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:19:34,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:19:34,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:19:34,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995379533] [2022-11-23 14:19:34,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:19:34,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:19:34,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:19:34,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:19:34,323 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:19:35,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:35,773 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-23 14:19:35,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:19:35,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-23 14:19:35,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:35,780 INFO L225 Difference]: With dead ends: 342 [2022-11-23 14:19:35,781 INFO L226 Difference]: Without dead ends: 290 [2022-11-23 14:19:35,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:19:35,783 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:35,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-23 14:19:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-23 14:19:35,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-23 14:19:35,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:19:35,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-23 14:19:35,811 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-23 14:19:35,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:35,812 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-23 14:19:35,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:19:35,812 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-23 14:19:35,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 14:19:35,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:35,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:19:35,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:19:36,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:36,026 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:36,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:36,027 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-23 14:19:36,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:36,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075258469] [2022-11-23 14:19:36,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:36,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:36,442 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:19:36,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756862532] [2022-11-23 14:19:36,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:36,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:36,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:36,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:19:36,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:19:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:38,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:19:38,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:38,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:19:38,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:19:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:19:38,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:38,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075258469] [2022-11-23 14:19:38,438 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:19:38,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756862532] [2022-11-23 14:19:38,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756862532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:19:38,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1790719304] [2022-11-23 14:19:38,479 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-23 14:19:38,479 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:19:38,485 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:19:38,494 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:19:38,495 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:19:38,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:38,702 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:19:38,703 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 [2022-11-23 14:19:38,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:38,750 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:19:38,751 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 [2022-11-23 14:19:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:38,817 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 [2022-11-23 14:19:38,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:38,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:38,870 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:19:38,871 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 [2022-11-23 14:19:38,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:38,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:38,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-23 14:19:38,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:38,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:19:38,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-23 14:19:38,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:38,958 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 [2022-11-23 14:19:39,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:19:39,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:39,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 14:19:39,900 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 [2022-11-23 14:19:39,928 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 [2022-11-23 14:19:40,474 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 [2022-11-23 14:19:40,495 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 [2022-11-23 14:19:40,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:19:40,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:19:40,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 14:19:40,731 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:19:49,664 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:19:59,953 WARN L233 SmtUtils]: Spent 8.15s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:19:59,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1790719304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:19:59,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:19:59,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 14:19:59,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403476020] [2022-11-23 14:19:59,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:19:59,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:19:59,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:59,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:19:59,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-23 14:19:59,962 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:20:03,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:20:05,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:20:07,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:20:12,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:20:13,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:20:13,031 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-11-23 14:20:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:20:13,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-23 14:20:13,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:20:13,033 INFO L225 Difference]: With dead ends: 313 [2022-11-23 14:20:13,033 INFO L226 Difference]: Without dead ends: 164 [2022-11-23 14:20:13,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-23 14:20:13,035 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 9 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:20:13,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 402 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2022-11-23 14:20:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-23 14:20:13,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-11-23 14:20:13,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:20:13,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-23 14:20:13,057 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-23 14:20:13,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:20:13,057 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-23 14:20:13,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:20:13,058 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-23 14:20:13,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-23 14:20:13,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:20:13,060 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:20:13,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 14:20:13,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:20:13,273 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:20:13,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:20:13,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-23 14:20:13,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:20:13,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285718261] [2022-11-23 14:20:13,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:20:13,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:20:13,455 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:20:13,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1325417971] [2022-11-23 14:20:13,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:20:13,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:20:13,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:20:13,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:20:13,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:20:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:20:14,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:20:14,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:20:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:20:14,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:20:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:20:15,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:20:15,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285718261] [2022-11-23 14:20:15,129 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:20:15,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325417971] [2022-11-23 14:20:15,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325417971] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:20:15,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1104196217] [2022-11-23 14:20:15,138 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:20:15,139 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:20:15,141 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:20:15,141 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:20:15,142 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:20:15,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:15,304 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:20:15,304 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 [2022-11-23 14:20:15,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:15,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:20:15,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:15,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:15,396 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:20:15,397 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 [2022-11-23 14:20:15,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:15,424 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 [2022-11-23 14:20:15,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:15,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:15,493 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:20:15,494 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 [2022-11-23 14:20:15,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:15,532 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 [2022-11-23 14:20:15,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:15,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:20:15,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-23 14:20:16,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:20:16,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-23 14:20:16,197 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 [2022-11-23 14:20:16,222 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 [2022-11-23 14:20:16,264 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 [2022-11-23 14:20:16,280 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 [2022-11-23 14:20:16,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:20:16,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:20:16,549 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 [2022-11-23 14:20:16,584 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 [2022-11-23 14:20:16,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,679 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:20:16,679 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 [2022-11-23 14:20:16,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,801 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:20:16,802 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 [2022-11-23 14:20:16,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:16,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:20:17,850 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 [2022-11-23 14:20:17,871 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 [2022-11-23 14:20:17,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:20:17,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:17,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 14:20:18,116 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 [2022-11-23 14:20:18,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:20:18,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:20:18,299 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 [2022-11-23 14:20:18,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:20:18,446 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 [2022-11-23 14:20:18,482 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 [2022-11-23 14:20:18,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,593 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:20:18,593 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 [2022-11-23 14:20:18,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:20:18,712 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:20:18,712 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 [2022-11-23 14:20:19,236 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-23 14:20:19,554 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:20:26,114 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:20:34,696 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:20:44,988 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:20:58,616 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:21:18,380 WARN L233 SmtUtils]: Spent 13.55s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:21:19,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1104196217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:21:19,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:21:19,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 14:21:19,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065128984] [2022-11-23 14:21:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:21:19,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:21:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:21:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:21:19,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:21:19,761 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:21:22,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:21:24,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:21:26,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:21:28,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:21:30,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:21:32,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:21:34,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:21:36,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:21:38,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:21:43,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:21:43,381 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-23 14:21:43,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:21:43,382 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-23 14:21:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:21:43,383 INFO L225 Difference]: With dead ends: 315 [2022-11-23 14:21:43,383 INFO L226 Difference]: Without dead ends: 166 [2022-11-23 14:21:43,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 60.2s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:21:43,386 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 17 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 9 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:21:43,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 402 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 23.6s Time] [2022-11-23 14:21:43,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-23 14:21:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-23 14:21:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 14:21:43,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-23 14:21:43,451 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-23 14:21:43,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:21:43,452 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-23 14:21:43,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:21:43,453 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-23 14:21:43,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:21:43,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:21:43,458 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:21:43,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 14:21:43,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:21:43,658 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:21:43,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:21:43,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-23 14:21:43,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:21:43,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032947697] [2022-11-23 14:21:43,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:21:43,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:21:43,887 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:21:43,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [973123317] [2022-11-23 14:21:43,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:21:43,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:21:43,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:21:43,890 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:21:43,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f6535-aed4-4f32-a646-3585531faccc/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:21:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:21:45,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:21:45,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:21:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:21:45,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:21:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:21:45,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:21:45,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032947697] [2022-11-23 14:21:45,645 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:21:45,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973123317] [2022-11-23 14:21:45,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973123317] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:21:45,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1770891007] [2022-11-23 14:21:45,649 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:21:45,649 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:21:45,650 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:21:45,650 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:21:45,650 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:21:45,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,763 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:21:45,763 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 [2022-11-23 14:21:45,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:21:45,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:21:45,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,815 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:21:45,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-23 14:21:45,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,863 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:21:45,863 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 [2022-11-23 14:21:45,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,885 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 [2022-11-23 14:21:45,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,901 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 [2022-11-23 14:21:45,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:45,954 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:21:45,954 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 [2022-11-23 14:21:46,304 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 [2022-11-23 14:21:46,320 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 [2022-11-23 14:21:46,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:21:46,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 14:21:46,469 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 [2022-11-23 14:21:46,484 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 [2022-11-23 14:21:46,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:21:46,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:21:46,672 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 [2022-11-23 14:21:46,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,752 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:21:46,753 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 [2022-11-23 14:21:46,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,848 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:21:46,849 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 [2022-11-23 14:21:46,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:46,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:21:46,948 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 [2022-11-23 14:21:47,159 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 [2022-11-23 14:21:47,164 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 13 treesize of output 9 [2022-11-23 14:21:47,170 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 11 treesize of output 7 [2022-11-23 14:21:47,226 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:21:47,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-23 14:21:47,270 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-23 14:21:47,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-23 14:21:47,305 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:21:47,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-23 14:21:47,342 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 [2022-11-23 14:21:47,348 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 [2022-11-23 14:21:47,355 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 [2022-11-23 14:21:47,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 14:21:47,476 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 [2022-11-23 14:21:47,497 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 [2022-11-23 14:21:47,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:21:47,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 14:21:47,720 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 [2022-11-23 14:21:47,740 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 [2022-11-23 14:21:49,278 INFO L217 Elim1Store]: Index analysis took 1094 ms [2022-11-23 14:21:59,596 WARN L233 SmtUtils]: Spent 10.31s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:21:59,597 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 14:21:59,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-23 14:22:04,795 INFO L217 Elim1Store]: Index analysis took 4991 ms [2022-11-23 14:22:05,516 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 14:22:05,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-23 14:26:10,037 WARN L233 SmtUtils]: Spent 4.07m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:26:10,038 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-23 14:26:10,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-23 14:26:10,660 INFO L217 Elim1Store]: Index analysis took 217 ms [2022-11-23 14:27:56,350 WARN L233 SmtUtils]: Spent 1.76m 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) [2022-11-23 14:27:56,350 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 14:27:56,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-11-23 14:28:01,067 INFO L217 Elim1Store]: Index analysis took 3132 ms