./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7 --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 72a3b80a468e10df778a3b8ff41e4c2b1e0b82c1005f056b209a19315511b1a5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:09:24,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:09:24,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:09:24,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:09:24,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:09:24,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:09:24,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:09:24,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:09:24,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:09:24,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:09:24,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:09:24,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:09:24,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:09:24,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:09:24,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:09:24,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:09:24,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:09:24,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:09:24,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:09:24,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:09:24,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:09:24,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:09:24,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:09:24,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:09:24,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:09:24,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:09:24,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:09:24,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:09:24,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:09:24,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:09:24,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:09:24,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:09:24,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:09:24,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:09:24,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:09:24,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:09:24,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:09:24,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:09:24,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:09:24,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:09:24,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:09:24,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:09:24,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:09:24,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:09:24,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:09:24,502 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:09:24,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:09:24,503 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:09:24,503 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:09:24,504 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:09:24,504 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:09:24,504 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:09:24,504 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:09:24,505 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:09:24,505 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:09:24,505 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:09:24,506 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:09:24,506 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:09:24,506 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:09:24,506 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:09:24,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:09:24,508 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:09:24,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:09:24,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:09:24,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:09:24,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:09:24,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:09:24,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:09:24,510 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:09:24,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:09:24,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:09:24,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:09:24,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:09:24,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:09:24,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:09:24,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:09:24,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:09:24,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:09:24,513 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:09:24,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:09:24,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:09:24,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:09:24,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:09:24,514 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72a3b80a468e10df778a3b8ff41e4c2b1e0b82c1005f056b209a19315511b1a5 [2021-11-25 18:09:24,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:09:24,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:09:24,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:09:24,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:09:24,832 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:09:24,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i [2021-11-25 18:09:24,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/data/453951152/9048eaa6f3ea4bcc86192802f990df07/FLAG37fac3552 [2021-11-25 18:09:25,520 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:09:25,521 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i [2021-11-25 18:09:25,541 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/data/453951152/9048eaa6f3ea4bcc86192802f990df07/FLAG37fac3552 [2021-11-25 18:09:25,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/data/453951152/9048eaa6f3ea4bcc86192802f990df07 [2021-11-25 18:09:25,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:09:25,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:09:25,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:09:25,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:09:25,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:09:25,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:09:25" (1/1) ... [2021-11-25 18:09:25,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e85fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:25, skipping insertion in model container [2021-11-25 18:09:25,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:09:25" (1/1) ... [2021-11-25 18:09:25,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:09:25,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:09:26,338 WARN L230 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_b0c11890-dd32-4117-add6-0fa9ff7f7aed/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i[33021,33034] [2021-11-25 18:09:26,505 WARN L230 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_b0c11890-dd32-4117-add6-0fa9ff7f7aed/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i[44590,44603] [2021-11-25 18:09:26,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:09:26,548 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:09:26,606 WARN L230 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_b0c11890-dd32-4117-add6-0fa9ff7f7aed/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i[33021,33034] [2021-11-25 18:09:26,689 WARN L230 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_b0c11890-dd32-4117-add6-0fa9ff7f7aed/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-2.i[44590,44603] [2021-11-25 18:09:26,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:09:26,748 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:09:26,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26 WrapperNode [2021-11-25 18:09:26,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:09:26,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:09:26,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:09:26,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:09:26,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:26,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:26,906 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1181 [2021-11-25 18:09:26,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:09:26,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:09:26,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:09:26,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:09:26,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:26,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:26,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:26,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:27,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:27,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:27,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:27,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:09:27,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:09:27,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:09:27,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:09:27,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (1/1) ... [2021-11-25 18:09:27,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:09:27,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:09:27,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:09:27,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:09:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:09:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 18:09:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 18:09:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:09:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:09:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:09:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:09:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:09:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:09:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:09:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:09:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:09:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:09:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:09:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:09:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:09:27,368 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:09:27,370 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:09:28,788 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:09:29,348 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:09:29,349 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-25 18:09:29,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:09:29 BoogieIcfgContainer [2021-11-25 18:09:29,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:09:29,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:09:29,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:09:29,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:09:29,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:09:25" (1/3) ... [2021-11-25 18:09:29,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ad2c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:09:29, skipping insertion in model container [2021-11-25 18:09:29,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:26" (2/3) ... [2021-11-25 18:09:29,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ad2c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:09:29, skipping insertion in model container [2021-11-25 18:09:29,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:09:29" (3/3) ... [2021-11-25 18:09:29,368 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test3-2.i [2021-11-25 18:09:29,378 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:09:29,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:09:29,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:09:29,473 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:09:29,476 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:09:29,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:09:29,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 18:09:29,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:29,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:29,525 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:29,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:29,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2145808350, now seen corresponding path program 1 times [2021-11-25 18:09:29,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:29,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53937127] [2021-11-25 18:09:29,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:29,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:09:29,793 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:29,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53937127] [2021-11-25 18:09:29,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53937127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:29,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:29,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:09:29,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199331373] [2021-11-25 18:09:29,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:29,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:09:29,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:29,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:09:29,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:09:29,853 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:09:30,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:30,535 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2021-11-25 18:09:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:09:30,542 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 18:09:30,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:30,552 INFO L225 Difference]: With dead ends: 273 [2021-11-25 18:09:30,553 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 18:09:30,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:09:30,560 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:30,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 18:09:30,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 18:09:30,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 18:09:30,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:09:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 18:09:30,608 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 18:09:30,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:30,609 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 18:09:30,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:09:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 18:09:30,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 18:09:30,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:30,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:30,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:09:30,612 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:30,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:30,612 INFO L85 PathProgramCache]: Analyzing trace with hash 131240621, now seen corresponding path program 1 times [2021-11-25 18:09:30,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:30,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877181903] [2021-11-25 18:09:30,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:30,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:09:30,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:30,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877181903] [2021-11-25 18:09:30,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877181903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:30,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:30,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:09:30,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554653248] [2021-11-25 18:09:30,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:30,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:09:30,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:09:30,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:09:30,691 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:09:32,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:32,643 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 18:09:32,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:09:32,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 18:09:32,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:32,655 INFO L225 Difference]: With dead ends: 258 [2021-11-25 18:09:32,655 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 18:09:32,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:32,658 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:32,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-25 18:09:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 18:09:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 18:09:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:09:32,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 18:09:32,680 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 18:09:32,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:32,681 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 18:09:32,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:09:32,681 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 18:09:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 18:09:32,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:32,683 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:32,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:09:32,684 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:32,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:32,685 INFO L85 PathProgramCache]: Analyzing trace with hash 993801336, now seen corresponding path program 1 times [2021-11-25 18:09:32,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:32,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635173331] [2021-11-25 18:09:32,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:32,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:32,834 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:09:32,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854600801] [2021-11-25 18:09:32,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:32,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:09:32,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:09:32,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:09:32,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:09:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:33,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:09:33,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:09:33,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:09:33,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:09:33,877 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:33,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635173331] [2021-11-25 18:09:33,879 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:09:33,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854600801] [2021-11-25 18:09:33,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854600801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:33,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:33,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:09:33,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233051646] [2021-11-25 18:09:33,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:33,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:09:33,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:33,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:09:33,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:09:33,888 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:09:34,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:34,749 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 18:09:34,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:09:34,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 18:09:34,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:34,760 INFO L225 Difference]: With dead ends: 304 [2021-11-25 18:09:34,760 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 18:09:34,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:09:34,765 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:34,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 18:09:34,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 18:09:34,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 18:09:34,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:09:34,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 18:09:34,786 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 18:09:34,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:34,786 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 18:09:34,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:09:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 18:09:34,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 18:09:34,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:34,790 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:34,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:09:35,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:09:35,017 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:35,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:35,018 INFO L85 PathProgramCache]: Analyzing trace with hash 237821332, now seen corresponding path program 1 times [2021-11-25 18:09:35,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:35,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274429754] [2021-11-25 18:09:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:35,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:35,133 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:09:35,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196293036] [2021-11-25 18:09:35,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:35,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:09:35,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:09:35,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:09:35,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:09:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:35,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:09:35,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:09:35,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:09:35,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:09:35,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 18:09:35,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:09:35,820 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:35,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274429754] [2021-11-25 18:09:35,821 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:09:35,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196293036] [2021-11-25 18:09:35,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196293036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:35,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:35,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:09:35,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700101369] [2021-11-25 18:09:35,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:35,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:09:35,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:35,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:09:35,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:09:35,825 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:09:37,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:37,298 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 18:09:37,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:09:37,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 18:09:37,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:37,305 INFO L225 Difference]: With dead ends: 231 [2021-11-25 18:09:37,306 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 18:09:37,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:37,307 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:37,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 18:09:37,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 18:09:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 18:09:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:09:37,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 18:09:37,327 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 18:09:37,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:37,327 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 18:09:37,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:09:37,328 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 18:09:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 18:09:37,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:37,357 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:37,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:09:37,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-25 18:09:37,558 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:37,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash 375836451, now seen corresponding path program 1 times [2021-11-25 18:09:37,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:37,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592269382] [2021-11-25 18:09:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:37,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:37,635 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:09:37,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292425891] [2021-11-25 18:09:37,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:37,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:09:37,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:09:37,641 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:09:37,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:09:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:38,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:09:38,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:09:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:09:38,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:09:38,384 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:38,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592269382] [2021-11-25 18:09:38,384 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:09:38,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292425891] [2021-11-25 18:09:38,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292425891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:38,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:38,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:09:38,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591781630] [2021-11-25 18:09:38,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:38,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:09:38,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:38,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:09:38,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:09:38,389 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:09:39,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:39,231 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 18:09:39,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:09:39,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-25 18:09:39,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:39,235 INFO L225 Difference]: With dead ends: 395 [2021-11-25 18:09:39,235 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 18:09:39,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:39,238 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:39,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 18:09:39,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 18:09:39,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 18:09:39,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:09:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 18:09:39,264 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 18:09:39,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:39,265 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 18:09:39,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:09:39,265 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 18:09:39,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 18:09:39,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:39,268 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:39,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-25 18:09:39,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:09:39,493 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:39,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1459918940, now seen corresponding path program 1 times [2021-11-25 18:09:39,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:39,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745226899] [2021-11-25 18:09:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:39,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:39,569 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:09:39,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [548029446] [2021-11-25 18:09:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:39,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:09:39,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:09:39,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:09:39,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:09:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:42,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:09:42,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:09:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:09:42,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:09:42,868 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:42,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745226899] [2021-11-25 18:09:42,868 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:09:42,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548029446] [2021-11-25 18:09:42,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548029446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:09:42,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:09:42,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:09:42,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891550079] [2021-11-25 18:09:42,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:09:42,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:09:42,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:09:42,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:09:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:09:42,871 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:09:43,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:09:43,681 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 18:09:43,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:09:43,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-11-25 18:09:43,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:09:43,689 INFO L225 Difference]: With dead ends: 411 [2021-11-25 18:09:43,689 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 18:09:43,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:09:43,691 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:09:43,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 18:09:43,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 18:09:43,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 18:09:43,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 18:09:43,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 18:09:43,710 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 18:09:43,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:09:43,710 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 18:09:43,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:09:43,719 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 18:09:43,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 18:09:43,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:09:43,722 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:09:43,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-25 18:09:43,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:09:43,937 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:09:43,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:09:43,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1243076896, now seen corresponding path program 1 times [2021-11-25 18:09:43,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:09:43,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392688328] [2021-11-25 18:09:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:43,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:09:43,996 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:09:43,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67822185] [2021-11-25 18:09:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:09:43,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:09:43,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:09:43,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:09:44,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0c11890-dd32-4117-add6-0fa9ff7f7aed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:09:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:09:45,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:09:45,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:09:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:09:45,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:09:45,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:09:45,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:09:45,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392688328] [2021-11-25 18:09:45,680 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:09:45,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67822185] [2021-11-25 18:09:45,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67822185] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:09:45,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [668912745] [2021-11-25 18:09:45,706 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 18:09:45,706 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:09:45,711 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:09:45,718 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:09:45,718 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:09:45,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:45,874 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 18:09:45,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-25 18:09:45,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:45,909 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 18:09:45,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:45,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:45,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:09:45,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:09:45,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:09:46,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,033 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:09:46,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-25 18:09:46,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,119 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 18:09:46,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,192 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:09:46,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 18:09:46,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-25 18:09:46,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 18:09:46,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 18:09:46,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:09:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,958 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 18:09:46,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:46,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:46,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:47,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:09:47,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:09:47,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:09:47,149 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 18:09:47,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 60 [2021-11-25 18:09:47,178 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:09:47,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2021-11-25 18:09:47,204 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:09:47,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2021-11-25 18:09:47,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:47,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:47,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:47,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:09:47,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:47,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:47,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:09:47,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:47,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:09:47,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:09:54,219 WARN L227 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:09:54,220 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 18:09:54,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 18:09:54,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:02,645 WARN L227 SmtUtils]: Spent 8.31s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:10:02,646 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:10:02,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 18:10:03,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:03,222 INFO L244 Elim1Store]: Index analysis took 363 ms [2021-11-25 18:10:12,394 WARN L227 SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 245 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:10:12,395 INFO L354 Elim1Store]: treesize reduction 2494, result has 31.7 percent of original size [2021-11-25 18:10:12,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 1373 [2021-11-25 18:10:12,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:13,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:13,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:13,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:13,072 INFO L244 Elim1Store]: Index analysis took 206 ms [2021-11-25 18:10:13,926 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 18:10:13,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 73 [2021-11-25 18:10:14,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:14,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:14,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:14,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:14,283 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-11-25 18:10:14,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 18:10:14,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:14,904 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 18:10:14,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 46 treesize of output 30 [2021-11-25 18:10:15,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:15,259 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:10:15,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 18:10:15,463 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:15,523 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:15,617 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:15,684 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:15,809 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:15,865 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:15,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:15,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:15,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:15,999 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:16,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:16,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:16,069 INFO L244 Elim1Store]: Index analysis took 111 ms [2021-11-25 18:10:16,201 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:10:16,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3084 treesize of output 2866 [2021-11-25 18:10:16,404 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:16,619 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:16,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:16,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:16,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:16,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:16,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:16,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:16,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:16,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:16,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 18:10:17,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:17,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:17,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:17,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:17,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:17,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:17,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:17,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:17,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:17,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:17,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:17,174 INFO L244 Elim1Store]: Index analysis took 124 ms [2021-11-25 18:10:17,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3105 treesize of output 2651 [2021-11-25 18:10:17,586 INFO L244 Elim1Store]: Index analysis took 237 ms [2021-11-25 18:10:20,123 INFO L354 Elim1Store]: treesize reduction 468, result has 74.7 percent of original size [2021-11-25 18:10:20,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3105 treesize of output 4035 [2021-11-25 18:10:22,064 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:22,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:22,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:22,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,289 INFO L244 Elim1Store]: Index analysis took 142 ms [2021-11-25 18:10:22,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 18:10:22,525 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:22,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:22,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:22,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:22,719 INFO L244 Elim1Store]: Index analysis took 108 ms [2021-11-25 18:10:23,026 INFO L354 Elim1Store]: treesize reduction 6, result has 91.3 percent of original size [2021-11-25 18:10:23,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3096 treesize of output 2710 [2021-11-25 18:10:23,947 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:24,011 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:24,117 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:24,173 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:24,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:24,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:24,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:24,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:24,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3075 treesize of output 2645 [2021-11-25 18:10:24,423 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:24,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:24,563 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:10:24,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:24,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:24,651 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-25 18:10:25,073 INFO L354 Elim1Store]: treesize reduction 793, result has 31.2 percent of original size [2021-11-25 18:10:25,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3084 treesize of output 3008 [2021-11-25 18:10:25,305 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:26,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:26,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-25 18:10:26,458 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:26,511 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:26,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:26,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-25 18:10:26,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:26,901 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 18:10:26,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-25 18:10:27,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:27,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:27,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:27,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-11-25 18:10:27,083 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:29,326 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:29,703 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:29,775 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:29,802 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:29,883 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:29,974 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:10:33,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:10:33,059 INFO L190 IndexEqualityManager]: detected not equals via solver