./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:20:34,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:20:34,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:20:34,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:20:34,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:20:34,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:20:34,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:20:34,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:20:34,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:20:34,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:20:34,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:20:34,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:20:34,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:20:34,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:20:34,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:20:34,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:20:34,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:20:34,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:20:34,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:20:34,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:20:34,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:20:34,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:20:34,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:20:34,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:20:34,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:20:34,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:20:34,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:20:34,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:20:34,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:20:34,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:20:34,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:20:34,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:20:34,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:20:34,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:20:34,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:20:34,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:20:34,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:20:34,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:20:34,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:20:34,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:20:34,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:20:34,372 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:20:34,404 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:20:34,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:20:34,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:20:34,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:20:34,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:20:34,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:20:34,406 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:20:34,406 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:20:34,407 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:20:34,407 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:20:34,407 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:20:34,407 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:20:34,408 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:20:34,408 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:20:34,408 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:20:34,408 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:20:34,409 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:20:34,409 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:20:34,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:20:34,410 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:20:34,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:20:34,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:20:34,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:20:34,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:20:34,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:20:34,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:20:34,412 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:20:34,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:20:34,412 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:20:34,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:20:34,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:20:34,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:20:34,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:20:34,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:20:34,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:20:34,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:20:34,414 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:20:34,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:20:34,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:20:34,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:20:34,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:20:34,421 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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2021-11-25 19:20:34,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:20:34,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:20:34,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:20:34,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:20:34,763 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:20:34,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2021-11-25 19:20:34,835 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/data/e661ff2b2/22beaaf932cf4f14926476ef2f6c6b88/FLAG3705275cf [2021-11-25 19:20:35,509 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:20:35,509 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2021-11-25 19:20:35,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/data/e661ff2b2/22beaaf932cf4f14926476ef2f6c6b88/FLAG3705275cf [2021-11-25 19:20:35,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/data/e661ff2b2/22beaaf932cf4f14926476ef2f6c6b88 [2021-11-25 19:20:35,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:20:35,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:20:35,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:20:35,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:20:35,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:20:35,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:20:35" (1/1) ... [2021-11-25 19:20:35,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0f46ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:35, skipping insertion in model container [2021-11-25 19:20:35,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:20:35" (1/1) ... [2021-11-25 19:20:35,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:20:35,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:20:36,511 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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44118,44131] [2021-11-25 19:20:36,526 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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44660,44673] [2021-11-25 19:20:36,717 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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56247,56260] [2021-11-25 19:20:36,720 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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56368,56381] [2021-11-25 19:20:36,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:20:36,767 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:20:36,800 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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44118,44131] [2021-11-25 19:20:36,802 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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44660,44673] [2021-11-25 19:20:36,878 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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56247,56260] [2021-11-25 19:20:36,879 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_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56368,56381] [2021-11-25 19:20:36,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:20:37,011 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:20:37,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37 WrapperNode [2021-11-25 19:20:37,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:20:37,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:20:37,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:20:37,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:20:37,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,221 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1199 [2021-11-25 19:20:37,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:20:37,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:20:37,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:20:37,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:20:37,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:20:37,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:20:37,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:20:37,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:20:37,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (1/1) ... [2021-11-25 19:20:37,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:20:37,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:20:37,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:20:37,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:20:37,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:20:37,469 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 19:20:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:20:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:20:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-25 19:20:37,470 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-25 19:20:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:20:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:20:37,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:20:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:20:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:20:37,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:20:37,471 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-25 19:20:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-25 19:20:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:20:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-25 19:20:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-25 19:20:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:20:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:20:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:20:37,764 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:20:37,766 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:20:38,864 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:20:39,388 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:20:39,388 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-25 19:20:39,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:20:39 BoogieIcfgContainer [2021-11-25 19:20:39,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:20:39,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:20:39,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:20:39,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:20:39,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:20:35" (1/3) ... [2021-11-25 19:20:39,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3754ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:20:39, skipping insertion in model container [2021-11-25 19:20:39,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:20:37" (2/3) ... [2021-11-25 19:20:39,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3754ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:20:39, skipping insertion in model container [2021-11-25 19:20:39,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:20:39" (3/3) ... [2021-11-25 19:20:39,408 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2021-11-25 19:20:39,416 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:20:39,416 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-25 19:20:39,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:20:39,496 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 19:20:39,497 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-25 19:20:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 19:20:39,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 19:20:39,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:20:39,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:20:39,527 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:20:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:20:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash -435450484, now seen corresponding path program 1 times [2021-11-25 19:20:39,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:20:39,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141617658] [2021-11-25 19:20:39,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:39,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:20:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:20:39,718 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 19:20:39,719 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:20:39,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141617658] [2021-11-25 19:20:39,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141617658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:20:39,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:20:39,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:20:39,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729290894] [2021-11-25 19:20:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:20:39,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:20:39,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:20:39,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:20:39,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:20:39,761 INFO L87 Difference]: Start difference. First operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 19:20:40,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:20:40,434 INFO L93 Difference]: Finished difference Result 317 states and 538 transitions. [2021-11-25 19:20:40,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:20:40,443 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-25 19:20:40,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:20:40,460 INFO L225 Difference]: With dead ends: 317 [2021-11-25 19:20:40,461 INFO L226 Difference]: Without dead ends: 157 [2021-11-25 19:20:40,468 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 19:20:40,472 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:20:40,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 19:20:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-25 19:20:40,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2021-11-25 19:20:40,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 134 states have (on average 1.1791044776119404) internal successors, (158), 138 states have internal predecessors, (158), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-25 19:20:40,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2021-11-25 19:20:40,572 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 7 [2021-11-25 19:20:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:20:40,573 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2021-11-25 19:20:40,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 19:20:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2021-11-25 19:20:40,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:20:40,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:20:40,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:20:40,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:20:40,575 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:20:40,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:20:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1156235943, now seen corresponding path program 1 times [2021-11-25 19:20:40,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:20:40,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158005991] [2021-11-25 19:20:40,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:40,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:20:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:20:40,673 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 19:20:40,674 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:20:40,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158005991] [2021-11-25 19:20:40,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158005991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:20:40,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:20:40,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:20:40,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754599059] [2021-11-25 19:20:40,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:20:40,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:20:40,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:20:40,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:20:40,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:20:40,685 INFO L87 Difference]: Start difference. First operand 157 states and 188 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 19:20:42,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:20:42,785 INFO L93 Difference]: Finished difference Result 324 states and 391 transitions. [2021-11-25 19:20:42,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:20:42,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-25 19:20:42,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:20:42,789 INFO L225 Difference]: With dead ends: 324 [2021-11-25 19:20:42,789 INFO L226 Difference]: Without dead ends: 232 [2021-11-25 19:20:42,791 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 19:20:42,792 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 74 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:20:42,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 444 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 19:20:42,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-25 19:20:42,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 159. [2021-11-25 19:20:42,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.1764705882352942) internal successors, (160), 140 states have internal predecessors, (160), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-25 19:20:42,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 190 transitions. [2021-11-25 19:20:42,813 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 190 transitions. Word has length 9 [2021-11-25 19:20:42,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:20:42,814 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 190 transitions. [2021-11-25 19:20:42,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 19:20:42,814 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 190 transitions. [2021-11-25 19:20:42,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 19:20:42,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:20:42,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:20:42,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:20:42,816 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:20:42,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:20:42,817 INFO L85 PathProgramCache]: Analyzing trace with hash 618014543, now seen corresponding path program 1 times [2021-11-25 19:20:42,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:20:42,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247309486] [2021-11-25 19:20:42,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:42,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:20:42,857 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:20:42,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226000945] [2021-11-25 19:20:42,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:42,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:20:42,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:20:42,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:20:42,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:20:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:20:43,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 19:20:43,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:20:43,575 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 19:20:43,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:20:43,576 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:20:43,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247309486] [2021-11-25 19:20:43,576 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:20:43,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226000945] [2021-11-25 19:20:43,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226000945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:20:43,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:20:43,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:20:43,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556892343] [2021-11-25 19:20:43,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:20:43,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:20:43,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:20:43,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:20:43,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:20:43,580 INFO L87 Difference]: Start difference. First operand 159 states and 190 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:20:45,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:20:45,414 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2021-11-25 19:20:45,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:20:45,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-25 19:20:45,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:20:45,417 INFO L225 Difference]: With dead ends: 170 [2021-11-25 19:20:45,417 INFO L226 Difference]: Without dead ends: 168 [2021-11-25 19:20:45,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:20:45,418 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 11 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:20:45,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 778 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 19:20:45,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-25 19:20:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-25 19:20:45,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 142 states have (on average 1.176056338028169) internal successors, (167), 147 states have internal predecessors, (167), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 19:20:45,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2021-11-25 19:20:45,435 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 20 [2021-11-25 19:20:45,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:20:45,436 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2021-11-25 19:20:45,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:20:45,436 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2021-11-25 19:20:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 19:20:45,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:20:45,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:20:45,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:20:45,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:20:45,651 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:20:45,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:20:45,652 INFO L85 PathProgramCache]: Analyzing trace with hash -746982808, now seen corresponding path program 1 times [2021-11-25 19:20:45,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:20:45,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259625774] [2021-11-25 19:20:45,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:45,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:20:45,807 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:20:45,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843857053] [2021-11-25 19:20:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:45,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:20:45,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:20:45,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:20:45,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:20:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:20:46,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1641 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:20:46,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:20:46,679 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 19:20:46,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:20:46,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:20:46,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259625774] [2021-11-25 19:20:46,680 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:20:46,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843857053] [2021-11-25 19:20:46,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843857053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:20:46,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:20:46,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:20:46,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925724603] [2021-11-25 19:20:46,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:20:46,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:20:46,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:20:46,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:20:46,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:20:46,683 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:20:47,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:20:47,555 INFO L93 Difference]: Finished difference Result 408 states and 486 transitions. [2021-11-25 19:20:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:20:47,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-25 19:20:47,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:20:47,558 INFO L225 Difference]: With dead ends: 408 [2021-11-25 19:20:47,559 INFO L226 Difference]: Without dead ends: 243 [2021-11-25 19:20:47,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 19:20:47,561 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 68 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:20:47,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 310 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 19:20:47,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-25 19:20:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 211. [2021-11-25 19:20:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 185 states have (on average 1.1675675675675676) internal successors, (216), 190 states have internal predecessors, (216), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 19:20:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 248 transitions. [2021-11-25 19:20:47,580 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 248 transitions. Word has length 28 [2021-11-25 19:20:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:20:47,581 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 248 transitions. [2021-11-25 19:20:47,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:20:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 248 transitions. [2021-11-25 19:20:47,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 19:20:47,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:20:47,583 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] [2021-11-25 19:20:47,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:20:47,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:20:47,803 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:20:47,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:20:47,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1769840484, now seen corresponding path program 1 times [2021-11-25 19:20:47,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:20:47,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887102888] [2021-11-25 19:20:47,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:47,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:20:47,880 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:20:47,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1723428454] [2021-11-25 19:20:47,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:47,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:20:47,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:20:47,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:20:47,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:20:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:20:48,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 19:20:48,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:20:48,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:20:48,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:20:48,628 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 19:20:48,629 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:20:48,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887102888] [2021-11-25 19:20:48,629 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:20:48,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723428454] [2021-11-25 19:20:48,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723428454] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 19:20:48,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 19:20:48,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2021-11-25 19:20:48,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852447749] [2021-11-25 19:20:48,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:20:48,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:20:48,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:20:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:20:48,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:20:48,631 INFO L87 Difference]: Start difference. First operand 211 states and 248 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 19:20:49,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:20:49,978 INFO L93 Difference]: Finished difference Result 801 states and 954 transitions. [2021-11-25 19:20:49,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:20:49,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2021-11-25 19:20:49,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:20:49,986 INFO L225 Difference]: With dead ends: 801 [2021-11-25 19:20:49,986 INFO L226 Difference]: Without dead ends: 606 [2021-11-25 19:20:49,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:20:49,989 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 961 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:20:49,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [961 Valid, 493 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 19:20:49,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-25 19:20:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 356. [2021-11-25 19:20:50,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 320 states have (on average 1.175) internal successors, (376), 326 states have internal predecessors, (376), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2021-11-25 19:20:50,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 421 transitions. [2021-11-25 19:20:50,022 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 421 transitions. Word has length 32 [2021-11-25 19:20:50,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:20:50,023 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 421 transitions. [2021-11-25 19:20:50,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 19:20:50,023 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 421 transitions. [2021-11-25 19:20:50,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 19:20:50,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:20:50,027 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-11-25 19:20:50,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:20:50,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:20:50,243 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:20:50,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:20:50,244 INFO L85 PathProgramCache]: Analyzing trace with hash -498476679, now seen corresponding path program 1 times [2021-11-25 19:20:50,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:20:50,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164935355] [2021-11-25 19:20:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:50,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:20:50,334 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:20:50,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64021857] [2021-11-25 19:20:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:50,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:20:50,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:20:50,346 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:20:50,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 19:20:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:20:50,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 19:20:50,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:20:51,038 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 19:20:51,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:20:51,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:20:51,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164935355] [2021-11-25 19:20:51,040 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:20:51,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64021857] [2021-11-25 19:20:51,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64021857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:20:51,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:20:51,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:20:51,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21298797] [2021-11-25 19:20:51,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:20:51,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:20:51,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:20:51,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:20:51,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:20:51,043 INFO L87 Difference]: Start difference. First operand 356 states and 421 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 19:20:54,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:20:54,647 INFO L93 Difference]: Finished difference Result 680 states and 806 transitions. [2021-11-25 19:20:54,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:20:54,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2021-11-25 19:20:54,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:20:54,651 INFO L225 Difference]: With dead ends: 680 [2021-11-25 19:20:54,651 INFO L226 Difference]: Without dead ends: 356 [2021-11-25 19:20:54,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:20:54,653 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 17 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:20:54,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 670 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-25 19:20:54,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-25 19:20:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2021-11-25 19:20:54,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 320 states have (on average 1.175) internal successors, (376), 326 states have internal predecessors, (376), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 19:20:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 420 transitions. [2021-11-25 19:20:54,693 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 420 transitions. Word has length 57 [2021-11-25 19:20:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:20:54,694 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 420 transitions. [2021-11-25 19:20:54,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 19:20:54,695 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 420 transitions. [2021-11-25 19:20:54,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 19:20:54,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:20:54,709 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-25 19:20:54,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-25 19:20:54,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 19:20:54,919 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:20:54,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:20:54,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1204393698, now seen corresponding path program 1 times [2021-11-25 19:20:54,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:20:54,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44236217] [2021-11-25 19:20:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:54,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:20:54,969 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:20:54,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [632333277] [2021-11-25 19:20:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:54,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:20:54,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:20:54,971 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:20:55,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 19:20:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:20:55,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:20:55,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:20:55,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 19:20:55,661 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 19:20:55,677 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:20:55,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:20:55,678 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:20:55,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44236217] [2021-11-25 19:20:55,678 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:20:55,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632333277] [2021-11-25 19:20:55,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632333277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:20:55,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:20:55,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:20:55,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305611160] [2021-11-25 19:20:55,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:20:55,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:20:55,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:20:55,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:20:55,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:20:55,682 INFO L87 Difference]: Start difference. First operand 356 states and 420 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-25 19:20:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:20:57,331 INFO L93 Difference]: Finished difference Result 513 states and 615 transitions. [2021-11-25 19:20:57,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:20:57,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2021-11-25 19:20:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:20:57,339 INFO L225 Difference]: With dead ends: 513 [2021-11-25 19:20:57,339 INFO L226 Difference]: Without dead ends: 446 [2021-11-25 19:20:57,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 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 19:20:57,340 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 48 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:20:57,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 438 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 19:20:57,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-11-25 19:20:57,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 360. [2021-11-25 19:20:57,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 330 states have internal predecessors, (380), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 19:20:57,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2021-11-25 19:20:57,364 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 62 [2021-11-25 19:20:57,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:20:57,365 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2021-11-25 19:20:57,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-25 19:20:57,365 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2021-11-25 19:20:57,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-25 19:20:57,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:20:57,367 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-25 19:20:57,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-25 19:20:57,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-25 19:20:57,583 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:20:57,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:20:57,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1031523685, now seen corresponding path program 1 times [2021-11-25 19:20:57,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:20:57,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144966820] [2021-11-25 19:20:57,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:57,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:20:57,641 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:20:57,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482823492] [2021-11-25 19:20:57,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:57,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:20:57,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:20:57,644 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:20:57,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 19:20:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:20:58,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-25 19:20:58,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:20:58,491 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 19:20:58,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:20:58,492 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:20:58,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144966820] [2021-11-25 19:20:58,492 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:20:58,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482823492] [2021-11-25 19:20:58,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482823492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:20:58,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:20:58,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 19:20:58,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692476749] [2021-11-25 19:20:58,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:20:58,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:20:58,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:20:58,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:20:58,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:20:58,494 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-25 19:21:01,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:21:03,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:21:03,903 INFO L93 Difference]: Finished difference Result 692 states and 821 transitions. [2021-11-25 19:21:03,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 19:21:03,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2021-11-25 19:21:03,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:21:03,912 INFO L225 Difference]: With dead ends: 692 [2021-11-25 19:21:03,912 INFO L226 Difference]: Without dead ends: 363 [2021-11-25 19:21:03,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-25 19:21:03,914 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 14 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:21:03,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1008 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2021-11-25 19:21:03,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2021-11-25 19:21:03,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2021-11-25 19:21:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 326 states have (on average 1.1748466257668713) internal successors, (383), 333 states have internal predecessors, (383), 22 states have call successors, (22), 10 states have call predecessors, (22), 11 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2021-11-25 19:21:03,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2021-11-25 19:21:03,937 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 69 [2021-11-25 19:21:03,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:21:03,938 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2021-11-25 19:21:03,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-25 19:21:03,938 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2021-11-25 19:21:03,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-25 19:21:03,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:21:03,940 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-25 19:21:03,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 19:21:04,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:04,167 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:21:04,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:21:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1542696511, now seen corresponding path program 1 times [2021-11-25 19:21:04,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:21:04,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531407710] [2021-11-25 19:21:04,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:04,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:21:04,222 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:21:04,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208596176] [2021-11-25 19:21:04,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:04,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:04,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:21:04,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:21:04,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba11baf0-4b9a-4a79-bac0-dda81fc83b7e/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 19:21:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:21:09,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-25 19:21:09,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:21:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 19:21:09,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:21:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-25 19:21:10,065 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:21:10,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531407710] [2021-11-25 19:21:10,065 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:21:10,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208596176] [2021-11-25 19:21:10,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208596176] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:21:10,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [296925723] [2021-11-25 19:21:10,087 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2021-11-25 19:21:10,088 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:21:10,092 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:21:10,098 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:21:10,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:21:10,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:21:10,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:21:10,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,244 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 19:21:10,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 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 19:21:10,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:10,291 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-25 19:21:10,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-25 19:21:10,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-11-25 19:21:10,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2021-11-25 19:21:10,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2021-11-25 19:21:10,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-25 19:21:10,444 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:10,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,505 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 19:21:10,506 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 19:21:10,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,625 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 19:21:10,625 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 37 treesize of output 61 [2021-11-25 19:21:10,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 19:21:10,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 19:21:10,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 98 [2021-11-25 19:21:10,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:10,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2021-11-25 19:21:10,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:10,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 19:21:11,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 19:21:11,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 19:21:11,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 118 [2021-11-25 19:21:11,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 124 [2021-11-25 19:21:11,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2021-11-25 19:21:11,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,467 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 0 case distinctions, treesize of input 44 treesize of output 58 [2021-11-25 19:21:11,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 19:21:11,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 127 [2021-11-25 19:21:11,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 125 [2021-11-25 19:21:11,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2021-11-25 19:21:11,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 61 [2021-11-25 19:21:11,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:11,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 19:21:11,929 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 19:21:11,937 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 25 treesize of output 1 [2021-11-25 19:21:11,941 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 25 treesize of output 1 [2021-11-25 19:21:11,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 19:21:11,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 19:21:12,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 19:21:12,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,080 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 28 treesize of output 10 [2021-11-25 19:21:12,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,095 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 28 treesize of output 10 [2021-11-25 19:21:12,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,125 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 96 [2021-11-25 19:21:12,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2021-11-25 19:21:12,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 35 treesize of output 21 [2021-11-25 19:21:12,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2021-11-25 19:21:12,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 19:21:12,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,497 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 28 treesize of output 10 [2021-11-25 19:21:12,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 19:21:12,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,544 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 96 [2021-11-25 19:21:12,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2021-11-25 19:21:12,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 35 treesize of output 21 [2021-11-25 19:21:12,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2021-11-25 19:21:12,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,634 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 28 treesize of output 10 [2021-11-25 19:21:12,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 19:21:12,731 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 19:21:12,739 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 19 treesize of output 1 [2021-11-25 19:21:12,750 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 19:21:12,810 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 19:21:12,818 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 19:21:12,824 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 19:21:12,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 110 [2021-11-25 19:21:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 112 [2021-11-25 19:21:12,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:12,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 110 [2021-11-25 19:21:12,899 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 19:21:12,905 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 19:21:12,911 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 19:21:12,950 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 19 treesize of output 7 [2021-11-25 19:21:12,972 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 20 treesize of output 8 [2021-11-25 19:21:13,032 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 19 treesize of output 7 [2021-11-25 19:21:13,042 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 20 treesize of output 8 [2021-11-25 19:21:14,455 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 19:21:14,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1330 treesize of output 951 [2021-11-25 19:21:14,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:16,301 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 19:21:16,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1387 treesize of output 1153 [2021-11-25 19:21:16,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:17,942 INFO L354 Elim1Store]: treesize reduction 1112, result has 36.6 percent of original size [2021-11-25 19:21:17,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 758 treesize of output 805 [2021-11-25 19:21:18,182 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:18,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:18,255 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:21:18,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 19:21:18,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:18,401 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:21:18,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 19:21:18,456 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:18,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:18,488 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 27 treesize of output 15 [2021-11-25 19:21:18,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:18,557 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 19:21:18,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 20 [2021-11-25 19:21:18,590 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:18,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:18,650 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 23 treesize of output 13 [2021-11-25 19:21:18,676 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:18,699 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:18,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:18,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:18,943 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-25 19:21:18,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 83 [2021-11-25 19:21:19,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,029 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:19,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2021-11-25 19:21:19,064 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:19,577 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:19,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:19,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,628 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 251 treesize of output 141 [2021-11-25 19:21:19,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:19,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,687 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 541 treesize of output 437 [2021-11-25 19:21:19,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:19,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:19,792 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 549 treesize of output 451 [2021-11-25 19:21:19,945 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:19,968 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:20,003 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:20,257 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:20,277 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:20,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:20,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,322 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 239 treesize of output 141 [2021-11-25 19:21:20,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,383 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 529 treesize of output 437 [2021-11-25 19:21:20,494 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:20,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,510 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 537 treesize of output 451 [2021-11-25 19:21:20,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:20,923 INFO L354 Elim1Store]: treesize reduction 135, result has 57.9 percent of original size [2021-11-25 19:21:20,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 558 treesize of output 639 [2021-11-25 19:21:21,179 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:21,209 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:21,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:21,542 INFO L354 Elim1Store]: treesize reduction 133, result has 60.1 percent of original size [2021-11-25 19:21:21,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 260 treesize of output 343 [2021-11-25 19:21:21,619 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:21,650 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:21,676 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:21,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:21,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:21,805 INFO L354 Elim1Store]: treesize reduction 288, result has 0.3 percent of original size [2021-11-25 19:21:21,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 550 treesize of output 1 [2021-11-25 19:21:22,298 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:22,323 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:22,350 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:22,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:22,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:22,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:22,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:22,435 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 251 treesize of output 141 [2021-11-25 19:21:22,469 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:22,507 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:22,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:22,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:22,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:22,575 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 541 treesize of output 437 [2021-11-25 19:21:22,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:22,689 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:21:22,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:22,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:22,701 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 549 treesize of output 451 [2021-11-25 19:21:22,885 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:22,919 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:22,948 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:22,986 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:23,033 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:21:23,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:23,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:23,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:23,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:24,322 INFO L354 Elim1Store]: treesize reduction 400, result has 54.5 percent of original size [2021-11-25 19:21:24,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 11394 treesize of output 11456 [2021-11-25 19:24:48,468 WARN L227 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 2434 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 19:29:32,538 WARN L227 SmtUtils]: Spent 19.27s on a formula simplification. DAG size of input: 3060 DAG size of output: 3041 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)