./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/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_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/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_d75e69e2-7376-4d94-9527-4a41bb07c585/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 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:30:12,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:30:12,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:30:12,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:30:12,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:30:12,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:30:12,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:30:12,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:30:12,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:30:12,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:30:12,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:30:12,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:30:12,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:30:12,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:30:12,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:30:12,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:30:12,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:30:12,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:30:12,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:30:12,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:30:12,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:30:12,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:30:12,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:30:12,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:30:12,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:30:12,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:30:12,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:30:12,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:30:12,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:30:12,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:30:12,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:30:12,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:30:12,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:30:12,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:30:12,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:30:12,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:30:12,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:30:12,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:30:12,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:30:12,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:30:12,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:30:12,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:30:12,489 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:30:12,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:30:12,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:30:12,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:30:12,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:30:12,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:30:12,498 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:30:12,499 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:30:12,499 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:30:12,499 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:30:12,500 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:30:12,501 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:30:12,501 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:30:12,501 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:30:12,501 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:30:12,502 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:30:12,502 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:30:12,502 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:30:12,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:30:12,503 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:30:12,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:30:12,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:30:12,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:30:12,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:30:12,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:30:12,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:30:12,506 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:30:12,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:30:12,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:30:12,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:30:12,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:30:12,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:30:12,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:30:12,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:30:12,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:30:12,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:30:12,509 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:30:12,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:30:12,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:30:12,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:30:12,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:30:12,511 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_d75e69e2-7376-4d94-9527-4a41bb07c585/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2021-11-25 18:30:12,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:30:12,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:30:12,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:30:12,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:30:12,855 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:30:12,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2021-11-25 18:30:12,936 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/data/a5af84269/1f8b796236594d9ea313f621cbd0ce31/FLAGa66966632 [2021-11-25 18:30:13,688 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:30:13,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2021-11-25 18:30:13,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/data/a5af84269/1f8b796236594d9ea313f621cbd0ce31/FLAGa66966632 [2021-11-25 18:30:13,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/data/a5af84269/1f8b796236594d9ea313f621cbd0ce31 [2021-11-25 18:30:13,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:30:13,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:30:13,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:30:13,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:30:13,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:30:13,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0d396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13, skipping insertion in model container [2021-11-25 18:30:13,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:30:13,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:30:14,382 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_d75e69e2-7376-4d94-9527-4a41bb07c585/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2021-11-25 18:30:14,574 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_d75e69e2-7376-4d94-9527-4a41bb07c585/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2021-11-25 18:30:14,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:30:14,617 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:30:14,659 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_d75e69e2-7376-4d94-9527-4a41bb07c585/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2021-11-25 18:30:14,707 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_d75e69e2-7376-4d94-9527-4a41bb07c585/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2021-11-25 18:30:14,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:30:14,777 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:30:14,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14 WrapperNode [2021-11-25 18:30:14,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:30:14,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:30:14,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:30:14,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:30:14,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:14,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:14,933 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1181 [2021-11-25 18:30:14,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:30:14,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:30:14,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:30:14,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:30:14,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:14,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:14,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:14,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:15,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:15,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:15,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:15,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:30:15,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:30:15,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:30:15,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:30:15,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (1/1) ... [2021-11-25 18:30:15,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:30:15,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:15,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:30:15,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:30:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:30:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 18:30:15,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 18:30:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:30:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:30:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:30:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:30:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:30:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:30:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:30:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:30:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:30:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:30:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:30:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:30:15,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:30:15,412 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:30:15,413 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:30:16,616 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:30:17,131 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:30:17,131 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-25 18:30:17,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:17 BoogieIcfgContainer [2021-11-25 18:30:17,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:30:17,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:30:17,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:30:17,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:30:17,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:30:13" (1/3) ... [2021-11-25 18:30:17,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4aea82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:17, skipping insertion in model container [2021-11-25 18:30:17,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:14" (2/3) ... [2021-11-25 18:30:17,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4aea82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:17, skipping insertion in model container [2021-11-25 18:30:17,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:17" (3/3) ... [2021-11-25 18:30:17,146 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-2.i [2021-11-25 18:30:17,155 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:30:17,155 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:30:17,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:30:17,218 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:30:17,219 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:30:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:30:17,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 18:30:17,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:17,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:17,250 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:17,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:17,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2145808350, now seen corresponding path program 1 times [2021-11-25 18:30:17,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:17,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940503933] [2021-11-25 18:30:17,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:17,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:17,442 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:17,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940503933] [2021-11-25 18:30:17,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940503933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:17,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:17,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:30:17,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658691194] [2021-11-25 18:30:17,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:17,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:30:17,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:17,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:30:17,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:30:17,489 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:18,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:18,035 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2021-11-25 18:30:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:30:18,042 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 18:30:18,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:18,052 INFO L225 Difference]: With dead ends: 273 [2021-11-25 18:30:18,052 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 18:30:18,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:30:18,064 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:18,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 18:30:18,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 18:30:18,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 18:30:18,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:30:18,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 18:30:18,110 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 18:30:18,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:18,110 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 18:30:18,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:18,111 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 18:30:18,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 18:30:18,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:18,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:18,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:30:18,113 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:18,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:18,114 INFO L85 PathProgramCache]: Analyzing trace with hash 131240621, now seen corresponding path program 1 times [2021-11-25 18:30:18,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:18,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693332694] [2021-11-25 18:30:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:18,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:18,188 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:18,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693332694] [2021-11-25 18:30:18,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693332694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:18,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:18,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:30:18,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524472639] [2021-11-25 18:30:18,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:18,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:30:18,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:18,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:30:18,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:30:18,191 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:19,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:19,934 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 18:30:19,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:30:19,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 18:30:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:19,945 INFO L225 Difference]: With dead ends: 258 [2021-11-25 18:30:19,945 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 18:30:19,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:30:19,947 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:19,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 18:30:19,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 18:30:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 18:30:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:30:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 18:30:19,967 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 18:30:19,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:19,967 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 18:30:19,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 18:30:19,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 18:30:19,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:19,970 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:19,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:30:19,970 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:19,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:19,971 INFO L85 PathProgramCache]: Analyzing trace with hash 993801336, now seen corresponding path program 1 times [2021-11-25 18:30:19,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:19,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284115061] [2021-11-25 18:30:19,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:19,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:20,101 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:20,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080592023] [2021-11-25 18:30:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:20,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:20,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:20,103 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:20,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:30:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:20,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:30:20,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:21,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:21,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:30:21,021 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:21,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284115061] [2021-11-25 18:30:21,022 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:21,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080592023] [2021-11-25 18:30:21,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080592023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:21,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:21,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:30:21,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66406787] [2021-11-25 18:30:21,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:21,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:30:21,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:21,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:30:21,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:30:21,025 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:21,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:21,797 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 18:30:21,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:30:21,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 18:30:21,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:21,806 INFO L225 Difference]: With dead ends: 304 [2021-11-25 18:30:21,806 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 18:30:21,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:30:21,809 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:21,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 18:30:21,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 18:30:21,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 18:30:21,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:30:21,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 18:30:21,828 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 18:30:21,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:21,829 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 18:30:21,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:21,829 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 18:30:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 18:30:21,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:21,832 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:21,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 18:30:22,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:22,059 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:22,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash 237821332, now seen corresponding path program 1 times [2021-11-25 18:30:22,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:22,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058451261] [2021-11-25 18:30:22,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:22,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:22,134 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:22,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [396182889] [2021-11-25 18:30:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:22,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:22,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:22,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:22,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:30:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:22,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:30:22,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:22,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:30:22,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:30:22,847 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 18:30:22,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:30:22,848 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:22,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058451261] [2021-11-25 18:30:22,852 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:22,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396182889] [2021-11-25 18:30:22,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396182889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:22,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:22,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:30:22,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66293872] [2021-11-25 18:30:22,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:22,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:30:22,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:22,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:30:22,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:30:22,858 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:30:24,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:24,351 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 18:30:24,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:30:24,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 18:30:24,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:24,358 INFO L225 Difference]: With dead ends: 231 [2021-11-25 18:30:24,358 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 18:30:24,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:30:24,360 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:24,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 18:30:24,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 18:30:24,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 18:30:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:30:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 18:30:24,377 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 18:30:24,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:24,378 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 18:30:24,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:30:24,379 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 18:30:24,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 18:30:24,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:24,381 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:24,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:24,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:24,596 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:24,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:24,596 INFO L85 PathProgramCache]: Analyzing trace with hash 375836451, now seen corresponding path program 1 times [2021-11-25 18:30:24,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:24,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202587211] [2021-11-25 18:30:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:24,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:24,685 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:24,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [6713410] [2021-11-25 18:30:24,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:24,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:24,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:24,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:24,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:30:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:25,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:30:25,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:25,375 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:30:25,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:30:25,375 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:25,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202587211] [2021-11-25 18:30:25,377 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:25,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6713410] [2021-11-25 18:30:25,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6713410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:25,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:25,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:30:25,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117703583] [2021-11-25 18:30:25,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:25,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:30:25,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:25,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:30:25,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:30:25,380 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:30:26,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:26,215 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 18:30:26,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:30:26,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-25 18:30:26,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:26,219 INFO L225 Difference]: With dead ends: 395 [2021-11-25 18:30:26,219 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 18:30:26,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:30:26,221 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:26,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 18:30:26,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 18:30:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 18:30:26,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:30:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 18:30:26,243 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 18:30:26,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:26,244 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 18:30:26,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:30:26,245 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 18:30:26,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 18:30:26,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:26,248 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:26,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:26,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:26,463 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:26,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1459918940, now seen corresponding path program 1 times [2021-11-25 18:30:26,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:26,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598228995] [2021-11-25 18:30:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:26,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:26,516 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:26,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911188866] [2021-11-25 18:30:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:26,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:26,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:26,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:26,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:30:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:29,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:30:29,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:29,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:30:29,780 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:29,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598228995] [2021-11-25 18:30:29,781 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:29,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911188866] [2021-11-25 18:30:29,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911188866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:29,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:29,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:30:29,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689103168] [2021-11-25 18:30:29,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:29,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:30:29,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:29,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:30:29,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:30:29,783 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:30:30,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:30,610 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 18:30:30,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:30:30,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-11-25 18:30:30,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:30,618 INFO L225 Difference]: With dead ends: 411 [2021-11-25 18:30:30,618 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 18:30:30,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:30:30,620 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:30,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 18:30:30,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 18:30:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 18:30:30,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 18:30:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 18:30:30,637 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 18:30:30,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:30,638 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 18:30:30,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:30:30,638 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 18:30:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 18:30:30,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:30,642 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:30,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:30,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 18:30:30,855 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:30,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:30,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1243076896, now seen corresponding path program 1 times [2021-11-25 18:30:30,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:30,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333951110] [2021-11-25 18:30:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:30,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:30,909 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:30,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800893055] [2021-11-25 18:30:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:30,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:30,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:30,911 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:30,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d75e69e2-7376-4d94-9527-4a41bb07c585/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:30:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:32,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:30:32,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:30:32,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:30:32,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:32,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333951110] [2021-11-25 18:30:32,488 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:32,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800893055] [2021-11-25 18:30:32,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800893055] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:30:32,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [978091948] [2021-11-25 18:30:32,514 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 18:30:32,514 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:30:32,519 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:30:32,525 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:30:32,526 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:30:32,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,688 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 18:30:32,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-25 18:30:32,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,720 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 18:30:32,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:30:32,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:30:32,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:30:32,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:30:32,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,816 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:30:32,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-25 18:30:32,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:30:32,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,883 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 18:30:32,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-25 18:30:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:30:32,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:32,950 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:30:32,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:30:33,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 18:30:33,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-25 18:30:33,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:30:33,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:30:33,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:30:33,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 18:30:33,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 18:30:33,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:30:33,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 18:30:33,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:30:33,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 18:30:33,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,729 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 18:30:33,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2021-11-25 18:30:33,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:33,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 18:30:33,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:30:33,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:30:33,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:30:33,975 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 18:30:33,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 60 [2021-11-25 18:30:34,008 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:30:34,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2021-11-25 18:30:34,043 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:30:34,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2021-11-25 18:30:34,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:30:34,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:30:34,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:30:34,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:30:34,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 18:30:34,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 18:30:34,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:30:34,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 18:30:34,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:34,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 18:30:41,745 WARN L227 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:30:41,746 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 18:30:41,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 18:30:41,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,128 WARN L227 SmtUtils]: Spent 9.27s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:30:51,129 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:30:51,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 18:30:51,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,729 INFO L244 Elim1Store]: Index analysis took 379 ms [2021-11-25 18:31:02,667 WARN L227 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 245 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:31:02,668 INFO L354 Elim1Store]: treesize reduction 2494, result has 31.7 percent of original size [2021-11-25 18:31:02,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 1373 [2021-11-25 18:31:03,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:03,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:03,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:03,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:03,379 INFO L244 Elim1Store]: Index analysis took 219 ms [2021-11-25 18:31:04,295 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 18:31:04,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 73 [2021-11-25 18:31:04,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:04,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:04,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:04,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:04,680 INFO L244 Elim1Store]: Index analysis took 116 ms [2021-11-25 18:31:04,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 18:31:05,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,363 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 18:31:05,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 18:31:05,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,748 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:31:05,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 18:31:05,959 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:06,026 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:06,139 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:06,208 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:06,346 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:06,412 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:06,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:06,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:06,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:06,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:06,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:06,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:06,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:06,632 INFO L244 Elim1Store]: Index analysis took 122 ms [2021-11-25 18:31:06,726 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:31:06,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3084 treesize of output 2866 [2021-11-25 18:31:06,924 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:07,151 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:07,236 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:07,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,272 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:07,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,360 INFO L244 Elim1Store]: Index analysis took 124 ms [2021-11-25 18:31:07,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 18:31:07,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:07,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,668 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:07,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:07,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,731 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:07,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:07,746 INFO L244 Elim1Store]: Index analysis took 105 ms [2021-11-25 18:31:07,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3105 treesize of output 2651 [2021-11-25 18:31:08,167 INFO L244 Elim1Store]: Index analysis took 217 ms [2021-11-25 18:31:11,094 INFO L354 Elim1Store]: treesize reduction 468, result has 74.7 percent of original size [2021-11-25 18:31:11,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3105 treesize of output 4035 [2021-11-25 18:31:13,280 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:13,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:13,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:13,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,533 INFO L244 Elim1Store]: Index analysis took 166 ms [2021-11-25 18:31:13,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 18:31:13,781 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:13,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:13,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:13,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,984 INFO L244 Elim1Store]: Index analysis took 123 ms [2021-11-25 18:31:14,355 INFO L354 Elim1Store]: treesize reduction 6, result has 91.3 percent of original size [2021-11-25 18:31:14,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3096 treesize of output 2710 [2021-11-25 18:31:15,404 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:15,477 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:15,581 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:15,651 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:15,801 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:15,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:15,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:15,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:15,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3075 treesize of output 2645 [2021-11-25 18:31:15,998 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:16,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:16,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:16,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:16,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:16,238 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-11-25 18:31:16,752 INFO L354 Elim1Store]: treesize reduction 793, result has 31.2 percent of original size [2021-11-25 18:31:16,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3084 treesize of output 3008 [2021-11-25 18:31:17,016 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:18,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:18,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-25 18:31:18,281 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:18,321 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:18,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:18,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-25 18:31:18,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:18,813 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 18:31:18,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-25 18:31:18,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:18,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:18,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:18,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-11-25 18:31:19,019 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:21,603 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:22,066 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:22,131 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:22,155 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:22,244 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:22,348 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:31:25,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:25,545 INFO L190 IndexEqualityManager]: detected not equals via solver