./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur --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 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:45:42,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:45:42,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:45:42,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:45:42,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:45:42,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:45:42,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:45:42,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:45:42,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:45:42,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:45:42,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:45:42,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:45:42,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:45:42,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:45:42,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:45:42,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:45:42,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:45:42,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:45:42,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:45:42,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:45:42,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:45:42,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:45:42,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:45:42,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:45:42,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:45:42,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:45:42,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:45:42,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:45:42,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:45:42,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:45:42,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:45:42,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:45:42,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:45:42,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:45:42,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:45:42,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:45:42,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:45:42,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:45:42,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:45:42,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:45:42,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:45:42,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:45:42,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:45:42,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:45:42,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:45:42,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:45:42,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:45:42,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:45:42,436 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:45:42,437 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:45:42,437 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:45:42,437 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:45:42,438 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:45:42,439 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:45:42,439 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:45:42,439 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:45:42,439 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:45:42,440 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:45:42,440 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:45:42,440 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:45:42,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:45:42,441 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:45:42,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:45:42,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:45:42,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:45:42,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:45:42,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:45:42,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:45:42,443 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:45:42,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:45:42,444 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:45:42,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:45:42,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:45:42,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:45:42,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:45:42,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:45:42,446 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:45:42,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:45:42,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:45:42,446 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:45:42,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:45:42,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:45:42,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:45:42,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 [2022-11-26 00:45:42,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:45:42,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:45:42,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:45:42,778 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:45:42,779 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:45:42,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2022-11-26 00:45:45,788 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:45:46,116 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:45:46,117 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2022-11-26 00:45:46,138 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/data/e96146910/94b8b649cfb14f0e819ba4e9187f98c2/FLAG1c2aadbf3 [2022-11-26 00:45:46,159 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/data/e96146910/94b8b649cfb14f0e819ba4e9187f98c2 [2022-11-26 00:45:46,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:45:46,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:45:46,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:45:46,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:45:46,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:45:46,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e3d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46, skipping insertion in model container [2022-11-26 00:45:46,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:45:46,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:45:46,562 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2022-11-26 00:45:46,575 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2022-11-26 00:45:46,577 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2022-11-26 00:45:46,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:45:46,614 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:45:46,667 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2022-11-26 00:45:46,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2022-11-26 00:45:46,669 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2022-11-26 00:45:46,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:45:46,705 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:45:46,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46 WrapperNode [2022-11-26 00:45:46,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:45:46,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:45:46,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:45:46,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:45:46,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,758 INFO L138 Inliner]: procedures = 142, calls = 62, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 161 [2022-11-26 00:45:46,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:45:46,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:45:46,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:45:46,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:45:46,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,791 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:45:46,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:45:46,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:45:46,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:45:46,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (1/1) ... [2022-11-26 00:45:46,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:45:46,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:45:46,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:45:46,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:45:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-11-26 00:45:46,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-11-26 00:45:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2022-11-26 00:45:46,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2022-11-26 00:45:46,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:45:46,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:45:46,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:45:46,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-11-26 00:45:46,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-11-26 00:45:46,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:45:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:45:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:45:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:45:46,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-11-26 00:45:46,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-11-26 00:45:46,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:45:46,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:45:47,026 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:45:47,028 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:45:47,431 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:45:47,589 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:45:47,594 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-26 00:45:47,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:45:47 BoogieIcfgContainer [2022-11-26 00:45:47,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:45:47,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:45:47,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:45:47,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:45:47,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:45:46" (1/3) ... [2022-11-26 00:45:47,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1018458f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:45:47, skipping insertion in model container [2022-11-26 00:45:47,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:46" (2/3) ... [2022-11-26 00:45:47,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1018458f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:45:47, skipping insertion in model container [2022-11-26 00:45:47,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:45:47" (3/3) ... [2022-11-26 00:45:47,614 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2022-11-26 00:45:47,633 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:45:47,633 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 00:45:47,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:45:47,738 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@98ec403, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:45:47,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-26 00:45:47,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 34 states have internal predecessors, (43), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-26 00:45:47,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:45:47,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:47,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:45:47,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:45:47,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:47,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1976968745, now seen corresponding path program 1 times [2022-11-26 00:45:47,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:47,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700348608] [2022-11-26 00:45:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:47,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:48,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:48,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700348608] [2022-11-26 00:45:48,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700348608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:45:48,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:45:48,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:45:48,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246139246] [2022-11-26 00:45:48,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:45:48,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:45:48,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:48,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:45:48,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:45:48,400 INFO L87 Difference]: Start difference. First operand has 46 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 34 states have internal predecessors, (43), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:45:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:45:48,587 INFO L93 Difference]: Finished difference Result 124 states and 161 transitions. [2022-11-26 00:45:48,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:45:48,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 00:45:48,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:45:48,598 INFO L225 Difference]: With dead ends: 124 [2022-11-26 00:45:48,598 INFO L226 Difference]: Without dead ends: 79 [2022-11-26 00:45:48,601 INFO L412 NwaCegarLoop]: 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 [2022-11-26 00:45:48,604 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 42 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:45:48,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 122 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:45:48,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-26 00:45:48,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 65. [2022-11-26 00:45:48,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 49 states have internal predecessors, (63), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:45:48,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2022-11-26 00:45:48,652 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 6 [2022-11-26 00:45:48,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:45:48,652 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2022-11-26 00:45:48,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:45:48,653 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2022-11-26 00:45:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:45:48,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:48,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:45:48,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:45:48,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:45:48,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1295928281, now seen corresponding path program 1 times [2022-11-26 00:45:48,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:48,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408261697] [2022-11-26 00:45:48,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:48,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:48,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:48,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408261697] [2022-11-26 00:45:48,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408261697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:45:48,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:45:48,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:45:48,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274814799] [2022-11-26 00:45:48,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:45:48,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:45:48,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:48,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:45:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:45:48,715 INFO L87 Difference]: Start difference. First operand 65 states and 85 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:45:48,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:45:48,803 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2022-11-26 00:45:48,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:45:48,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-26 00:45:48,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:45:48,805 INFO L225 Difference]: With dead ends: 75 [2022-11-26 00:45:48,805 INFO L226 Difference]: Without dead ends: 73 [2022-11-26 00:45:48,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:45:48,807 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:45:48,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:45:48,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-26 00:45:48,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-26 00:45:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 55 states have internal predecessors, (69), 11 states have call successors, (11), 5 states have call predecessors, (11), 7 states have return successors, (17), 13 states have call predecessors, (17), 11 states have call successors, (17) [2022-11-26 00:45:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 97 transitions. [2022-11-26 00:45:48,821 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 97 transitions. Word has length 11 [2022-11-26 00:45:48,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:45:48,821 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 97 transitions. [2022-11-26 00:45:48,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:45:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 97 transitions. [2022-11-26 00:45:48,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:45:48,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:48,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:45:48,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:45:48,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:45:48,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash -349854364, now seen corresponding path program 1 times [2022-11-26 00:45:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:48,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768526316] [2022-11-26 00:45:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:48,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:48,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:48,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768526316] [2022-11-26 00:45:48,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768526316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:45:48,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:45:48,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:45:48,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515109382] [2022-11-26 00:45:48,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:45:48,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:45:48,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:48,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:45:48,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:45:48,926 INFO L87 Difference]: Start difference. First operand 73 states and 97 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:45:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:45:49,116 INFO L93 Difference]: Finished difference Result 125 states and 161 transitions. [2022-11-26 00:45:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:45:49,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-26 00:45:49,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:45:49,118 INFO L225 Difference]: With dead ends: 125 [2022-11-26 00:45:49,118 INFO L226 Difference]: Without dead ends: 57 [2022-11-26 00:45:49,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:45:49,120 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 12 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:45:49,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 113 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:45:49,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-26 00:45:49,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2022-11-26 00:45:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 38 states have internal predecessors, (43), 9 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-11-26 00:45:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2022-11-26 00:45:49,139 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 12 [2022-11-26 00:45:49,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:45:49,139 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-11-26 00:45:49,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:45:49,139 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2022-11-26 00:45:49,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-26 00:45:49,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:49,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:45:49,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:45:49,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:45:49,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:49,143 INFO L85 PathProgramCache]: Analyzing trace with hash -462529757, now seen corresponding path program 1 times [2022-11-26 00:45:49,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:49,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296107072] [2022-11-26 00:45:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:49,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:49,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:49,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296107072] [2022-11-26 00:45:49,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296107072] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:45:49,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504530659] [2022-11-26 00:45:49,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:49,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:45:49,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:45:49,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:45:49,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:45:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:49,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-26 00:45:49,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:45:50,143 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-26 00:45:50,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-26 00:45:50,455 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-26 00:45:50,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 281 [2022-11-26 00:45:50,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:45:50,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:45:50,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:45:51,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:45:51,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:45:51,186 INFO L321 Elim1Store]: treesize reduction 28, result has 47.2 percent of original size [2022-11-26 00:45:51,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 394 treesize of output 417 [2022-11-26 00:45:51,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:51,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:51,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:51,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:51,491 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-26 00:45:51,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 147 treesize of output 115 [2022-11-26 00:45:51,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:51,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:51,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:51,977 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 8 [2022-11-26 00:45:52,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:52,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:45:52,353 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:45:52,353 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 1502 treesize of output 1471 [2022-11-26 00:45:52,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1814 treesize of output 1750 [2022-11-26 00:45:52,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1926 treesize of output 1894 [2022-11-26 00:45:52,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1894 treesize of output 1886 [2022-11-26 00:45:52,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1886 treesize of output 1870 [2022-11-26 00:45:52,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:45:52,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:52,761 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 28 [2022-11-26 00:45:52,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:52,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:52,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504530659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:45:52,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [344049841] [2022-11-26 00:45:52,950 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-26 00:45:52,950 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:45:52,954 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:45:52,959 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:45:52,959 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:45:53,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:45:53,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:45:53,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,286 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-26 00:45:53,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-26 00:45:53,343 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-26 00:45:53,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2022-11-26 00:45:53,377 INFO L321 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-26 00:45:53,377 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 31 [2022-11-26 00:45:53,409 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-26 00:45:53,409 INFO L350 Elim1Store]: Elim1 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 33 treesize of output 31 [2022-11-26 00:45:53,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,505 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-26 00:45:53,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-26 00:45:53,533 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:45:53,537 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:45:53,552 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:45:53,557 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:45:53,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,582 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:45:53,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,596 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:45:53,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,634 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:45:53,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,646 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:45:53,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:53,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:53,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:53,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:53,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,939 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:45:53,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:53,952 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:45:54,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:54,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:54,112 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:45:54,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:54,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:45:54,125 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:45:54,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:54,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:54,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:54,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:54,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:54,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:54,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:54,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:45:55,257 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 27 for LOIs [2022-11-26 00:45:55,262 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 34 for LOIs [2022-11-26 00:45:55,307 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 42 for LOIs [2022-11-26 00:45:55,346 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:45:59,022 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '915#(and (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |ULTIMATE.start_ldv_set_empty_#in~s#1.offset| |~#mutexes~0.offset|) (= |ULTIMATE.start_foo_~__mptr~5#1.base| (select (select |#memory_$Pointer$.base| |~#drvlist~0.base|) |~#drvlist~0.offset|)) (= |ULTIMATE.start_foo_~__mptr~7#1.offset| (select (select |#memory_$Pointer$.offset| |~#drvlist~0.base|) |~#drvlist~0.offset|)) (= |ULTIMATE.start_ldv_list_empty_~head#1.base| |ULTIMATE.start_ldv_list_empty_#in~head#1.base|) (= |ULTIMATE.start_ldv_list_empty_#res#1| |ULTIMATE.start_ldv_set_empty_#res#1|) (<= |ULTIMATE.start_foo_~N~0#1| |ULTIMATE.start_foo_~i~0#1|) (= (select (select |#memory_$Pointer$.base| |~#drvlist~0.base|) |~#drvlist~0.offset|) |ULTIMATE.start_foo_~__mptr~7#1.base|) (= (ite (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_ldv_list_empty_~head#1.base|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|) (= |ULTIMATE.start_ldv_list_empty_~head#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ldv_list_empty_~head#1.base|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|))) 1 0) |ULTIMATE.start_ldv_list_empty_#res#1|) (<= |#NULL.offset| 0) (<= 4 |~#drvlist~0.base|) (= |ULTIMATE.start_ldv_set_empty_#res#1| 0) (= |~#mutexes~0.base| |ULTIMATE.start_ldv_set_empty_#in~s#1.base|) (= |ULTIMATE.start_ldv_set_empty_#in~s#1.offset| |ULTIMATE.start_ldv_set_empty_~s#1.offset|) (= |ULTIMATE.start_foo_~__mptr~5#1.offset| |~#drvlist~0.offset|) (<= 3 |~#mutexes~0.base|) (= |ULTIMATE.start_ldv_set_empty_~s#1.base| |ULTIMATE.start_ldv_list_empty_#in~head#1.base|) (= |ULTIMATE.start_foo_~__mptr~7#1.offset| (+ 8 |ULTIMATE.start_foo_~me~1#1.offset|)) (= |ULTIMATE.start_ldv_list_empty_#in~head#1.offset| |ULTIMATE.start_ldv_list_empty_~head#1.offset|) (<= |~#drvlist~0.base| 4) (= |ULTIMATE.start_ldv_set_empty_~s#1.offset| |ULTIMATE.start_ldv_list_empty_#in~head#1.offset|) (= |~#drvlist~0.base| |ULTIMATE.start_foo_~me~1#1.base|) (= |ULTIMATE.start_foo_~__mptr~5#1.base| |~#drvlist~0.base|) (= |ULTIMATE.start_ldv_set_empty_~s#1.base| |ULTIMATE.start_ldv_set_empty_#in~s#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= |~#mutexes~0.base| 3) (or (and (= |~#drvlist~0.offset| 0) (= |~#mutexes~0.offset| 0) (= |ULTIMATE.start_foo_~i~0#1| 0) (= |#NULL.base| 0)) (and (= |~#drvlist~0.offset| 0) (= |ULTIMATE.start_foo_~me~0#1.offset| 0) (= |~#mutexes~0.offset| 0) (= |#NULL.base| 0))) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_foo_~__mptr~5#1.offset| (select (select |#memory_$Pointer$.offset| |~#drvlist~0.base|) |~#drvlist~0.offset|)) (<= 0 |ULTIMATE.start_foo_~i~0#1|))' at error location [2022-11-26 00:45:59,022 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:45:59,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:45:59,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 32 [2022-11-26 00:45:59,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167076807] [2022-11-26 00:45:59,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:45:59,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-26 00:45:59,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:59,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-26 00:45:59,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=2053, Unknown=6, NotChecked=0, Total=2256 [2022-11-26 00:45:59,026 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 32 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-26 00:46:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:01,142 INFO L93 Difference]: Finished difference Result 154 states and 196 transitions. [2022-11-26 00:46:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-26 00:46:01,143 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 19 [2022-11-26 00:46:01,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:01,145 INFO L225 Difference]: With dead ends: 154 [2022-11-26 00:46:01,145 INFO L226 Difference]: Without dead ends: 136 [2022-11-26 00:46:01,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 799 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=439, Invalid=3715, Unknown=6, NotChecked=0, Total=4160 [2022-11-26 00:46:01,148 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 504 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:01,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 416 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:46:01,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-26 00:46:01,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 92. [2022-11-26 00:46:01,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 70 states have internal predecessors, (87), 14 states have call successors, (14), 8 states have call predecessors, (14), 10 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2022-11-26 00:46:01,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 121 transitions. [2022-11-26 00:46:01,167 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 121 transitions. Word has length 19 [2022-11-26 00:46:01,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:01,167 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 121 transitions. [2022-11-26 00:46:01,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-26 00:46:01,168 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 121 transitions. [2022-11-26 00:46:01,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-26 00:46:01,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:01,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:01,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:46:01,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:46:01,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:46:01,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:01,375 INFO L85 PathProgramCache]: Analyzing trace with hash 983498160, now seen corresponding path program 1 times [2022-11-26 00:46:01,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:01,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142191185] [2022-11-26 00:46:01,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:01,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:03,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:03,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142191185] [2022-11-26 00:46:03,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142191185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:46:03,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82727832] [2022-11-26 00:46:03,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:03,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:46:03,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:46:03,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:46:03,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:46:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:03,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 113 conjunts are in the unsatisfiable core [2022-11-26 00:46:03,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:46:04,171 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-26 00:46:04,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-26 00:46:04,336 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-26 00:46:04,344 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:04,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-26 00:46:04,717 INFO L321 Elim1Store]: treesize reduction 50, result has 29.6 percent of original size [2022-11-26 00:46:04,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 57 [2022-11-26 00:46:04,756 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-26 00:46:04,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 64 [2022-11-26 00:46:04,774 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:46:04,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 42 [2022-11-26 00:46:04,792 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:46:04,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-26 00:46:04,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:46:05,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:05,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:46:07,639 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (and (forall ((v___ldv_list_add_~next.offset_16 Int) (v_ArrVal_265 (Array Int Int)) (v_ArrVal_266 (Array Int Int))) (= (select (select (store (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) (+ v___ldv_list_add_~next.offset_16 4) (+ |c_ULTIMATE.start_foo_~me~0#1.offset| 8))) |c_ULTIMATE.start_foo_~me~0#1.base| v_ArrVal_266) |c_~#drvlist~0.base| v_ArrVal_265) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.offset|)) (forall ((v_ArrVal_263 (Array Int Int)) (v___ldv_list_add_~next.offset_16 Int) (v_ArrVal_264 (Array Int Int))) (= |c_~#mutexes~0.base| (select (select (store (store (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) (+ v___ldv_list_add_~next.offset_16 4) |c_ULTIMATE.start_foo_~me~0#1.base|)) |c_ULTIMATE.start_foo_~me~0#1.base| v_ArrVal_264) |c_~#drvlist~0.base| v_ArrVal_263) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))))) is different from false [2022-11-26 00:46:07,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82727832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:46:07,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1577793114] [2022-11-26 00:46:07,647 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-26 00:46:07,647 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:46:07,648 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:46:07,648 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:46:07,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:46:07,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:46:07,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:46:07,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,037 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-26 00:46:08,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-26 00:46:08,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,133 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-26 00:46:08,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-26 00:46:08,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,279 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-26 00:46:08,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-26 00:46:08,299 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:08,304 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:08,314 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:08,318 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:08,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,376 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:08,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,388 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:08,402 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:46:08,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,553 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:08,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:08,564 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:08,578 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:46:08,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:08,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:08,713 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:46:08,714 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:46:08,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:08,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:08,820 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:46:08,822 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:46:09,992 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 27 for LOIs [2022-11-26 00:46:09,998 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 90 for LOIs [2022-11-26 00:46:10,055 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 34 for LOIs [2022-11-26 00:46:10,105 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 42 for LOIs [2022-11-26 00:46:10,147 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:46:14,929 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1445#(and (= |~#drvlist~0.offset| 0) (= |~#mutexes~0.base| 3) (= |ULTIMATE.start_foo_~me~0#1.offset| 0) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 1 |ULTIMATE.start_foo_~i~0#1|) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~N~0#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:46:14,930 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:46:14,930 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:46:14,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2022-11-26 00:46:14,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798769104] [2022-11-26 00:46:14,930 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:46:14,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-26 00:46:14,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:14,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-26 00:46:14,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=2234, Unknown=5, NotChecked=96, Total=2550 [2022-11-26 00:46:14,933 INFO L87 Difference]: Start difference. First operand 92 states and 121 transitions. Second operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 20 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-26 00:46:18,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:18,627 INFO L93 Difference]: Finished difference Result 246 states and 334 transitions. [2022-11-26 00:46:18,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-26 00:46:18,627 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 20 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 25 [2022-11-26 00:46:18,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:18,629 INFO L225 Difference]: With dead ends: 246 [2022-11-26 00:46:18,629 INFO L226 Difference]: Without dead ends: 165 [2022-11-26 00:46:18,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=496, Invalid=4613, Unknown=7, NotChecked=140, Total=5256 [2022-11-26 00:46:18,632 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 163 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 83 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:18,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 308 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 925 Invalid, 4 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:46:18,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-26 00:46:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 127. [2022-11-26 00:46:18,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 96 states have internal predecessors, (122), 19 states have call successors, (19), 11 states have call predecessors, (19), 14 states have return successors, (26), 20 states have call predecessors, (26), 19 states have call successors, (26) [2022-11-26 00:46:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 167 transitions. [2022-11-26 00:46:18,659 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 167 transitions. Word has length 25 [2022-11-26 00:46:18,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:18,659 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 167 transitions. [2022-11-26 00:46:18,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 20 states have internal predecessors, (31), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-26 00:46:18,660 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 167 transitions. [2022-11-26 00:46:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-26 00:46:18,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:18,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:18,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:46:18,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:46:18,874 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:46:18,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:18,875 INFO L85 PathProgramCache]: Analyzing trace with hash -487816988, now seen corresponding path program 2 times [2022-11-26 00:46:18,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:18,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738388728] [2022-11-26 00:46:18,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:18,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:46:24,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:24,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738388728] [2022-11-26 00:46:24,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738388728] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:46:24,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893642765] [2022-11-26 00:46:24,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:46:24,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:46:24,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:46:24,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:46:24,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:46:24,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-26 00:46:24,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:46:24,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 150 conjunts are in the unsatisfiable core [2022-11-26 00:46:24,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:46:24,579 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:46:24,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-26 00:46:24,787 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:24,797 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-26 00:46:25,385 INFO L321 Elim1Store]: treesize reduction 56, result has 13.8 percent of original size [2022-11-26 00:46:25,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 377 treesize of output 230 [2022-11-26 00:46:25,410 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:46:25,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 221 [2022-11-26 00:46:25,466 INFO L321 Elim1Store]: treesize reduction 67, result has 26.4 percent of original size [2022-11-26 00:46:25,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 245 treesize of output 226 [2022-11-26 00:46:25,497 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-26 00:46:25,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-11-26 00:46:25,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 154 [2022-11-26 00:46:25,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:46:25,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-26 00:46:25,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:46:25,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 58 treesize of output 20 [2022-11-26 00:46:25,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-26 00:46:26,000 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-26 00:46:26,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-26 00:46:26,194 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:26,205 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 8 [2022-11-26 00:46:26,768 INFO L321 Elim1Store]: treesize reduction 53, result has 39.1 percent of original size [2022-11-26 00:46:26,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 49 [2022-11-26 00:46:26,800 INFO L321 Elim1Store]: treesize reduction 46, result has 35.2 percent of original size [2022-11-26 00:46:26,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 65 [2022-11-26 00:46:26,853 INFO L321 Elim1Store]: treesize reduction 47, result has 42.7 percent of original size [2022-11-26 00:46:26,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 89 treesize of output 108 [2022-11-26 00:46:26,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:27,283 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:27,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:46:28,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893642765] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:46:28,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [893547127] [2022-11-26 00:46:28,299 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-26 00:46:28,299 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:46:28,299 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:46:28,300 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:46:28,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:46:28,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:46:28,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:46:28,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,556 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-26 00:46:28,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-26 00:46:28,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,703 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-26 00:46:28,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-26 00:46:28,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,799 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-26 00:46:28,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-26 00:46:28,816 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:28,820 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:28,830 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:28,833 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:28,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,855 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,864 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:28,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,895 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:28,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:28,907 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:28,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:28,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:28,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:28,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:29,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:29,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:29,135 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:29,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:29,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:29,149 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:29,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:29,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:29,278 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:29,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:29,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:29,292 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:29,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:29,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:29,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:29,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:29,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:29,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:29,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:29,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:30,395 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 27 for LOIs [2022-11-26 00:46:30,399 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 39 for LOIs [2022-11-26 00:46:30,416 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 34 for LOIs [2022-11-26 00:46:30,454 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 42 for LOIs [2022-11-26 00:46:30,500 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:46:34,659 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2226#(and (= |~#drvlist~0.offset| 0) (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:46:34,659 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:46:34,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:46:34,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2022-11-26 00:46:34,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090527021] [2022-11-26 00:46:34,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:46:34,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-26 00:46:34,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:34,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-26 00:46:34,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=4048, Unknown=36, NotChecked=0, Total=4422 [2022-11-26 00:46:34,663 INFO L87 Difference]: Start difference. First operand 127 states and 167 transitions. Second operand has 43 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 31 states have internal predecessors, (44), 13 states have call successors, (13), 9 states have call predecessors, (13), 14 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-26 00:46:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:38,533 INFO L93 Difference]: Finished difference Result 239 states and 316 transitions. [2022-11-26 00:46:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-26 00:46:38,534 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 31 states have internal predecessors, (44), 13 states have call successors, (13), 9 states have call predecessors, (13), 14 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 38 [2022-11-26 00:46:38,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:38,535 INFO L225 Difference]: With dead ends: 239 [2022-11-26 00:46:38,535 INFO L226 Difference]: Without dead ends: 158 [2022-11-26 00:46:38,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2883 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=648, Invalid=6968, Unknown=40, NotChecked=0, Total=7656 [2022-11-26 00:46:38,538 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 285 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 149 mSolverCounterUnsat, 49 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 49 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:38,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 294 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 847 Invalid, 49 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:46:38,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-26 00:46:38,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 97. [2022-11-26 00:46:38,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 67 states have (on average 1.328358208955224) internal successors, (89), 73 states have internal predecessors, (89), 15 states have call successors, (15), 10 states have call predecessors, (15), 12 states have return successors, (19), 14 states have call predecessors, (19), 15 states have call successors, (19) [2022-11-26 00:46:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 123 transitions. [2022-11-26 00:46:38,564 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 123 transitions. Word has length 38 [2022-11-26 00:46:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:38,565 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 123 transitions. [2022-11-26 00:46:38,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 31 states have internal predecessors, (44), 13 states have call successors, (13), 9 states have call predecessors, (13), 14 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-26 00:46:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 123 transitions. [2022-11-26 00:46:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-26 00:46:38,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:38,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:38,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:46:38,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 00:46:38,774 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:46:38,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:38,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1497273319, now seen corresponding path program 1 times [2022-11-26 00:46:38,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:38,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994211886] [2022-11-26 00:46:38,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:38,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:38,841 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:46:38,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:38,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994211886] [2022-11-26 00:46:38,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994211886] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:46:38,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727431118] [2022-11-26 00:46:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:38,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:46:38,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:46:38,843 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:46:38,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:46:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:39,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:46:39,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:46:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:46:39,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:46:39,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727431118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:46:39,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:46:39,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2022-11-26 00:46:39,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671808387] [2022-11-26 00:46:39,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:46:39,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:46:39,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:39,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:46:39,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:46:39,055 INFO L87 Difference]: Start difference. First operand 97 states and 123 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-26 00:46:39,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:39,141 INFO L93 Difference]: Finished difference Result 185 states and 237 transitions. [2022-11-26 00:46:39,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:46:39,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2022-11-26 00:46:39,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:39,144 INFO L225 Difference]: With dead ends: 185 [2022-11-26 00:46:39,144 INFO L226 Difference]: Without dead ends: 105 [2022-11-26 00:46:39,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:46:39,145 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:39,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:46:39,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-26 00:46:39,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2022-11-26 00:46:39,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 72 states have (on average 1.3055555555555556) internal successors, (94), 77 states have internal predecessors, (94), 15 states have call successors, (15), 10 states have call predecessors, (15), 13 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-26 00:46:39,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 129 transitions. [2022-11-26 00:46:39,176 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 129 transitions. Word has length 42 [2022-11-26 00:46:39,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:39,178 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 129 transitions. [2022-11-26 00:46:39,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-26 00:46:39,178 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 129 transitions. [2022-11-26 00:46:39,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-26 00:46:39,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:39,187 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:39,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:46:39,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-26 00:46:39,394 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:46:39,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:39,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1110778976, now seen corresponding path program 1 times [2022-11-26 00:46:39,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:39,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657066268] [2022-11-26 00:46:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:39,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:41,003 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:46:41,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:41,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657066268] [2022-11-26 00:46:41,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657066268] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:46:41,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335435553] [2022-11-26 00:46:41,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:41,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:46:41,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:46:41,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:46:41,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:46:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:41,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-26 00:46:41,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:46:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:46:41,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:46:42,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2022-11-26 00:46:42,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2022-11-26 00:46:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-26 00:46:42,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335435553] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:46:42,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2128762880] [2022-11-26 00:46:42,244 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-26 00:46:42,244 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:46:42,245 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:46:42,245 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:46:42,245 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:46:42,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:46:42,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:46:42,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,517 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-26 00:46:42,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-26 00:46:42,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,636 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-26 00:46:42,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-26 00:46:42,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,723 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-26 00:46:42,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-26 00:46:42,750 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:42,755 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:42,765 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:42,769 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:46:42,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,792 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:42,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,804 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:42,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,829 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:42,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:42,839 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:42,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:42,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:42,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:42,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:43,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:43,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:43,045 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:43,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:43,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:43,056 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:43,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:43,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:43,180 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:43,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:43,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:46:43,209 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:46:43,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:43,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:43,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:43,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:43,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:43,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:43,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:43,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:46:45,317 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 27 for LOIs [2022-11-26 00:46:45,320 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 24 for LOIs [2022-11-26 00:46:45,356 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 34 for LOIs [2022-11-26 00:46:45,397 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 42 for LOIs [2022-11-26 00:46:45,437 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:46:50,205 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3568#(and (= |~#drvlist~0.offset| 0) (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:46:50,205 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:46:50,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:46:50,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 8] total 33 [2022-11-26 00:46:50,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404820423] [2022-11-26 00:46:50,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:46:50,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-26 00:46:50,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:50,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-26 00:46:50,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2848, Unknown=0, NotChecked=0, Total=3080 [2022-11-26 00:46:50,208 INFO L87 Difference]: Start difference. First operand 103 states and 129 transitions. Second operand has 33 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 28 states have internal predecessors, (74), 10 states have call successors, (17), 7 states have call predecessors, (17), 12 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2022-11-26 00:46:53,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:53,991 INFO L93 Difference]: Finished difference Result 284 states and 357 transitions. [2022-11-26 00:46:53,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-26 00:46:53,992 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 28 states have internal predecessors, (74), 10 states have call successors, (17), 7 states have call predecessors, (17), 12 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) Word has length 43 [2022-11-26 00:46:53,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:53,994 INFO L225 Difference]: With dead ends: 284 [2022-11-26 00:46:53,994 INFO L226 Difference]: Without dead ends: 180 [2022-11-26 00:46:53,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 99 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2383 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=862, Invalid=7694, Unknown=0, NotChecked=0, Total=8556 [2022-11-26 00:46:53,997 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 238 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:53,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 404 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:46:53,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-26 00:46:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 114. [2022-11-26 00:46:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 81 states have (on average 1.271604938271605) internal successors, (103), 86 states have internal predecessors, (103), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-26 00:46:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2022-11-26 00:46:54,021 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 43 [2022-11-26 00:46:54,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:54,022 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2022-11-26 00:46:54,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 28 states have internal predecessors, (74), 10 states have call successors, (17), 7 states have call predecessors, (17), 12 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2022-11-26 00:46:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2022-11-26 00:46:54,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-26 00:46:54,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:54,023 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:54,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:46:54,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:46:54,231 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:46:54,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:54,232 INFO L85 PathProgramCache]: Analyzing trace with hash -779276848, now seen corresponding path program 1 times [2022-11-26 00:46:54,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:54,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084831879] [2022-11-26 00:46:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:54,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:04,093 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:47:04,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:04,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084831879] [2022-11-26 00:47:04,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084831879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:47:04,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055556586] [2022-11-26 00:47:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:04,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:47:04,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:47:04,122 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:47:04,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:47:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:04,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 156 conjunts are in the unsatisfiable core [2022-11-26 00:47:04,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:47:04,623 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:47:04,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-26 00:47:04,821 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:05,244 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-26 00:47:05,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 281 [2022-11-26 00:47:05,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:47:05,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:47:05,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:47:06,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:06,199 INFO L321 Elim1Store]: treesize reduction 91, result has 31.6 percent of original size [2022-11-26 00:47:06,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 518 treesize of output 508 [2022-11-26 00:47:06,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:06,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:06,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:06,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:06,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 78 treesize of output 11 [2022-11-26 00:47:06,871 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-26 00:47:06,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2022-11-26 00:47:06,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:47:06,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:47:06,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:47:07,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:07,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 186 [2022-11-26 00:47:07,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:07,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:07,918 INFO L321 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2022-11-26 00:47:07,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 215 treesize of output 253 [2022-11-26 00:47:07,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:08,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:08,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:08,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:08,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 108 treesize of output 11 [2022-11-26 00:47:11,195 INFO L350 Elim1Store]: Elim1 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 483 treesize of output 355 [2022-11-26 00:47:12,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:47:12,462 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-26 00:47:12,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-26 00:47:12,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:12,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 23 treesize of output 28 [2022-11-26 00:47:12,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-26 00:47:12,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:12,746 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 4 [2022-11-26 00:47:12,751 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:13,322 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-26 00:47:13,322 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 39 [2022-11-26 00:47:13,360 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-26 00:47:13,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 44 [2022-11-26 00:47:13,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:13,417 INFO L321 Elim1Store]: treesize reduction 55, result has 32.9 percent of original size [2022-11-26 00:47:13,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 68 treesize of output 83 [2022-11-26 00:47:13,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:13,466 INFO L321 Elim1Store]: treesize reduction 53, result has 39.1 percent of original size [2022-11-26 00:47:13,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 40 treesize of output 66 [2022-11-26 00:47:13,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:47:13,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:47:13,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-11-26 00:47:13,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2022-11-26 00:47:13,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2022-11-26 00:47:13,758 INFO L350 Elim1Store]: Elim1 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 43 treesize of output 31 [2022-11-26 00:47:13,770 INFO L350 Elim1Store]: Elim1 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 35 treesize of output 23 [2022-11-26 00:47:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:13,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:47:15,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055556586] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:47:15,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2065580703] [2022-11-26 00:47:15,313 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-26 00:47:15,314 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:47:15,314 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:47:15,314 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:47:15,314 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:47:15,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:47:15,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:47:15,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,555 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-26 00:47:15,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-26 00:47:15,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,654 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-26 00:47:15,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-26 00:47:15,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,789 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-26 00:47:15,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-26 00:47:15,806 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:15,810 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:15,820 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:15,825 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:15,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,846 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:47:15,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,855 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:47:15,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,882 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:47:15,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:15,893 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:47:15,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:15,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:15,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:15,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:16,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:16,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:16,092 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:47:16,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:16,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:16,109 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:47:16,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:16,225 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:47:16,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:16,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:16,236 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:47:16,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:16,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:16,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:16,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:16,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:16,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:16,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:16,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:47:17,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:17,076 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:47:17,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-26 00:47:17,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:47:17,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:17,117 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:47:17,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-26 00:47:17,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:17,167 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:17,168 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 19 treesize of output 19 [2022-11-26 00:47:17,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:17,190 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:17,190 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 19 treesize of output 19 [2022-11-26 00:47:17,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:17,248 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:17,248 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 19 treesize of output 19 [2022-11-26 00:47:17,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:17,270 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:17,270 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 19 treesize of output 19 [2022-11-26 00:47:18,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:47:18,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:18,177 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:47:18,177 INFO L350 Elim1Store]: Elim1 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 192 treesize of output 191 [2022-11-26 00:47:18,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:18,204 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:47:18,204 INFO L350 Elim1Store]: Elim1 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 184 treesize of output 183 [2022-11-26 00:47:18,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:18,498 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:18,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 348 [2022-11-26 00:47:18,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:18,520 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:18,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 344 treesize of output 340 [2022-11-26 00:47:18,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:18,968 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:18,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 348 [2022-11-26 00:47:18,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:18,991 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:47:18,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 344 treesize of output 340 [2022-11-26 00:47:19,851 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 39 for LOIs [2022-11-26 00:47:19,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:47:19,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:47:19,881 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 41 for LOIs [2022-11-26 00:47:19,894 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 44 for LOIs [2022-11-26 00:47:19,925 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:19,936 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:19,963 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:19,974 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:47:20,004 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 61 for LOIs [2022-11-26 00:47:20,058 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:47:30,816 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4435#(and (= (+ 8 |ULTIMATE.start_foo_~me~1#1.offset|) |~#drvlist~0.offset|) (= |~#drvlist~0.offset| 0) (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |ULTIMATE.start_foo_~__mptr~7#1.base| |ULTIMATE.start_foo_~me~1#1.base|) (= |ULTIMATE.start_ldv_set_empty_#in~s#1.offset| |~#mutexes~0.offset|) (= |ULTIMATE.start_foo_~__mptr~7#1.offset| (select (select |#memory_$Pointer$.offset| |~#drvlist~0.base|) |~#drvlist~0.offset|)) (= |ULTIMATE.start_ldv_list_empty_~head#1.base| |ULTIMATE.start_ldv_list_empty_#in~head#1.base|) (= |ULTIMATE.start_ldv_list_empty_#res#1| |ULTIMATE.start_ldv_set_empty_#res#1|) (= (select (select |#memory_$Pointer$.base| |~#drvlist~0.base|) |~#drvlist~0.offset|) |ULTIMATE.start_foo_~__mptr~7#1.base|) (= |~#mutexes~0.base| 3) (= (ite (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_ldv_list_empty_~head#1.base|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|) (= |ULTIMATE.start_ldv_list_empty_~head#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_ldv_list_empty_~head#1.base|) |ULTIMATE.start_ldv_list_empty_~head#1.offset|))) 1 0) |ULTIMATE.start_ldv_list_empty_#res#1|) (= |ULTIMATE.start_ldv_set_empty_#res#1| 0) (= |~#mutexes~0.offset| 0) (= |~#mutexes~0.base| |ULTIMATE.start_ldv_set_empty_#in~s#1.base|) (= |ULTIMATE.start_ldv_set_empty_#in~s#1.offset| |ULTIMATE.start_ldv_set_empty_~s#1.offset|) (= |ULTIMATE.start_ldv_set_empty_~s#1.base| |ULTIMATE.start_ldv_list_empty_#in~head#1.base|) (= |ULTIMATE.start_foo_~__mptr~7#1.offset| (+ 8 |ULTIMATE.start_foo_~me~1#1.offset|)) (= |ULTIMATE.start_ldv_list_empty_#in~head#1.offset| |ULTIMATE.start_ldv_list_empty_~head#1.offset|) (= |#NULL.offset| 0) (= |ULTIMATE.start_ldv_set_empty_~s#1.offset| |ULTIMATE.start_ldv_list_empty_#in~head#1.offset|) (= |~#drvlist~0.base| |ULTIMATE.start_foo_~me~1#1.base|) (= |ULTIMATE.start_ldv_set_empty_~s#1.base| |ULTIMATE.start_ldv_set_empty_#in~s#1.base|) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:47:30,816 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:47:30,816 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:47:30,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 24] total 51 [2022-11-26 00:47:30,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998428060] [2022-11-26 00:47:30,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:47:30,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-26 00:47:30,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:30,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-26 00:47:30,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=5775, Unknown=75, NotChecked=0, Total=6162 [2022-11-26 00:47:30,820 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 51 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 40 states have internal predecessors, (60), 15 states have call successors, (16), 10 states have call predecessors, (16), 16 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-26 00:47:38,484 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 397 DAG size of output: 391 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:47:38,961 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse24 (@diff |c_old(#memory_$Pointer$.offset)| |c_#memory_$Pointer$.offset|))) (let ((.cse25 (select |c_#memory_$Pointer$.offset| .cse24))) (let ((.cse59 (store |c_old(#memory_$Pointer$.offset)| .cse24 .cse25))) (let ((.cse0 (@diff .cse59 |c_#memory_$Pointer$.offset|))) (let ((.cse2 (select |c_#memory_$Pointer$.offset| .cse0))) (let ((.cse18 (store .cse59 .cse0 .cse2)) (.cse37 (select (select |c_old(#memory_$Pointer$.base)| |c_ldv_list_add_#in~head.base|) |c_ldv_list_add_#in~head.offset|))) (let ((.cse7 (= |c_ldv_list_add_#in~new.base| |c_ldv_list_add_#in~head.base|)) (.cse45 (= .cse37 |c_ldv_list_add_#in~head.base|)) (.cse19 (@diff .cse18 |c_#memory_$Pointer$.offset|))) (let ((.cse20 (select |c_#memory_$Pointer$.offset| .cse19)) (.cse9 (select |c_#memory_$Pointer$.base| |c_ldv_list_add_#in~new.base|)) (.cse6 (= .cse37 |c_ldv_list_add_#in~new.base|)) (.cse13 (select |c_#memory_$Pointer$.offset| |c_ldv_list_add_#in~new.base|)) (.cse29 (not .cse45)) (.cse31 (not .cse7))) (and (or (= .cse0 |c_ldv_list_add_#in~head.base|) (let ((.cse3 (select |c_old(#memory_$Pointer$.offset)| .cse0))) (let ((.cse4 (@diff .cse3 .cse2))) (let ((.cse1 (select .cse2 .cse4))) (and (or (<= |c_ldv_list_add_#in~new.offset| .cse1) (= .cse2 .cse3)) (= .cse2 (store .cse3 .cse4 .cse1)))))) (= .cse0 |c_ldv_list_add_#in~new.base|)) (not (= |c_~#drvlist~0.base| 3)) (= c_ldv_list_add_~new.offset |c_ldv_list_add_#in~new.offset|) (= c_ldv_list_add_~head.base |c_ldv_list_add_#in~head.base|) (<= |c_~#drvlist~0.offset| 0) (= (select (select |c_old(#memory_$Pointer$.base)| c_ldv_list_add_~head.base) c_ldv_list_add_~head.offset) |c_ldv_list_add_#t~mem6.base|) (exists ((__ldv_list_add_~prev.base Int) (v_ArrVal_864 (Array Int Int)) (__ldv_list_add_~next.base Int) (v_ArrVal_868 (Array Int Int)) (__ldv_list_add_~next.offset Int) (v_ArrVal_870 (Array Int Int)) (v_ArrVal_863 (Array Int Int))) (let ((.cse5 (+ __ldv_list_add_~next.offset 4))) (and (= |c_#memory_$Pointer$.base| (store (store (store |c_old(#memory_$Pointer$.base)| __ldv_list_add_~next.base (store (select |c_old(#memory_$Pointer$.base)| __ldv_list_add_~next.base) .cse5 |c_ldv_list_add_#in~new.base|)) |c_ldv_list_add_#in~new.base| v_ArrVal_864) __ldv_list_add_~prev.base v_ArrVal_863)) (= (store (store (store |c_old(#memory_$Pointer$.offset)| __ldv_list_add_~next.base (store (select |c_old(#memory_$Pointer$.offset)| __ldv_list_add_~next.base) .cse5 |c_ldv_list_add_#in~new.offset|)) |c_ldv_list_add_#in~new.base| v_ArrVal_870) __ldv_list_add_~prev.base v_ArrVal_868) |c_#memory_$Pointer$.offset|) (<= __ldv_list_add_~prev.base |c_ldv_list_add_#in~head.base|)))) (= |c_#valid| |c_old(#valid)|) (= |c_~#mutexes~0.offset| 0) (= c_ldv_list_add_~head.offset |c_ldv_list_add_#in~head.offset|) (exists ((|v_ULTIMATE.start_foo_~me~0#1.base_BEFORE_CALL_56| Int)) (and (= (select |c_#valid| |v_ULTIMATE.start_foo_~me~0#1.base_BEFORE_CALL_56|) 1) (not (= |v_ULTIMATE.start_foo_~me~0#1.base_BEFORE_CALL_56| 4)))) (or .cse6 .cse7 (let ((.cse17 (select |c_old(#memory_$Pointer$.offset)| |c_ldv_list_add_#in~new.base|)) (.cse12 (select |c_old(#memory_$Pointer$.base)| |c_ldv_list_add_#in~new.base|))) (let ((.cse11 (@diff .cse12 .cse9)) (.cse16 (@diff .cse17 .cse13))) (let ((.cse14 (store .cse17 .cse16 (select .cse13 .cse16))) (.cse8 (store .cse12 .cse11 (select .cse9 .cse11)))) (let ((.cse10 (@diff .cse8 .cse9)) (.cse15 (@diff .cse14 .cse13))) (and (or (= .cse8 .cse9) (<= |c_ldv_list_add_#in~new.offset| .cse10)) (or (<= |c_ldv_list_add_#in~new.offset| .cse11) (= .cse12 .cse9)) (or (= .cse13 .cse14) (<= |c_ldv_list_add_#in~new.offset| .cse15)) (or (<= |c_ldv_list_add_#in~new.offset| .cse16) (= .cse13 .cse17)) (= (store .cse8 .cse10 (select .cse9 .cse10)) .cse9) (= .cse13 (store .cse14 .cse15 (select .cse13 .cse15))))))))) (= |c_#memory_$Pointer$.offset| (store .cse18 .cse19 .cse20)) (= |c_~#drvlist~0.offset| 0) (= (select |c_#valid| 4) 1) (<= |c_~#mutexes~0.base| 3) (or (= .cse19 |c_ldv_list_add_#in~new.base|) (= .cse19 |c_ldv_list_add_#in~head.base|) (let ((.cse21 (select |c_old(#memory_$Pointer$.offset)| .cse19))) (let ((.cse23 (@diff .cse21 .cse20))) (let ((.cse22 (select .cse20 .cse23))) (and (or (= .cse20 .cse21) (<= |c_ldv_list_add_#in~new.offset| .cse22)) (= (store .cse21 .cse23 .cse22) .cse20)))))) (= c_ldv_list_add_~new.base |c_ldv_list_add_#in~new.base|) (or (= |c_ldv_list_add_#in~new.base| .cse24) (= .cse24 |c_ldv_list_add_#in~head.base|) (let ((.cse26 (select |c_old(#memory_$Pointer$.offset)| .cse24))) (let ((.cse27 (@diff .cse26 .cse25))) (let ((.cse28 (select .cse25 .cse27))) (and (= .cse25 (store .cse26 .cse27 .cse28)) (or (= .cse25 .cse26) (<= |c_ldv_list_add_#in~new.offset| .cse28))))))) (= 3 |c_~#mutexes~0.base|) (= |c_~#drvlist~0.base| 4) (let ((.cse47 (select |c_#memory_$Pointer$.base| |c_ldv_list_add_#in~head.base|))) (let ((.cse30 (= (select .cse47 |c_ldv_list_add_#in~head.offset|) |c_ldv_list_add_#in~new.base|))) (or (and .cse29 (let ((.cse35 (select |c_#memory_$Pointer$.base| .cse37))) (or (and .cse30 .cse31 (or (exists ((v_DerPreprocessor_74 (Array Int Int))) (and (exists ((v_DerPreprocessor_73 (Array Int Int)) (v_DerPreprocessor_72 (Array Int Int))) (let ((.cse38 (store (store (store (store (store (store |c_#memory_$Pointer$.base| .cse37 v_DerPreprocessor_72) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_73) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_74) .cse37 v_DerPreprocessor_72) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_73) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_74))) (let ((.cse32 (select .cse38 .cse37)) (.cse33 (select .cse38 |c_ldv_list_add_#in~new.base|))) (and (= .cse32 v_DerPreprocessor_72) (= .cse9 .cse33) (exists ((v_prenex_76 (Array Int Int)) (v_prenex_75 (Array Int Int)) (v_prenex_74 (Array Int Int))) (let ((.cse36 (store (store (store (store (store (store .cse38 .cse37 v_prenex_74) |c_ldv_list_add_#in~new.base| v_prenex_75) |c_ldv_list_add_#in~head.base| v_prenex_76) .cse37 v_prenex_74) |c_ldv_list_add_#in~new.base| v_prenex_75) |c_ldv_list_add_#in~head.base| v_prenex_76))) (let ((.cse34 (select .cse36 .cse37))) (and (= .cse34 .cse35) (= |c_ldv_list_add_#in~new.base| (select v_prenex_76 |c_ldv_list_add_#in~head.offset|)) (= .cse34 .cse32) (= (select .cse36 |c_ldv_list_add_#in~new.base|) .cse33) (= .cse34 v_prenex_74))))))))) (= (select v_DerPreprocessor_74 |c_ldv_list_add_#in~head.offset|) |c_ldv_list_add_#in~new.base|))) (and .cse6 (exists ((v_DerPreprocessor_73 (Array Int Int)) (v_prenex_72 (Array Int Int)) (v_DerPreprocessor_74 (Array Int Int)) (v_prenex_71 (Array Int Int)) (v_DerPreprocessor_72 (Array Int Int)) (v_prenex_73 (Array Int Int))) (let ((.cse39 (store (store (store (store (store (store |c_#memory_$Pointer$.base| .cse37 v_DerPreprocessor_72) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_73) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_74) .cse37 v_DerPreprocessor_72) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_73) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_74))) (let ((.cse40 (select .cse39 |c_ldv_list_add_#in~new.base|)) (.cse41 (store (store (store (store (store (store .cse39 .cse37 v_prenex_71) |c_ldv_list_add_#in~new.base| v_prenex_72) |c_ldv_list_add_#in~head.base| v_prenex_73) .cse37 v_prenex_71) |c_ldv_list_add_#in~new.base| v_prenex_72) |c_ldv_list_add_#in~head.base| v_prenex_73))) (and (= (select v_prenex_73 |c_ldv_list_add_#in~head.offset|) |c_ldv_list_add_#in~new.base|) (= (select v_DerPreprocessor_74 |c_ldv_list_add_#in~head.offset|) |c_ldv_list_add_#in~new.base|) (= (select .cse39 .cse37) v_DerPreprocessor_72) (= .cse9 .cse40) (= .cse40 (select .cse41 |c_ldv_list_add_#in~new.base|)) (= v_prenex_71 (select .cse41 .cse37))))))))) (and .cse30 (or (exists ((v_DerPreprocessor_66 (Array Int Int)) (v_DerPreprocessor_67 (Array Int Int)) (v_DerPreprocessor_68 (Array Int Int))) (let ((.cse42 (store (store (store (store (store (store |c_#memory_$Pointer$.base| .cse37 v_DerPreprocessor_66) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_67) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_68) .cse37 v_DerPreprocessor_66) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_67) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_68))) (let ((.cse43 (select .cse42 |c_ldv_list_add_#in~new.base|))) (and (= .cse35 (select .cse42 .cse37)) (= .cse43 .cse9) (= .cse43 v_DerPreprocessor_67))))) (exists ((v_prenex_93 (Array Int Int)) (v_prenex_92 (Array Int Int)) (v_prenex_91 (Array Int Int))) (let ((.cse44 (store (store (store (store (store (store |c_#memory_$Pointer$.base| .cse37 v_prenex_91) |c_ldv_list_add_#in~new.base| v_prenex_92) |c_ldv_list_add_#in~head.base| v_prenex_93) .cse37 v_prenex_91) |c_ldv_list_add_#in~new.base| v_prenex_92) |c_ldv_list_add_#in~head.base| v_prenex_93))) (and (= .cse35 (select .cse44 .cse37)) (= |c_ldv_list_add_#in~new.base| (select v_prenex_93 |c_ldv_list_add_#in~head.offset|)) (= (select .cse44 |c_ldv_list_add_#in~new.base|) v_prenex_92))))) .cse7)))) (and .cse45 (or (and .cse30 .cse31) (and .cse30 (exists ((v_DerPreprocessor_75 (Array Int Int)) (v_DerPreprocessor_76 (Array Int Int))) (let ((.cse46 (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_$Pointer$.base| .cse37 v_DerPreprocessor_75) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_76) |c_ldv_list_add_#in~head.base| .cse47) .cse37 v_DerPreprocessor_75) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_76) |c_ldv_list_add_#in~head.base| .cse47) .cse37 v_DerPreprocessor_75) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_76) |c_ldv_list_add_#in~head.base| .cse47) .cse37 v_DerPreprocessor_75) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_76) |c_ldv_list_add_#in~head.base| .cse47) .cse37 v_DerPreprocessor_75) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_76) |c_ldv_list_add_#in~head.base| .cse47) .cse37 v_DerPreprocessor_75) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_76) |c_ldv_list_add_#in~head.base| .cse47))) (and (= (select .cse46 |c_ldv_list_add_#in~new.base|) v_DerPreprocessor_76) (= v_DerPreprocessor_75 (select .cse46 .cse37))))))))))) (let ((.cse48 (select |c_#memory_$Pointer$.offset| .cse37)) (.cse51 (= (select (select |c_#memory_$Pointer$.offset| |c_ldv_list_add_#in~head.base|) |c_ldv_list_add_#in~head.offset|) |c_ldv_list_add_#in~new.offset|))) (or (and (or (and (exists ((v_DerPreprocessor_51 (Array Int Int)) (v_DerPreprocessor_52 (Array Int Int)) (v_DerPreprocessor_50 (Array Int Int))) (let ((.cse49 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse37 v_DerPreprocessor_50) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_51) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_52) .cse37 v_DerPreprocessor_50) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_51) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_52))) (and (= .cse48 (select .cse49 .cse37)) (= v_DerPreprocessor_51 (select .cse49 |c_ldv_list_add_#in~new.base|)) (= (select v_DerPreprocessor_52 |c_ldv_list_add_#in~head.offset|) |c_ldv_list_add_#in~new.offset|)))) (exists ((v_DerPreprocessor_48 (Array Int Int)) (v_DerPreprocessor_49 (Array Int Int)) (v_DerPreprocessor_47 (Array Int Int))) (let ((.cse50 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse37 v_DerPreprocessor_47) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_48) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_49) .cse37 v_DerPreprocessor_47) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_48) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_49))) (and (= .cse48 (select .cse50 .cse37)) (= |c_ldv_list_add_#in~new.offset| (select v_DerPreprocessor_49 |c_ldv_list_add_#in~head.offset|)) (= (select .cse50 |c_ldv_list_add_#in~new.base|) v_DerPreprocessor_48))))) .cse6) .cse7 .cse51) (and (or (and (exists ((v_DerPreprocessor_53 (Array Int Int)) (v_DerPreprocessor_54 (Array Int Int)) (v_DerPreprocessor_59 (Array Int Int))) (let ((.cse52 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse37 v_DerPreprocessor_53) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_54) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_59) .cse37 v_DerPreprocessor_53) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_54) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_59))) (and (= .cse13 (select .cse52 |c_ldv_list_add_#in~new.base|)) (= v_DerPreprocessor_53 (select .cse52 .cse37)) (= |c_ldv_list_add_#in~new.offset| (select v_DerPreprocessor_59 |c_ldv_list_add_#in~head.offset|))))) .cse45 .cse51) (and .cse29 (= (select .cse48 |c_ldv_list_add_#in~head.offset|) |c_ldv_list_add_#in~new.offset|) (exists ((v_DerPreprocessor_53 (Array Int Int)) (v_DerPreprocessor_54 (Array Int Int)) (v_DerPreprocessor_56 (Array Int Int)) (v_DerPreprocessor_57 (Array Int Int)) (v_DerPreprocessor_58 (Array Int Int))) (let ((.cse55 (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse37 v_DerPreprocessor_56) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_57) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_58) .cse37 v_DerPreprocessor_56) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_57) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_58) .cse37 v_DerPreprocessor_56) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_57) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_58) .cse37 v_DerPreprocessor_56) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_57) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_58))) (let ((.cse53 (select .cse55 .cse37)) (.cse54 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse37 v_DerPreprocessor_53) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_54) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_58) .cse37 v_DerPreprocessor_53) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_54) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_58))) (and (= v_DerPreprocessor_56 .cse53) (= (select .cse54 |c_ldv_list_add_#in~new.base|) (select .cse55 |c_ldv_list_add_#in~new.base|)) (= .cse53 (select .cse54 .cse37)))))) .cse51) (and (exists ((v_DerPreprocessor_62 (Array Int Int)) (v_DerPreprocessor_53 (Array Int Int)) (v_DerPreprocessor_54 (Array Int Int)) (v_DerPreprocessor_60 (Array Int Int)) (v_DerPreprocessor_61 (Array Int Int))) (let ((.cse57 (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse37 v_DerPreprocessor_60) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_61) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_62) .cse37 v_DerPreprocessor_60) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_61) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_62) .cse37 v_DerPreprocessor_60) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_61) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_62) .cse37 v_DerPreprocessor_60) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_61) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_62))) (let ((.cse56 (select .cse57 .cse37)) (.cse58 (store (store (store (store (store (store |c_#memory_$Pointer$.offset| .cse37 v_DerPreprocessor_53) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_54) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_62) .cse37 v_DerPreprocessor_53) |c_ldv_list_add_#in~new.base| v_DerPreprocessor_54) |c_ldv_list_add_#in~head.base| v_DerPreprocessor_62))) (and (= .cse56 v_DerPreprocessor_60) (= (select .cse57 |c_ldv_list_add_#in~new.base|) (select .cse58 |c_ldv_list_add_#in~new.base|)) (= .cse56 (select .cse58 .cse37)))))) .cse29 .cse51)) .cse31)))))))))))) is different from true [2022-11-26 00:47:45,991 WARN L233 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 389 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:48:02,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:02,749 INFO L93 Difference]: Finished difference Result 322 states and 414 transitions. [2022-11-26 00:48:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-11-26 00:48:02,750 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 40 states have internal predecessors, (60), 15 states have call successors, (16), 10 states have call predecessors, (16), 16 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 47 [2022-11-26 00:48:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:02,752 INFO L225 Difference]: With dead ends: 322 [2022-11-26 00:48:02,752 INFO L226 Difference]: Without dead ends: 319 [2022-11-26 00:48:02,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 144 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6066 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=1547, Invalid=19153, Unknown=184, NotChecked=286, Total=21170 [2022-11-26 00:48:02,758 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 679 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 440 mSolverCounterUnsat, 150 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 2730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 150 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:02,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 677 Invalid, 2730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 2139 Invalid, 150 Unknown, 1 Unchecked, 9.0s Time] [2022-11-26 00:48:02,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-26 00:48:02,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 149. [2022-11-26 00:48:02,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 113 states have internal predecessors, (138), 20 states have call successors, (20), 14 states have call predecessors, (20), 19 states have return successors, (33), 23 states have call predecessors, (33), 20 states have call successors, (33) [2022-11-26 00:48:02,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 191 transitions. [2022-11-26 00:48:02,797 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 191 transitions. Word has length 47 [2022-11-26 00:48:02,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:02,798 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 191 transitions. [2022-11-26 00:48:02,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 33 states have (on average 1.8181818181818181) internal successors, (60), 40 states have internal predecessors, (60), 15 states have call successors, (16), 10 states have call predecessors, (16), 16 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-26 00:48:02,798 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 191 transitions. [2022-11-26 00:48:02,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-26 00:48:02,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:02,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:02,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:48:03,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:48:03,005 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:48:03,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:03,006 INFO L85 PathProgramCache]: Analyzing trace with hash -177317219, now seen corresponding path program 1 times [2022-11-26 00:48:03,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:03,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45626515] [2022-11-26 00:48:03,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:03,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-26 00:48:08,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:08,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45626515] [2022-11-26 00:48:08,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45626515] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:48:08,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128319165] [2022-11-26 00:48:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:08,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:48:08,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:48:08,292 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:48:08,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:48:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:08,533 WARN L261 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 347 conjunts are in the unsatisfiable core [2022-11-26 00:48:08,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:48:08,846 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:48:08,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 33 [2022-11-26 00:48:09,118 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:48:09,128 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:48:09,639 INFO L321 Elim1Store]: treesize reduction 15, result has 54.5 percent of original size [2022-11-26 00:48:09,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 200 treesize of output 146 [2022-11-26 00:48:09,730 INFO L321 Elim1Store]: treesize reduction 44, result has 44.3 percent of original size [2022-11-26 00:48:09,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 138 treesize of output 129 [2022-11-26 00:48:09,816 INFO L321 Elim1Store]: treesize reduction 122, result has 22.3 percent of original size [2022-11-26 00:48:09,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 103 treesize of output 155 [2022-11-26 00:48:09,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:48:09,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:48:10,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2022-11-26 00:48:10,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2022-11-26 00:48:10,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:48:10,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:10,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:10,447 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:48:10,469 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:48:10,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 174 [2022-11-26 00:48:10,683 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-26 00:48:10,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 23 treesize of output 3 [2022-11-26 00:48:10,758 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-26 00:48:10,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 23 treesize of output 3 [2022-11-26 00:48:10,786 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-26 00:48:10,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 23 treesize of output 3 [2022-11-26 00:48:10,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:48:11,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 200 [2022-11-26 00:48:11,215 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-26 00:48:11,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 7 [2022-11-26 00:48:11,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:11,402 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:48:11,459 INFO L321 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2022-11-26 00:48:11,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 41 [2022-11-26 00:48:11,477 INFO L321 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2022-11-26 00:48:11,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 22 [2022-11-26 00:48:11,699 INFO L321 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2022-11-26 00:48:11,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 81 [2022-11-26 00:48:11,820 INFO L321 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2022-11-26 00:48:11,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 33 [2022-11-26 00:48:11,968 INFO L321 Elim1Store]: treesize reduction 61, result has 7.6 percent of original size [2022-11-26 00:48:11,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 222 treesize of output 239 [2022-11-26 00:48:12,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:12,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 59 [2022-11-26 00:48:12,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:12,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:12,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2022-11-26 00:48:12,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:12,552 INFO L321 Elim1Store]: treesize reduction 128, result has 7.9 percent of original size [2022-11-26 00:48:12,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 149 treesize of output 173 [2022-11-26 00:48:12,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:12,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-26 00:48:12,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-26 00:48:12,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:12,894 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-26 00:48:12,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-26 00:48:12,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 70 treesize of output 57 [2022-11-26 00:48:12,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:13,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 74 treesize of output 71 [2022-11-26 00:48:13,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:13,145 INFO L321 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-26 00:48:13,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 158 [2022-11-26 00:48:13,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:48:13,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:13,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 73 treesize of output 70 [2022-11-26 00:48:13,514 INFO L321 Elim1Store]: treesize reduction 59, result has 35.2 percent of original size [2022-11-26 00:48:13,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 78 [2022-11-26 00:48:13,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 98 [2022-11-26 00:51:46,996 WARN L233 SmtUtils]: Spent 3.53m on a formula simplification. DAG size of input: 297 DAG size of output: 129 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:52:12,183 WARN L233 SmtUtils]: Spent 24.58s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:52:12,636 INFO L350 Elim1Store]: Elim1 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 451 treesize of output 367 [2022-11-26 00:52:12,651 INFO L350 Elim1Store]: Elim1 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 323 treesize of output 295 [2022-11-26 00:52:17,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-26 00:52:18,671 INFO L321 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2022-11-26 00:52:18,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 27 treesize of output 29 [2022-11-26 00:52:19,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:19,391 INFO L321 Elim1Store]: treesize reduction 37, result has 27.5 percent of original size [2022-11-26 00:52:19,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 63 [2022-11-26 00:52:19,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:19,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:19,409 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:52:19,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 68 [2022-11-26 00:52:19,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:19,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2022-11-26 00:52:19,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:19,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2022-11-26 00:52:19,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:52:20,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:20,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:20,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:20,192 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:52:20,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 88 treesize of output 43 [2022-11-26 00:52:20,268 INFO L321 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2022-11-26 00:52:20,269 INFO L350 Elim1Store]: Elim1 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 4 case distinctions, treesize of input 48 treesize of output 50 [2022-11-26 00:52:20,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:20,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-26 00:52:20,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:52:20,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 21 treesize of output 15 [2022-11-26 00:52:21,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:21,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:22,382 INFO L321 Elim1Store]: treesize reduction 76, result has 47.6 percent of original size [2022-11-26 00:52:22,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 137 treesize of output 153 [2022-11-26 00:52:22,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:22,550 INFO L321 Elim1Store]: treesize reduction 40, result has 31.0 percent of original size [2022-11-26 00:52:22,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 101 treesize of output 112 [2022-11-26 00:52:22,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:52:23,116 INFO L321 Elim1Store]: treesize reduction 133, result has 40.9 percent of original size [2022-11-26 00:52:23,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 209 [2022-11-26 00:52:23,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:23,525 INFO L321 Elim1Store]: treesize reduction 132, result has 26.7 percent of original size [2022-11-26 00:52:23,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 93 treesize of output 132 [2022-11-26 00:52:23,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:23,676 INFO L321 Elim1Store]: treesize reduction 60, result has 23.1 percent of original size [2022-11-26 00:52:23,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 139 [2022-11-26 00:52:23,943 INFO L321 Elim1Store]: treesize reduction 102, result has 25.5 percent of original size [2022-11-26 00:52:23,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 89 treesize of output 123 [2022-11-26 00:52:24,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 11 [2022-11-26 00:52:24,955 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:52:25,163 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:52:25,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 72 [2022-11-26 00:52:26,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 107 [2022-11-26 00:52:26,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:26,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:26,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:26,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:26,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 3 [2022-11-26 00:52:26,519 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:52:26,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 107 [2022-11-26 00:52:26,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:26,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:26,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:26,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:26,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 3 [2022-11-26 00:52:27,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:27,254 INFO L321 Elim1Store]: treesize reduction 86, result has 30.6 percent of original size [2022-11-26 00:52:27,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 227 treesize of output 334 [2022-11-26 00:52:29,963 INFO L321 Elim1Store]: treesize reduction 251, result has 27.7 percent of original size [2022-11-26 00:52:29,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 353 treesize of output 580 [2022-11-26 00:52:31,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:31,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:31,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:31,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2022-11-26 00:52:31,225 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-26 00:52:31,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 59 treesize of output 39 [2022-11-26 00:52:32,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:32,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:32,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:32,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:32,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:32,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:32,526 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:32,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 7 [2022-11-26 00:52:32,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:32,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:32,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:32,722 INFO L321 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2022-11-26 00:52:32,723 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 2881 treesize of output 2269 [2022-11-26 00:52:33,625 INFO L321 Elim1Store]: treesize reduction 212, result has 10.9 percent of original size [2022-11-26 00:52:33,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 1362 treesize of output 1101 [2022-11-26 00:52:34,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:34,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:34,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:34,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:34,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:34,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:34,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 217 [2022-11-26 00:52:35,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:35,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:35,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:35,271 INFO L321 Elim1Store]: treesize reduction 180, result has 12.2 percent of original size [2022-11-26 00:52:35,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 237 treesize of output 337 [2022-11-26 00:52:35,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:35,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:36,185 INFO L321 Elim1Store]: treesize reduction 245, result has 13.7 percent of original size [2022-11-26 00:52:36,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 1314 treesize of output 1073 [2022-11-26 00:52:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:37,373 INFO L321 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2022-11-26 00:52:37,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2022-11-26 00:52:37,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:37,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:37,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:37,755 INFO L321 Elim1Store]: treesize reduction 81, result has 30.8 percent of original size [2022-11-26 00:52:37,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 109 [2022-11-26 00:52:37,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:38,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:38,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:38,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:38,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:38,046 INFO L321 Elim1Store]: treesize reduction 202, result has 0.5 percent of original size [2022-11-26 00:52:38,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 129 treesize of output 337 [2022-11-26 00:52:38,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-26 00:52:39,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:39,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:39,398 INFO L321 Elim1Store]: treesize reduction 106, result has 28.9 percent of original size [2022-11-26 00:52:39,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 369 [2022-11-26 00:52:40,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:40,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:40,437 INFO L321 Elim1Store]: treesize reduction 143, result has 12.8 percent of original size [2022-11-26 00:52:40,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 155 treesize of output 167 [2022-11-26 00:52:41,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-26 00:52:42,140 INFO L321 Elim1Store]: treesize reduction 96, result has 25.0 percent of original size [2022-11-26 00:52:42,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 105 [2022-11-26 00:52:42,774 INFO L321 Elim1Store]: treesize reduction 208, result has 21.2 percent of original size [2022-11-26 00:52:42,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 393 [2022-11-26 00:52:43,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:43,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:43,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:52:43,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:43,601 INFO L321 Elim1Store]: treesize reduction 244, result has 7.9 percent of original size [2022-11-26 00:52:43,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 851 treesize of output 683 [2022-11-26 00:52:44,649 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-26 00:52:44,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 44 [2022-11-26 00:52:45,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2974 treesize of output 2577 [2022-11-26 00:52:46,585 INFO L321 Elim1Store]: treesize reduction 168, result has 10.6 percent of original size [2022-11-26 00:52:46,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 290 treesize of output 435 [2022-11-26 00:52:47,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 3086 treesize of output 2701 [2022-11-26 00:52:50,476 INFO L321 Elim1Store]: treesize reduction 161, result has 14.4 percent of original size [2022-11-26 00:52:50,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 403 treesize of output 567 [2022-11-26 00:52:51,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:52:51,435 INFO L321 Elim1Store]: treesize reduction 212, result has 11.3 percent of original size [2022-11-26 00:52:51,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 122 treesize of output 197 [2022-11-26 00:52:52,407 INFO L321 Elim1Store]: treesize reduction 56, result has 67.6 percent of original size [2022-11-26 00:52:52,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 489 treesize of output 496 [2022-11-26 00:52:52,902 INFO L321 Elim1Store]: treesize reduction 136, result has 0.7 percent of original size [2022-11-26 00:52:52,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 330 treesize of output 82 [2022-11-26 00:52:53,112 INFO L321 Elim1Store]: treesize reduction 45, result has 15.1 percent of original size [2022-11-26 00:52:53,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 374 treesize of output 319 [2022-11-26 00:52:57,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1138 treesize of output 978 [2022-11-26 00:52:58,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 3463 treesize of output 3018 [2022-11-26 00:53:03,661 INFO L321 Elim1Store]: treesize reduction 177, result has 5.9 percent of original size [2022-11-26 00:53:03,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 777 treesize of output 865 [2022-11-26 00:53:05,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:53:05,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:53:05,744 INFO L321 Elim1Store]: treesize reduction 59, result has 10.6 percent of original size [2022-11-26 00:53:05,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 608 treesize of output 522 [2022-11-26 00:53:08,422 INFO L321 Elim1Store]: treesize reduction 161, result has 14.4 percent of original size [2022-11-26 00:53:08,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1061 treesize of output 1105 [2022-11-26 00:53:09,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:53:09,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:53:09,543 INFO L321 Elim1Store]: treesize reduction 136, result has 22.7 percent of original size [2022-11-26 00:53:09,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 652 treesize of output 692 [2022-11-26 00:53:09,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:53:09,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:53:09,783 INFO L321 Elim1Store]: treesize reduction 204, result has 9.7 percent of original size [2022-11-26 00:53:09,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 219 treesize of output 157 [2022-11-26 00:53:10,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2936 treesize of output 2617 [2022-11-26 00:53:12,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1306 treesize of output 1048 [2022-11-26 00:53:12,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1103 treesize of output 915 [2022-11-26 00:53:14,226 INFO L321 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2022-11-26 00:53:14,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 180 treesize of output 156 [2022-11-26 00:53:14,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 103 [2022-11-26 00:53:14,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-11-26 00:53:14,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 216 treesize of output 178 [2022-11-26 00:53:14,861 INFO L321 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2022-11-26 00:53:14,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 2691 treesize of output 2279 [2022-11-26 00:53:14,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2284 treesize of output 1916 [2022-11-26 00:53:19,534 INFO L321 Elim1Store]: treesize reduction 88, result has 11.1 percent of original size [2022-11-26 00:53:19,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 4168 treesize of output 3312 [2022-11-26 00:53:19,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3506 treesize of output 2866 [2022-11-26 00:53:21,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 690 treesize of output 626 [2022-11-26 00:53:21,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 601 treesize of output 541 [2022-11-26 00:53:22,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1100 treesize of output 996 [2022-11-26 00:53:22,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1009 treesize of output 933 [2022-11-26 00:53:50,721 WARN L233 SmtUtils]: Spent 15.39s on a formula simplification. DAG size of input: 1063 DAG size of output: 249 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:53:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:53:58,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:54:04,537 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse11 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset|))) (let ((.cse3 (+ 8 |c_ULTIMATE.start_foo_~me~1#1.offset|)) (.cse8 (+ |c_ULTIMATE.start_ldv_set_add_~le~0#1.offset| 8)) (.cse9 (+ 4 .cse11)) (.cse7 (+ |c_ULTIMATE.start_ldv_set_add_~le~0#1.offset| 4))) (and (forall ((v_ArrVal_1192 (Array Int Int)) (|v___ldv_list_add_#in~next.base_27| Int) (v_ArrVal_1194 (Array Int Int)) (v_ArrVal_1193 (Array Int Int))) (let ((.cse0 (let ((.cse10 (store |c_#memory_$Pointer$.offset| |v___ldv_list_add_#in~next.base_27| (store (select |c_#memory_$Pointer$.offset| |v___ldv_list_add_#in~next.base_27|) .cse9 .cse7)))) (store (store .cse10 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| (store (store (select .cse10 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|) .cse7 .cse11) .cse8 |c_ULTIMATE.start_ldv_set_add_~s#1.offset|)) |c_ULTIMATE.start_ldv_set_add_~s#1.base| (store (select (store .cse10 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| v_ArrVal_1193) |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset| .cse7)))) (.cse5 (store (let ((.cse6 (store |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27| (store (select |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27|) .cse9 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|)))) (store .cse6 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| (store (store (select .cse6 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|) .cse7 |v___ldv_list_add_#in~next.base_27|) .cse8 |c_ULTIMATE.start_ldv_set_add_~s#1.base|))) |c_ULTIMATE.start_ldv_set_add_~s#1.base| (store (select (store (store |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27| v_ArrVal_1194) |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| v_ArrVal_1192) |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset| |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|)))) (let ((.cse1 (select (select .cse5 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)) (.cse2 (+ (select (select .cse0 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) (- 4)))) (let ((.cse4 (select (select .cse5 .cse1) .cse2))) (or (not (= (+ (select (select .cse0 .cse1) .cse2) 8) (select (select .cse0 |c_ULTIMATE.start_foo_~me~1#1.base|) .cse3))) (= |c_~#drvlist~0.base| .cse4) (not (= (select (select .cse5 |c_ULTIMATE.start_foo_~me~1#1.base|) .cse3) .cse4))))))) (forall ((v_ArrVal_1192 (Array Int Int)) (|v___ldv_list_add_#in~next.base_27| Int) (v_ArrVal_1194 (Array Int Int)) (v_ArrVal_1193 (Array Int Int))) (let ((.cse13 (let ((.cse18 (store |c_#memory_$Pointer$.offset| |v___ldv_list_add_#in~next.base_27| (store (select |c_#memory_$Pointer$.offset| |v___ldv_list_add_#in~next.base_27|) .cse9 .cse7)))) (store (store .cse18 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| (store (store (select .cse18 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|) .cse7 .cse11) .cse8 |c_ULTIMATE.start_ldv_set_add_~s#1.offset|)) |c_ULTIMATE.start_ldv_set_add_~s#1.base| (store (select (store .cse18 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| v_ArrVal_1193) |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset| .cse7)))) (.cse14 (store (let ((.cse17 (store |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27| (store (select |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27|) .cse9 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|)))) (store .cse17 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| (store (store (select .cse17 |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|) .cse7 |v___ldv_list_add_#in~next.base_27|) .cse8 |c_ULTIMATE.start_ldv_set_add_~s#1.base|))) |c_ULTIMATE.start_ldv_set_add_~s#1.base| (store (select (store (store |c_#memory_$Pointer$.base| |v___ldv_list_add_#in~next.base_27| v_ArrVal_1194) |c_ULTIMATE.start_ldv_set_add_~le~0#1.base| v_ArrVal_1192) |c_ULTIMATE.start_ldv_set_add_~s#1.base|) |c_ULTIMATE.start_ldv_set_add_~s#1.offset| |c_ULTIMATE.start_ldv_set_add_~le~0#1.base|)))) (let ((.cse15 (select (select .cse14 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)) (.cse16 (+ (select (select .cse13 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) (- 4)))) (let ((.cse12 (+ (select (select .cse13 .cse15) .cse16) 8))) (or (not (= .cse12 (select (select .cse13 |c_ULTIMATE.start_foo_~me~1#1.base|) .cse3))) (= .cse12 |c_~#drvlist~0.offset|) (not (= (select (select .cse14 |c_ULTIMATE.start_foo_~me~1#1.base|) .cse3) (select (select .cse14 .cse15) .cse16))))))))))) is different from false [2022-11-26 00:54:04,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128319165] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:54:04,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1415013185] [2022-11-26 00:54:04,574 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-26 00:54:04,575 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:54:04,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:54:04,575 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:54:04,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:54:04,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:54:04,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:54:04,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,052 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-26 00:54:05,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-26 00:54:05,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,311 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-26 00:54:05,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-26 00:54:05,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,670 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-26 00:54:05,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-26 00:54:05,690 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:54:05,697 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:54:05,709 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:54:05,716 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:54:05,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,740 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:54:05,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,758 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:54:05,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,798 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:54:05,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:05,822 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:54:05,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:05,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:05,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:05,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:06,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:06,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:06,073 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:54:06,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:06,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:06,104 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:54:06,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:06,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:06,244 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:54:06,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:06,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:06,264 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 33 treesize of output 13 [2022-11-26 00:54:06,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:06,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:06,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:06,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:06,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:06,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:06,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:06,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:54:07,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:54:07,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:54:07,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:54:07,447 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:54:07,455 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:54:07,477 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:54:07,487 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-26 00:54:07,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:54:07,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:54:07,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:54:07,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:54:07,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:54:07,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:54:08,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:54:08,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:54:08,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:54:08,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:54:08,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:54:08,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:54:08,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:54:08,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:54:09,048 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 51 for LOIs [2022-11-26 00:54:09,088 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 41 for LOIs [2022-11-26 00:54:09,150 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 78 for LOIs [2022-11-26 00:54:09,360 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 86 for LOIs [2022-11-26 00:54:09,436 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:54:29,505 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5521#(and (= |~#drvlist~0.offset| 0) (<= 0 (+ |ULTIMATE.start_foo_~N~0#1| 2147483648)) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= 4 |~#drvlist~0.base|) (<= 0 |ULTIMATE.start_foo_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:54:29,505 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:54:29,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:54:29,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 33] total 56 [2022-11-26 00:54:29,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617420598] [2022-11-26 00:54:29,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:54:29,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-26 00:54:29,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:29,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-26 00:54:29,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=6804, Unknown=19, NotChecked=166, Total=7310 [2022-11-26 00:54:29,510 INFO L87 Difference]: Start difference. First operand 149 states and 191 transitions. Second operand has 56 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 42 states have internal predecessors, (63), 16 states have call successors, (18), 10 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-26 00:55:13,404 WARN L233 SmtUtils]: Spent 37.33s on a formula simplification. DAG size of input: 228 DAG size of output: 199 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:55:54,290 WARN L233 SmtUtils]: Spent 38.01s on a formula simplification. DAG size of input: 213 DAG size of output: 184 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:56:07,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:56:09,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:56:16,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:56:24,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:56:26,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:56:29,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:56:39,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:39,234 INFO L93 Difference]: Finished difference Result 345 states and 445 transitions. [2022-11-26 00:56:39,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-26 00:56:39,235 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 42 states have internal predecessors, (63), 16 states have call successors, (18), 10 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 16 states have call successors, (18) Word has length 53 [2022-11-26 00:56:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:39,237 INFO L225 Difference]: With dead ends: 345 [2022-11-26 00:56:39,237 INFO L226 Difference]: Without dead ends: 230 [2022-11-26 00:56:39,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 61 SyntacticMatches, 7 SemanticMatches, 121 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4290 ImplicationChecksByTransitivity, 400.6s TimeCoverageRelationStatistics Valid=818, Invalid=13921, Unknown=27, NotChecked=240, Total=15006 [2022-11-26 00:56:39,240 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 242 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 109 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:39,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 679 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2110 Invalid, 34 Unknown, 0 Unchecked, 30.2s Time] [2022-11-26 00:56:39,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-26 00:56:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 192. [2022-11-26 00:56:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 138 states have (on average 1.2608695652173914) internal successors, (174), 144 states have internal predecessors, (174), 27 states have call successors, (27), 19 states have call predecessors, (27), 24 states have return successors, (40), 30 states have call predecessors, (40), 27 states have call successors, (40) [2022-11-26 00:56:39,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 241 transitions. [2022-11-26 00:56:39,308 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 241 transitions. Word has length 53 [2022-11-26 00:56:39,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:39,308 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 241 transitions. [2022-11-26 00:56:39,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 42 states have internal predecessors, (63), 16 states have call successors, (18), 10 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-26 00:56:39,308 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 241 transitions. [2022-11-26 00:56:39,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-26 00:56:39,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:39,310 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:39,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:56:39,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-26 00:56:39,511 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:56:39,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:39,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1333905901, now seen corresponding path program 1 times [2022-11-26 00:56:39,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:39,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860085774] [2022-11-26 00:56:39,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:39,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:39,637 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:56:39,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:39,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860085774] [2022-11-26 00:56:39,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860085774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:39,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:39,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:56:39,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824527665] [2022-11-26 00:56:39,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:39,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:56:39,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:39,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:56:39,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:56:39,639 INFO L87 Difference]: Start difference. First operand 192 states and 241 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-26 00:56:39,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:39,849 INFO L93 Difference]: Finished difference Result 206 states and 258 transitions. [2022-11-26 00:56:39,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:56:39,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 54 [2022-11-26 00:56:39,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:39,851 INFO L225 Difference]: With dead ends: 206 [2022-11-26 00:56:39,851 INFO L226 Difference]: Without dead ends: 204 [2022-11-26 00:56:39,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:56:39,852 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:39,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:56:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-26 00:56:39,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-26 00:56:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 148 states have (on average 1.2432432432432432) internal successors, (184), 152 states have internal predecessors, (184), 27 states have call successors, (27), 19 states have call predecessors, (27), 26 states have return successors, (42), 34 states have call predecessors, (42), 27 states have call successors, (42) [2022-11-26 00:56:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 253 transitions. [2022-11-26 00:56:39,938 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 253 transitions. Word has length 54 [2022-11-26 00:56:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:39,939 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 253 transitions. [2022-11-26 00:56:39,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-26 00:56:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 253 transitions. [2022-11-26 00:56:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-26 00:56:39,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:39,940 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:39,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:56:39,940 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:56:39,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:39,940 INFO L85 PathProgramCache]: Analyzing trace with hash 492805483, now seen corresponding path program 1 times [2022-11-26 00:56:39,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:39,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907483813] [2022-11-26 00:56:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:39,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:56:53,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:53,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907483813] [2022-11-26 00:56:53,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907483813] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:56:53,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189742297] [2022-11-26 00:56:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:53,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:56:53,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:56:53,267 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:56:53,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e760fb2d-e7f9-4f9d-973f-d0128198a006/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:56:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:53,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 286 conjunts are in the unsatisfiable core [2022-11-26 00:56:53,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:56:54,446 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:56:54,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-26 00:56:56,361 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-26 00:56:56,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 281 [2022-11-26 00:56:56,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:56:56,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:56:56,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:56:56,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:56:57,038 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-26 00:56:57,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 50 [2022-11-26 00:56:57,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:56:57,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:56:57,152 INFO L321 Elim1Store]: treesize reduction 63, result has 1.6 percent of original size [2022-11-26 00:56:57,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 62 treesize of output 21 [2022-11-26 00:56:57,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:57:04,658 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-11-26 00:57:04,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 21 treesize of output 25 [2022-11-26 00:57:05,208 INFO L321 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2022-11-26 00:57:05,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 30 [2022-11-26 00:57:05,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:05,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 23 treesize of output 25 [2022-11-26 00:57:05,782 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-26 00:57:05,782 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 21 treesize of output 13 [2022-11-26 00:57:05,790 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 7 [2022-11-26 00:57:07,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:08,043 INFO L321 Elim1Store]: treesize reduction 289, result has 19.3 percent of original size [2022-11-26 00:57:08,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 209 treesize of output 208 [2022-11-26 00:57:08,326 INFO L321 Elim1Store]: treesize reduction 213, result has 19.3 percent of original size [2022-11-26 00:57:08,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 539 treesize of output 405 [2022-11-26 00:57:08,436 INFO L321 Elim1Store]: treesize reduction 298, result has 2.9 percent of original size [2022-11-26 00:57:08,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 466 treesize of output 314 [2022-11-26 00:57:10,133 INFO L321 Elim1Store]: treesize reduction 2143, result has 9.1 percent of original size [2022-11-26 00:57:10,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 4728 treesize of output 4532 [2022-11-26 00:57:10,564 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:57:10,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 3863 treesize of output 2543 [2022-11-26 00:57:10,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:57:36,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:36,987 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:57:36,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 2527 treesize of output 2455 [2022-11-26 00:58:02,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:02,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:58:02,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:02,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:58:03,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-26 00:58:03,284 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-26 00:58:03,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-26 00:58:03,738 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-26 00:58:03,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-26 00:58:03,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-26 00:58:04,105 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-26 00:58:04,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 525 treesize of output 519 [2022-11-26 00:58:04,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 396 treesize of output 385 [2022-11-26 00:58:04,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:04,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 29 treesize of output 31 [2022-11-26 00:58:04,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:04,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 29 treesize of output 31 [2022-11-26 00:58:05,148 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-26 00:58:05,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 511 treesize of output 505 [2022-11-26 00:58:05,467 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-26 00:58:05,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-26 00:58:05,831 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-26 00:58:05,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 475 treesize of output 469 [2022-11-26 00:58:06,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:06,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 29 treesize of output 31 [2022-11-26 00:58:06,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-26 00:58:06,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 396 treesize of output 385 [2022-11-26 00:58:06,893 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-26 00:58:06,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-26 00:58:07,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:07,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:58:07,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:07,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:58:07,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 396 treesize of output 385 [2022-11-26 00:58:07,643 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-26 00:58:07,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-26 00:58:07,825 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-26 00:58:07,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 481 treesize of output 475 [2022-11-26 00:58:08,107 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-26 00:58:08,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 461 [2022-11-26 00:58:08,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-26 00:58:08,607 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-26 00:58:08,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-26 00:58:08,915 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-26 00:58:08,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-26 00:58:09,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-26 00:58:09,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 404 treesize of output 393 [2022-11-26 00:58:09,481 INFO L321 Elim1Store]: treesize reduction 49, result has 21.0 percent of original size [2022-11-26 00:58:09,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 489 treesize of output 483 [2022-11-26 00:58:09,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:09,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 29 treesize of output 31 [2022-11-26 00:58:10,246 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-26 00:58:10,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-26 00:58:10,382 INFO L321 Elim1Store]: treesize reduction 38, result has 38.7 percent of original size [2022-11-26 00:58:10,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2022-11-26 00:58:10,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 20 treesize of output 17 [2022-11-26 00:58:26,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:26,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:26,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:26,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:27,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-26 00:58:27,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2022-11-26 00:58:27,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2022-11-26 00:58:27,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-26 00:58:28,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-26 00:58:28,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:28,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-26 00:58:28,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:28,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:28,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-26 00:58:28,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-26 00:58:29,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:29,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 652 treesize of output 644 [2022-11-26 00:58:30,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:30,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:30,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 557 treesize of output 549 [2022-11-26 00:58:30,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:30,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:58:30,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:58:31,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:31,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:31,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:31,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2022-11-26 00:58:31,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-26 00:58:31,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:31,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:32,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:32,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:32,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 670 treesize of output 662 [2022-11-26 00:58:32,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:33,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 593 treesize of output 585 [2022-11-26 00:58:33,804 INFO L321 Elim1Store]: treesize reduction 34, result has 51.4 percent of original size [2022-11-26 00:58:33,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 818 treesize of output 842 [2022-11-26 00:58:34,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 557 treesize of output 549 [2022-11-26 00:58:35,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:35,385 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:58:35,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 58 [2022-11-26 00:58:36,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:36,368 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:58:36,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 52 [2022-11-26 00:58:37,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 955 treesize of output 947 [2022-11-26 00:58:37,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:37,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:38,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:38,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:38,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 951 treesize of output 943