./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/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 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:00:11,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:00:11,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:00:11,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:00:11,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:00:11,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:00:11,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:00:12,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:00:12,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:00:12,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:00:12,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:00:12,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:00:12,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:00:12,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:00:12,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:00:12,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:00:12,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:00:12,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:00:12,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:00:12,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:00:12,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:00:12,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:00:12,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:00:12,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:00:12,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:00:12,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:00:12,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:00:12,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:00:12,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:00:12,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:00:12,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:00:12,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:00:12,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:00:12,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:00:12,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:00:12,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:00:12,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:00:12,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:00:12,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:00:12,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:00:12,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:00:12,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 20:00:12,108 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:00:12,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:00:12,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:00:12,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:00:12,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:00:12,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:00:12,117 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:00:12,117 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:00:12,117 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:00:12,117 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:00:12,119 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:00:12,119 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:00:12,119 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:00:12,119 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:00:12,119 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:00:12,120 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:00:12,120 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:00:12,120 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:00:12,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:00:12,121 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:00:12,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:00:12,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:00:12,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:00:12,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:00:12,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:00:12,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:00:12,122 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:00:12,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:00:12,123 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:00:12,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:00:12,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:00:12,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:00:12,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:00:12,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:00:12,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:00:12,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:00:12,124 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:00:12,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:00:12,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:00:12,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:00:12,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:00:12,125 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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2021-11-25 20:00:12,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:00:12,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:00:12,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:00:12,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:00:12,461 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:00:12,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-25 20:00:12,527 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/data/31c2698d4/8c275864ca304033825551217e77e13b/FLAG7842e1a67 [2021-11-25 20:00:13,154 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:00:13,155 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-25 20:00:13,184 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/data/31c2698d4/8c275864ca304033825551217e77e13b/FLAG7842e1a67 [2021-11-25 20:00:13,327 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/data/31c2698d4/8c275864ca304033825551217e77e13b [2021-11-25 20:00:13,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:00:13,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:00:13,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:00:13,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:00:13,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:00:13,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:00:13" (1/1) ... [2021-11-25 20:00:13,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebf89e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:13, skipping insertion in model container [2021-11-25 20:00:13,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:00:13" (1/1) ... [2021-11-25 20:00:13,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:00:13,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:00:13,927 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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-25 20:00:13,938 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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-25 20:00:14,045 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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-25 20:00:14,046 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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-25 20:00:14,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:00:14,079 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:00:14,115 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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-25 20:00:14,133 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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-25 20:00:14,216 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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-25 20:00:14,217 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_c97ee5fe-37c0-43a5-9468-a46c027db5f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-25 20:00:14,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:00:14,292 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:00:14,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14 WrapperNode [2021-11-25 20:00:14,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:00:14,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:00:14,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:00:14,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:00:14,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,432 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1199 [2021-11-25 20:00:14,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:00:14,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:00:14,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:00:14,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:00:14,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:00:14,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:00:14,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:00:14,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:00:14,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (1/1) ... [2021-11-25 20:00:14,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:00:14,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:00:14,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:00:14,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:00:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:00:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 20:00:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:00:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:00:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-25 20:00:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-25 20:00:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:00:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:00:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-25 20:00:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-25 20:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-25 20:00:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-25 20:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:00:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:00:15,043 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:00:15,045 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:00:16,046 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:00:16,477 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:00:16,477 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-25 20:00:16,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:00:16 BoogieIcfgContainer [2021-11-25 20:00:16,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:00:16,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:00:16,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:00:16,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:00:16,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:00:13" (1/3) ... [2021-11-25 20:00:16,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dadf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:00:16, skipping insertion in model container [2021-11-25 20:00:16,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:00:14" (2/3) ... [2021-11-25 20:00:16,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28dadf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:00:16, skipping insertion in model container [2021-11-25 20:00:16,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:00:16" (3/3) ... [2021-11-25 20:00:16,491 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2021-11-25 20:00:16,497 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:00:16,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-25 20:00:16,557 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:00:16,576 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 20:00:16,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-25 20:00:16,604 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 20:00:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:00:16,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:16,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:00:16,609 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 20:00:16,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:16,613 INFO L85 PathProgramCache]: Analyzing trace with hash -435450484, now seen corresponding path program 1 times [2021-11-25 20:00:16,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:16,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521834147] [2021-11-25 20:00:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:16,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:16,805 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 20:00:16,806 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:16,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521834147] [2021-11-25 20:00:16,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521834147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:00:16,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:00:16,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:00:16,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74664563] [2021-11-25 20:00:16,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:00:16,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 20:00:16,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:00:16,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 20:00:16,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 20:00:16,843 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 20:00:17,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:00:17,437 INFO L93 Difference]: Finished difference Result 317 states and 538 transitions. [2021-11-25 20:00:17,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 20:00:17,442 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 20:00:17,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:00:17,452 INFO L225 Difference]: With dead ends: 317 [2021-11-25 20:00:17,452 INFO L226 Difference]: Without dead ends: 157 [2021-11-25 20:00:17,456 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 20:00:17,460 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:00:17,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 20:00:17,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-25 20:00:17,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2021-11-25 20:00:17,508 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 20:00:17,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2021-11-25 20:00:17,512 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 7 [2021-11-25 20:00:17,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:00:17,513 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2021-11-25 20:00:17,513 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 20:00:17,513 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2021-11-25 20:00:17,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 20:00:17,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:17,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:00:17,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:00:17,515 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 20:00:17,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:17,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1156235943, now seen corresponding path program 1 times [2021-11-25 20:00:17,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:17,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005592862] [2021-11-25 20:00:17,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:17,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:17,589 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 20:00:17,589 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:17,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005592862] [2021-11-25 20:00:17,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005592862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:00:17,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:00:17,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:00:17,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410010828] [2021-11-25 20:00:17,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:00:17,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:00:17,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:00:17,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:00:17,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:00:17,601 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 20:00:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:00:19,445 INFO L93 Difference]: Finished difference Result 324 states and 391 transitions. [2021-11-25 20:00:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:00:19,447 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 20:00:19,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:00:19,449 INFO L225 Difference]: With dead ends: 324 [2021-11-25 20:00:19,449 INFO L226 Difference]: Without dead ends: 232 [2021-11-25 20:00:19,450 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 20:00:19,452 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 74 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:00:19,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 444 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 20:00:19,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-25 20:00:19,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 159. [2021-11-25 20:00:19,469 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 20:00:19,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 190 transitions. [2021-11-25 20:00:19,471 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 190 transitions. Word has length 9 [2021-11-25 20:00:19,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:00:19,472 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 190 transitions. [2021-11-25 20:00:19,472 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 20:00:19,472 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 190 transitions. [2021-11-25 20:00:19,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 20:00:19,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:19,473 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 20:00:19,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:00:19,474 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 20:00:19,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:19,475 INFO L85 PathProgramCache]: Analyzing trace with hash 618014543, now seen corresponding path program 1 times [2021-11-25 20:00:19,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:19,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501400384] [2021-11-25 20:00:19,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:19,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:19,512 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:00:19,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073832532] [2021-11-25 20:00:19,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:19,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:19,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:00:19,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:00:19,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:00:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:20,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:00:20,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:00:20,210 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 20:00:20,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:00:20,211 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:20,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501400384] [2021-11-25 20:00:20,211 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:00:20,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073832532] [2021-11-25 20:00:20,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073832532] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:00:20,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:00:20,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:00:20,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62334257] [2021-11-25 20:00:20,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:00:20,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:00:20,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:00:20,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:00:20,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:00:20,215 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 20:00:21,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:00:21,860 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2021-11-25 20:00:21,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:00:21,862 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 20:00:21,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:00:21,863 INFO L225 Difference]: With dead ends: 170 [2021-11-25 20:00:21,863 INFO L226 Difference]: Without dead ends: 168 [2021-11-25 20:00:21,864 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 20:00:21,865 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 11 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:00:21,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 778 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:00:21,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-25 20:00:21,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-25 20:00:21,878 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 20:00:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2021-11-25 20:00:21,880 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 20 [2021-11-25 20:00:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:00:21,880 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2021-11-25 20:00:21,880 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 20:00:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2021-11-25 20:00:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:00:21,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:21,882 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 20:00:21,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:00:22,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:22,105 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 20:00:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash -746982808, now seen corresponding path program 1 times [2021-11-25 20:00:22,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:22,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444513796] [2021-11-25 20:00:22,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:22,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:22,219 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:00:22,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [749413859] [2021-11-25 20:00:22,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:22,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:00:22,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:00:22,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:00:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:22,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 1641 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:00:22,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:00:23,003 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 20:00:23,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:00:23,006 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:23,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444513796] [2021-11-25 20:00:23,007 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:00:23,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749413859] [2021-11-25 20:00:23,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749413859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:00:23,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:00:23,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:00:23,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987871619] [2021-11-25 20:00:23,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:00:23,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:00:23,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:00:23,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:00:23,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:00:23,009 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 20:00:23,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:00:23,765 INFO L93 Difference]: Finished difference Result 408 states and 486 transitions. [2021-11-25 20:00:23,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:00:23,765 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 20:00:23,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:00:23,767 INFO L225 Difference]: With dead ends: 408 [2021-11-25 20:00:23,767 INFO L226 Difference]: Without dead ends: 243 [2021-11-25 20:00:23,768 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 20:00:23,769 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 68 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:00:23,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 310 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:00:23,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-25 20:00:23,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 211. [2021-11-25 20:00:23,784 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 20:00:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 248 transitions. [2021-11-25 20:00:23,786 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 248 transitions. Word has length 28 [2021-11-25 20:00:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:00:23,787 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 248 transitions. [2021-11-25 20:00:23,787 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 20:00:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 248 transitions. [2021-11-25 20:00:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 20:00:23,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:23,788 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 20:00:23,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:00:24,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:24,003 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 20:00:24,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:24,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1769840484, now seen corresponding path program 1 times [2021-11-25 20:00:24,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:24,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658870645] [2021-11-25 20:00:24,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:24,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:24,088 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:00:24,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1793888666] [2021-11-25 20:00:24,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:24,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:24,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:00:24,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:00:24,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:00:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:24,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:00:24,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:00:24,578 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 20:00:24,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:00:24,699 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 20:00:24,700 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:24,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658870645] [2021-11-25 20:00:24,700 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:00:24,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793888666] [2021-11-25 20:00:24,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793888666] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 20:00:24,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:00:24,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2021-11-25 20:00:24,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939307370] [2021-11-25 20:00:24,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:00:24,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:00:24,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:00:24,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:00:24,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:00:24,703 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 20:00:25,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:00:25,744 INFO L93 Difference]: Finished difference Result 801 states and 954 transitions. [2021-11-25 20:00:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:00:25,745 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 20:00:25,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:00:25,750 INFO L225 Difference]: With dead ends: 801 [2021-11-25 20:00:25,750 INFO L226 Difference]: Without dead ends: 606 [2021-11-25 20:00:25,751 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 20:00:25,752 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 961 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:00:25,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [961 Valid, 493 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 20:00:25,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-25 20:00:25,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 356. [2021-11-25 20:00:25,774 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 20:00:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 421 transitions. [2021-11-25 20:00:25,777 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 421 transitions. Word has length 32 [2021-11-25 20:00:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:00:25,778 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 421 transitions. [2021-11-25 20:00:25,778 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 20:00:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 421 transitions. [2021-11-25 20:00:25,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 20:00:25,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:25,781 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 20:00:25,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:00:26,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:26,007 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 20:00:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash -498476679, now seen corresponding path program 1 times [2021-11-25 20:00:26,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:26,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193633987] [2021-11-25 20:00:26,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:26,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:26,055 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:00:26,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217327778] [2021-11-25 20:00:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:26,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:26,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:00:26,056 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:00:26,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:00:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:26,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:00:26,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:00:26,605 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 20:00:26,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:00:26,605 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:26,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193633987] [2021-11-25 20:00:26,605 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:00:26,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217327778] [2021-11-25 20:00:26,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217327778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:00:26,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:00:26,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:00:26,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581079166] [2021-11-25 20:00:26,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:00:26,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:00:26,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:00:26,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:00:26,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:00:26,608 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 20:00:29,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:00:29,616 INFO L93 Difference]: Finished difference Result 680 states and 806 transitions. [2021-11-25 20:00:29,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:00:29,616 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 20:00:29,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:00:29,619 INFO L225 Difference]: With dead ends: 680 [2021-11-25 20:00:29,619 INFO L226 Difference]: Without dead ends: 356 [2021-11-25 20:00:29,620 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 20:00:29,621 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 17 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:00:29,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 670 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-25 20:00:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-25 20:00:29,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2021-11-25 20:00:29,638 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 20:00:29,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 420 transitions. [2021-11-25 20:00:29,640 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 420 transitions. Word has length 57 [2021-11-25 20:00:29,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:00:29,641 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 420 transitions. [2021-11-25 20:00:29,641 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 20:00:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 420 transitions. [2021-11-25 20:00:29,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 20:00:29,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:29,643 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 20:00:29,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:00:29,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:29,859 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 20:00:29,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:29,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1204393698, now seen corresponding path program 1 times [2021-11-25 20:00:29,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:29,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311923245] [2021-11-25 20:00:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:29,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:29,902 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:00:29,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388085186] [2021-11-25 20:00:29,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:29,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:29,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:00:29,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:00:29,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:00:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:30,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:00:30,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:00:30,569 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 20:00:30,583 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 20:00:30,593 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 20:00:30,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:00:30,593 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:30,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311923245] [2021-11-25 20:00:30,593 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:00:30,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388085186] [2021-11-25 20:00:30,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388085186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:00:30,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:00:30,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:00:30,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315200869] [2021-11-25 20:00:30,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:00:30,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:00:30,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:00:30,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:00:30,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:00:30,596 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 20:00:32,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:00:32,037 INFO L93 Difference]: Finished difference Result 513 states and 615 transitions. [2021-11-25 20:00:32,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:00:32,040 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 20:00:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:00:32,044 INFO L225 Difference]: With dead ends: 513 [2021-11-25 20:00:32,044 INFO L226 Difference]: Without dead ends: 446 [2021-11-25 20:00:32,045 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 20:00:32,046 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 48 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:00:32,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 438 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 20:00:32,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-11-25 20:00:32,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 360. [2021-11-25 20:00:32,065 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 20:00:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2021-11-25 20:00:32,067 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 62 [2021-11-25 20:00:32,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:00:32,068 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2021-11-25 20:00:32,068 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 20:00:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2021-11-25 20:00:32,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-25 20:00:32,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:32,070 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 20:00:32,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:00:32,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-25 20:00:32,283 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 20:00:32,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:32,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1031523685, now seen corresponding path program 1 times [2021-11-25 20:00:32,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:32,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380393277] [2021-11-25 20:00:32,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:32,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:32,346 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:00:32,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159830334] [2021-11-25 20:00:32,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:32,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:32,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:00:32,357 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:00:32,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:00:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:32,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-25 20:00:32,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:00:33,132 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 20:00:33,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:00:33,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:33,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380393277] [2021-11-25 20:00:33,133 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:00:33,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159830334] [2021-11-25 20:00:33,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159830334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:00:33,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:00:33,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 20:00:33,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994341703] [2021-11-25 20:00:33,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:00:33,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 20:00:33,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:00:33,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 20:00:33,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:00:33,136 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 20:00:35,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:00:37,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:00:38,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:00:38,156 INFO L93 Difference]: Finished difference Result 692 states and 821 transitions. [2021-11-25 20:00:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:00:38,160 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 20:00:38,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:00:38,162 INFO L225 Difference]: With dead ends: 692 [2021-11-25 20:00:38,163 INFO L226 Difference]: Without dead ends: 363 [2021-11-25 20:00:38,164 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 20:00:38,164 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 14 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:00:38,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1008 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-25 20:00:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2021-11-25 20:00:38,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2021-11-25 20:00:38,184 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 20:00:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2021-11-25 20:00:38,187 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 69 [2021-11-25 20:00:38,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:00:38,187 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2021-11-25 20:00:38,188 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 20:00:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2021-11-25 20:00:38,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-25 20:00:38,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:00:38,190 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 20:00:38,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:00:38,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-25 20:00:38,403 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 20:00:38,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:00:38,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1542696511, now seen corresponding path program 1 times [2021-11-25 20:00:38,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:00:38,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000860295] [2021-11-25 20:00:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:38,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:00:38,449 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:00:38,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401962442] [2021-11-25 20:00:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:00:38,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:00:38,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:00:38,451 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:00:38,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c97ee5fe-37c0-43a5-9468-a46c027db5f8/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:00:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:00:43,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-25 20:00:43,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:00:43,597 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 20:00:43,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:00:43,859 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 20:00:43,859 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:00:43,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000860295] [2021-11-25 20:00:43,859 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:00:43,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401962442] [2021-11-25 20:00:43,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401962442] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:00:43,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1911878329] [2021-11-25 20:00:43,879 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2021-11-25 20:00:43,879 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:00:43,883 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:00:43,889 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:00:43,889 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:00:43,975 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 20:00:43,979 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 20:00:43,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,015 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 20:00:44,015 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 20:00:44,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,033 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:44,083 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-25 20:00:44,083 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 20:00:44,094 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 20:00:44,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,117 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 20:00:44,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,136 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 20:00:44,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,158 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 20:00:44,164 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:44,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,210 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:00:44,211 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 20:00:44,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,317 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 20:00:44,317 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 20:00:44,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,341 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 20:00:44,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,363 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 20:00:44,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,383 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 20:00:44,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:44,398 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 20:00:44,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,432 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 20:00:44,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,903 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 20:00:44,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 20:00:44,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,955 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 20:00:44,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,980 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 20:00:44,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:44,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,005 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 20:00:45,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,029 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 20:00:45,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,098 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 20:00:45,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,120 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 20:00:45,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,140 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 20:00:45,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,170 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 20:00:45,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,201 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 20:00:45,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,228 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 20:00:45,447 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 20:00:45,455 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 20:00:45,458 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 20:00:45,498 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 20:00:45,504 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 20:00:45,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,567 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 20:00:45,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,583 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 20:00:45,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,597 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 20:00:45,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,623 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 20:00:45,635 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 20:00:45,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,655 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 20:00:45,686 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 20:00:45,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,705 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 20:00:45,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:45,986 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 20:00:46,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,009 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 20:00:46,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,029 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 20:00:46,041 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 20:00:46,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,061 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 20:00:46,090 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 20:00:46,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,107 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 20:00:46,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,123 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 20:00:46,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 20:00:46,213 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 20:00:46,222 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 20:00:46,275 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 20:00:46,281 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 20:00:46,287 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 20:00:46,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,312 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 20:00:46,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,321 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 20:00:46,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:46,329 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 20:00:46,354 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 20:00:46,359 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 20:00:46,364 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 20:00:46,402 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 20:00:46,420 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 20:00:46,471 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 20:00:46,480 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 20:00:47,790 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 20:00:47,791 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 20:00:47,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:49,350 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 20:00:49,350 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 20:00:49,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:50,785 INFO L354 Elim1Store]: treesize reduction 1112, result has 36.6 percent of original size [2021-11-25 20:00:50,786 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 20:00:51,033 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:51,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:51,096 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 20:00:51,096 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 20:00:51,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:51,212 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:00:51,212 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 20:00:51,264 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:51,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:51,292 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 20:00:51,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:51,358 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 20:00:51,358 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 20:00:51,387 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:51,445 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 20:00:51,471 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:51,495 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:51,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:51,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:51,735 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-25 20:00:51,736 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 20:00:51,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:51,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:51,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:51,816 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 20:00:51,847 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:52,365 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:52,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:52,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:52,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:52,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:52,407 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 20:00:52,454 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:52,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:52,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:52,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:52,467 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 20:00:52,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:52,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:52,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:52,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:52,563 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 20:00:52,697 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:52,716 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:52,744 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:52,976 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:52,994 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:53,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,025 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:53,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,036 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 20:00:53,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,096 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 20:00:53,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:53,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,200 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 20:00:53,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,592 INFO L354 Elim1Store]: treesize reduction 135, result has 57.9 percent of original size [2021-11-25 20:00:53,593 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 20:00:53,768 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:53,795 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:53,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:53,998 INFO L354 Elim1Store]: treesize reduction 133, result has 60.1 percent of original size [2021-11-25 20:00:53,998 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 20:00:54,058 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:54,080 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:54,100 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:54,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:54,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:54,208 INFO L354 Elim1Store]: treesize reduction 288, result has 0.3 percent of original size [2021-11-25 20:00:54,208 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 20:00:54,695 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:54,718 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:54,744 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:54,794 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:54,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:54,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:54,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:54,812 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 20:00:54,842 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:54,874 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:54,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:54,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:54,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:54,946 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 20:00:55,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:55,040 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:00:55,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:55,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:55,053 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 20:00:55,230 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:55,257 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:55,279 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:55,309 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:55,353 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:00:55,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:55,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:55,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:55,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:00:56,356 INFO L354 Elim1Store]: treesize reduction 400, result has 54.5 percent of original size [2021-11-25 20:00:56,357 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 20:04:20,736 WARN L227 SmtUtils]: Spent 6.62s 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 20:09:17,662 WARN L227 SmtUtils]: Spent 18.71s 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)