./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 16:00:18,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:00:18,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:00:18,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:00:18,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:00:18,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:00:18,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:00:18,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:00:18,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:00:18,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:00:18,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:00:18,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:00:18,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:00:18,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:00:18,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:00:18,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:00:18,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:00:18,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:00:18,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:00:18,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:00:18,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:00:18,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:00:18,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:00:18,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:00:18,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:00:18,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:00:18,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:00:18,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:00:18,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:00:18,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:00:18,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:00:18,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:00:18,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:00:18,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:00:18,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:00:18,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:00:18,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:00:18,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:00:18,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:00:18,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:00:18,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:00:18,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 16:00:18,290 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:00:18,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:00:18,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 16:00:18,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 16:00:18,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:00:18,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 16:00:18,292 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 16:00:18,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 16:00:18,292 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 16:00:18,292 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 16:00:18,292 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 16:00:18,292 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 16:00:18,293 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 16:00:18,293 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 16:00:18,293 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 16:00:18,293 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 16:00:18,293 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 16:00:18,294 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 16:00:18,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:00:18,294 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 16:00:18,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 16:00:18,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 16:00:18,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:00:18,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:00:18,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:00:18,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:00:18,295 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 16:00:18,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:00:18,295 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:00:18,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:00:18,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:00:18,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 16:00:18,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:00:18,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:00:18,296 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 16:00:18,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:00:18,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:00:18,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 16:00:18,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 16:00:18,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:00:18,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 16:00:18,297 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_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2022-12-14 16:00:18,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:00:18,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:00:18,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:00:18,482 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:00:18,483 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:00:18,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2022-12-14 16:00:21,040 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:00:21,271 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:00:21,271 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2022-12-14 16:00:21,282 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/data/b6c93742e/d6d81235248c4d308df8565c11739695/FLAG60824dee4 [2022-12-14 16:00:21,617 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/data/b6c93742e/d6d81235248c4d308df8565c11739695 [2022-12-14 16:00:21,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:00:21,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:00:21,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:00:21,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:00:21,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:00:21,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:00:21" (1/1) ... [2022-12-14 16:00:21,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6107ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:21, skipping insertion in model container [2022-12-14 16:00:21,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:00:21" (1/1) ... [2022-12-14 16:00:21,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:00:21,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:00:21,928 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_ecd8669f-8135-4222-9417-0b0f5c147327/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i[33021,33034] [2022-12-14 16:00:22,008 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 16:00:22,010 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_ecd8669f-8135-4222-9417-0b0f5c147327/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i[49681,49694] [2022-12-14 16:00:22,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:00:22,032 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:00:22,053 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_ecd8669f-8135-4222-9417-0b0f5c147327/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i[33021,33034] [2022-12-14 16:00:22,128 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 16:00:22,129 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i[49681,49694] [2022-12-14 16:00:22,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:00:22,160 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:00:22,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22 WrapperNode [2022-12-14 16:00:22,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:00:22,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:00:22,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:00:22,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:00:22,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,236 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-12-14 16:00:22,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:00:22,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:00:22,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:00:22,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:00:22,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,301 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:00:22,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:00:22,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:00:22,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:00:22,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (1/1) ... [2022-12-14 16:00:22,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:00:22,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:22,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 16:00:22,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 16:00:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 16:00:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 16:00:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 16:00:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:00:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:00:22,566 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:00:22,567 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:00:23,916 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:00:24,369 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:00:24,369 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-12-14 16:00:24,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:24 BoogieIcfgContainer [2022-12-14 16:00:24,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:00:24,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 16:00:24,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 16:00:24,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 16:00:24,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:00:21" (1/3) ... [2022-12-14 16:00:24,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c6099d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:00:24, skipping insertion in model container [2022-12-14 16:00:24,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:22" (2/3) ... [2022-12-14 16:00:24,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c6099d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:00:24, skipping insertion in model container [2022-12-14 16:00:24,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:24" (3/3) ... [2022-12-14 16:00:24,379 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-3.i [2022-12-14 16:00:24,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 16:00:24,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 16:00:24,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 16:00:24,443 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;@7233eece, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 16:00:24,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 16:00:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 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) [2022-12-14 16:00:24,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 16:00:24,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:24,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 16:00:24,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:00:24,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:24,458 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-12-14 16:00:24,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:24,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783955993] [2022-12-14 16:00:24,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:24,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:24,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:00:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783955993] [2022-12-14 16:00:24,589 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 16:00:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112981976] [2022-12-14 16:00:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:24,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:24,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:24,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:00:24,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 16:00:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:24,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 16:00:24,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:00:24,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:00:24,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:00:24,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112981976] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:00:24,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:00:24,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 16:00:24,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923724757] [2022-12-14 16:00:24,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:00:24,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 16:00:24,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:00:24,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 16:00:24,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 16:00:24,808 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 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) [2022-12-14 16:00:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:00:25,588 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-12-14 16:00:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 16:00:25,594 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 [2022-12-14 16:00:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:00:25,600 INFO L225 Difference]: With dead ends: 353 [2022-12-14 16:00:25,600 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 16:00:25,603 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 [2022-12-14 16:00:25,605 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:00:25,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 16:00:25,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 16:00:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 16:00:25,635 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) [2022-12-14 16:00:25,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-12-14 16:00:25,637 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-12-14 16:00:25,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:00:25,637 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-12-14 16:00:25,637 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) [2022-12-14 16:00:25,637 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-12-14 16:00:25,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 16:00:25,638 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:25,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:00:25,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-14 16:00:25,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 16:00:25,841 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:00:25,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:25,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-12-14 16:00:25,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:25,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622431428] [2022-12-14 16:00:25,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:25,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:25,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:00:25,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622431428] [2022-12-14 16:00:25,904 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 16:00:25,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088971764] [2022-12-14 16:00:25,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:25,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:25,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:25,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:00:25,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 16:00:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:26,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 16:00:26,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:00:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:00:26,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 16:00:26,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088971764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:00:26,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:00:26,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 16:00:26,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54602682] [2022-12-14 16:00:26,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:00:26,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 16:00:26,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:00:26,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 16:00:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 16:00:26,083 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) [2022-12-14 16:00:27,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:00:27,761 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-12-14 16:00:27,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 16:00:27,766 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 [2022-12-14 16:00:27,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:00:27,768 INFO L225 Difference]: With dead ends: 342 [2022-12-14 16:00:27,768 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 16:00:27,768 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 [2022-12-14 16:00:27,769 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 16:00:27,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 16:00:27,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 16:00:27,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-12-14 16:00:27,784 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) [2022-12-14 16:00:27,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-12-14 16:00:27,786 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-12-14 16:00:27,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:00:27,786 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-12-14 16:00:27,786 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) [2022-12-14 16:00:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-12-14 16:00:27,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 16:00:27,788 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:27,788 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] [2022-12-14 16:00:27,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 16:00:27,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:27,990 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:00:27,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:27,992 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-12-14 16:00:27,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:27,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508263379] [2022-12-14 16:00:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:27,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:28,201 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:00:28,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698521579] [2022-12-14 16:00:28,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:28,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:28,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:28,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:00:28,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 16:00:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:29,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:00:29,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:00:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:00:29,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:00:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:00:29,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:00:29,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508263379] [2022-12-14 16:00:29,235 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:00:29,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698521579] [2022-12-14 16:00:29,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698521579] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:00:29,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [333260442] [2022-12-14 16:00:29,250 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 16:00:29,250 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:00:29,253 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:00:29,257 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:00:29,258 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:00:29,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,381 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 16:00:29,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 16:00:29,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 16:00:29,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 16:00:29,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 16:00:29,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,446 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 16:00:29,446 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 [2022-12-14 16:00:29,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,489 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 16:00:29,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 16:00:29,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,510 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 [2022-12-14 16:00:29,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,522 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 [2022-12-14 16:00:29,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:00:29,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,835 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 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 16:00:29,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:29,873 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 [2022-12-14 16:00:29,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:00:30,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:00:30,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:00:30,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,239 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 [2022-12-14 16:00:30,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:00:30,274 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 [2022-12-14 16:00:30,307 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 16:00:44,129 WARN L233 SmtUtils]: Spent 5.66s 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) [2022-12-14 16:00:44,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [333260442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:00:44,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 16:00:44,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 16:00:44,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845015505] [2022-12-14 16:00:44,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:00:44,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 16:00:44,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:00:44,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 16:00:44,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-12-14 16:00:44,136 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) [2022-12-14 16:00:46,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:00:48,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:00:53,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 16:00:57,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 16:00:58,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 16:00:59,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:00:59,364 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-12-14 16:00:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 16:00:59,365 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 [2022-12-14 16:00:59,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:00:59,366 INFO L225 Difference]: With dead ends: 310 [2022-12-14 16:00:59,366 INFO L226 Difference]: Without dead ends: 161 [2022-12-14 16:00:59,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-12-14 16:00:59,367 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-12-14 16:00:59,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 315 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2022-12-14 16:00:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-14 16:00:59,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-12-14 16:00:59,387 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) [2022-12-14 16:00:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 16:00:59,388 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-12-14 16:00:59,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:00:59,388 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 16:00:59,389 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) [2022-12-14 16:00:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 16:00:59,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 16:00:59,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:59,391 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] [2022-12-14 16:00:59,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 16:00:59,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:59,592 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:00:59,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:59,593 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-12-14 16:00:59,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:59,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403985531] [2022-12-14 16:00:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:59,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:59,724 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:00:59,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570328642] [2022-12-14 16:00:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:59,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:59,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:59,726 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:00:59,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 16:01:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:01:00,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:01:00,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:01:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 16:01:00,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:01:00,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 16:01:00,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:01:00,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403985531] [2022-12-14 16:01:00,514 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:01:00,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570328642] [2022-12-14 16:01:00,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570328642] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:01:00,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1582249197] [2022-12-14 16:01:00,518 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 16:01:00,519 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:01:00,519 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:01:00,519 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:01:00,519 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:01:00,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:00,648 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 16:01:00,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 16:01:00,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:00,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 16:01:00,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:00,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:00,701 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 16:01:00,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 16:01:00,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:00,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 16:01:00,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:00,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:00,751 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 16:01:00,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 16:01:00,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:00,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 16:01:00,764 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 [2022-12-14 16:01:00,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:00,779 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 [2022-12-14 16:01:01,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:01:01,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:01:01,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,082 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 [2022-12-14 16:01:01,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,121 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 [2022-12-14 16:01:01,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 16:01:01,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 16:01:01,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,219 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 [2022-12-14 16:01:01,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,251 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 [2022-12-14 16:01:01,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,305 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 [2022-12-14 16:01:01,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 16:01:01,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 16:01:01,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,406 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 16:01:01,407 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 [2022-12-14 16:01:01,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,473 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 16:01:01,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 16:01:01,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:01:01,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:01:01,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,955 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 [2022-12-14 16:01:01,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:01,984 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 [2022-12-14 16:01:02,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,071 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 9897003 treesize of output 5376293 [2022-12-14 16:01:02,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,103 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 9897003 treesize of output 5376293 [2022-12-14 16:01:02,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 16:01:02,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 16:01:02,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 16:01:02,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,209 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 [2022-12-14 16:01:02,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 16:01:02,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,305 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 16:01:02,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 16:01:02,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:01:02,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-12-14 16:01:02,598 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-12-14 16:01:02,681 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 16:01:18,115 WARN L233 SmtUtils]: Spent 5.76s 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) [2022-12-14 16:01:28,096 WARN L233 SmtUtils]: Spent 5.87s 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) [2022-12-14 16:01:40,172 WARN L233 SmtUtils]: Spent 5.92s 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) [2022-12-14 16:01:52,940 WARN L233 SmtUtils]: Spent 6.59s 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) [2022-12-14 16:01:53,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1582249197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:01:53,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 16:01:53,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 16:01:53,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510163567] [2022-12-14 16:01:53,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:01:53,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 16:01:53,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:01:53,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 16:01:53,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-12-14 16:01:53,673 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) [2022-12-14 16:01:59,441 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] [2022-12-14 16:02:01,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:02:03,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:02:05,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:02:07,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:02:09,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:02:11,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:02:13,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:02:15,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:02:24,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 16:02:24,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:02:24,811 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-12-14 16:02:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 16:02:24,812 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 [2022-12-14 16:02:24,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:02:24,812 INFO L225 Difference]: With dead ends: 315 [2022-12-14 16:02:24,812 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 16:02:24,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 53.8s TimeCoverageRelationStatistics Valid=100, Invalid=196, Unknown=10, NotChecked=0, Total=306 [2022-12-14 16:02:24,813 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2022-12-14 16:02:24,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 378 Invalid, 9 Unknown, 0 Unchecked, 28.3s Time] [2022-12-14 16:02:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 16:02:24,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 16:02:24,828 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) [2022-12-14 16:02:24,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-12-14 16:02:24,829 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-12-14 16:02:24,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:02:24,829 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-12-14 16:02:24,829 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) [2022-12-14 16:02:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-12-14 16:02:24,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 16:02:24,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:02:24,831 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] [2022-12-14 16:02:24,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 16:02:25,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:02:25,032 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:02:25,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:02:25,032 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-12-14 16:02:25,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:02:25,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833310787] [2022-12-14 16:02:25,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:02:25,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:02:25,154 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:02:25,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414459952] [2022-12-14 16:02:25,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:02:25,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:02:25,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:02:25,155 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:02:25,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd8669f-8135-4222-9417-0b0f5c147327/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 16:02:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:02:26,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 16:02:26,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:02:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 16:02:26,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:02:26,161 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 16:02:26,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:02:26,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833310787] [2022-12-14 16:02:26,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 16:02:26,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414459952] [2022-12-14 16:02:26,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414459952] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 16:02:26,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2029158496] [2022-12-14 16:02:26,164 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 16:02:26,164 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 16:02:26,164 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 16:02:26,165 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 16:02:26,165 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 16:02:26,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,218 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 16:02:26,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 16:02:26,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 16:02:26,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 16:02:26,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,279 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 16:02:26,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 16:02:26,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,312 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 16:02:26,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 16:02:26,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 16:02:26,322 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 [2022-12-14 16:02:26,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,335 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 [2022-12-14 16:02:26,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:02:26,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,549 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 [2022-12-14 16:02:26,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,577 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 [2022-12-14 16:02:26,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 16:02:26,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 16:02:26,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,661 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 [2022-12-14 16:02:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,691 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 [2022-12-14 16:02:26,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 16:02:26,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 16:02:26,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,804 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 16:02:26,805 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 [2022-12-14 16:02:26,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,858 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 16:02:26,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 16:02:26,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:26,891 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 [2022-12-14 16:02:26,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 16:02:27,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 16:02:27,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 16:02:27,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 16:02:27,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 16:02:27,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-12-14 16:02:27,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 16:02:27,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 16:02:27,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 16:02:27,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 16:02:27,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,126 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 [2022-12-14 16:02:27,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 16:02:27,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 16:02:27,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:27,286 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 [2022-12-14 16:02:27,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 16:02:27,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 16:02:29,962 INFO L217 Elim1Store]: Index analysis took 2405 ms [2022-12-14 16:02:40,547 WARN L233 SmtUtils]: Spent 10.58s 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) [2022-12-14 16:02:40,547 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 16:02:40,548 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 [2022-12-14 16:02:41,589 INFO L217 Elim1Store]: Index analysis took 783 ms [2022-12-14 16:02:42,816 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 16:02:42,817 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 [2022-12-14 16:05:22,723 WARN L233 SmtUtils]: Spent 2.66m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 16:05:22,724 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-12-14 16:05:22,724 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 7904 treesize of output 5832 [2022-12-14 16:05:23,172 INFO L217 Elim1Store]: Index analysis took 256 ms [2022-12-14 16:06:56,991 WARN L233 SmtUtils]: Spent 1.56m 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) [2022-12-14 16:06:56,992 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 16:06:56,993 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 7135 treesize of output 5975 [2022-12-14 16:07:02,208 INFO L217 Elim1Store]: Index analysis took 3893 ms