./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext/tree_cnstr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext/tree_cnstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba983053090b7e7410066c63fe0cfe9ad27960a7dc19d54045684ba21359c88d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:35:33,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:35:33,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:35:33,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:35:33,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:35:33,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:35:33,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:35:33,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:35:33,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:35:33,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:35:33,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:35:33,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:35:33,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:35:33,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:35:33,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:35:33,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:35:33,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:35:33,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:35:33,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:35:33,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:35:33,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:35:33,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:35:33,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:35:33,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:35:33,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:35:33,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:35:33,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:35:33,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:35:33,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:35:33,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:35:33,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:35:33,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:35:33,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:35:33,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:35:33,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:35:33,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:35:33,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:35:33,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:35:33,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:35:33,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:35:33,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:35:33,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-25 20:35:33,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:35:33,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:35:33,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:35:33,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:35:33,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:35:33,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:35:33,550 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:35:33,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:35:33,551 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:35:33,552 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:35:33,553 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:35:33,553 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:35:33,553 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:35:33,553 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:35:33,554 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:35:33,554 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:35:33,554 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:35:33,554 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:35:33,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 20:35:33,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 20:35:33,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:35:33,562 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:35:33,562 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:35:33,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:35:33,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:35:33,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:35:33,563 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 20:35:33,563 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 20:35:33,564 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 20:35:33,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:35:33,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 20:35:33,564 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:35:33,564 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:35:33,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:35:33,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:35:33,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:35:33,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:35:33,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:35:33,565 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:35:33,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:35:33,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:35:33,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:35:33,566 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba983053090b7e7410066c63fe0cfe9ad27960a7dc19d54045684ba21359c88d [2021-11-25 20:35:33,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:35:33,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:35:33,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:35:33,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:35:33,843 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:35:33,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/memsafety-ext/tree_cnstr.i [2021-11-25 20:35:33,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/data/6929f38d2/dbe798e0d766470a890dbe42361616f6/FLAGd0cfb9964 [2021-11-25 20:35:34,426 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:35:34,426 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/sv-benchmarks/c/memsafety-ext/tree_cnstr.i [2021-11-25 20:35:34,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/data/6929f38d2/dbe798e0d766470a890dbe42361616f6/FLAGd0cfb9964 [2021-11-25 20:35:34,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/data/6929f38d2/dbe798e0d766470a890dbe42361616f6 [2021-11-25 20:35:34,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:35:34,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:35:34,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:35:34,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:35:34,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:35:34,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:35:34" (1/1) ... [2021-11-25 20:35:34,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6c8a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:34, skipping insertion in model container [2021-11-25 20:35:34,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:35:34" (1/1) ... [2021-11-25 20:35:34,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:35:34,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:35:35,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:35:35,116 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:35:35,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:35:35,193 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:35:35,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35 WrapperNode [2021-11-25 20:35:35,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:35:35,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:35:35,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:35:35,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:35:35,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,252 INFO L137 Inliner]: procedures = 123, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 138 [2021-11-25 20:35:35,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:35:35,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:35:35,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:35:35,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:35:35,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:35:35,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:35:35,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:35:35,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:35:35,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (1/1) ... [2021-11-25 20:35:35,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:35:35,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:35:35,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:35:35,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:35:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:35:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:35:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:35:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:35:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:35:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:35:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:35:35,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:35:35,545 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:35:35,546 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:35:35,917 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:35:35,974 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:35:35,974 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 20:35:35,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:35:35 BoogieIcfgContainer [2021-11-25 20:35:35,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:35:35,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:35:35,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:35:35,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:35:35,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:35:34" (1/3) ... [2021-11-25 20:35:35,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a95eff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:35:35, skipping insertion in model container [2021-11-25 20:35:35,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:35" (2/3) ... [2021-11-25 20:35:35,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a95eff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:35:35, skipping insertion in model container [2021-11-25 20:35:35,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:35:35" (3/3) ... [2021-11-25 20:35:35,986 INFO L111 eAbstractionObserver]: Analyzing ICFG tree_cnstr.i [2021-11-25 20:35:35,990 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:35:35,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2021-11-25 20:35:36,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:35:36,042 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:35:36,042 INFO L340 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2021-11-25 20:35:36,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 45 states have (on average 2.577777777777778) internal successors, (116), 101 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:35:36,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:36,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:35:36,066 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:36,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:36,071 INFO L85 PathProgramCache]: Analyzing trace with hash 7909, now seen corresponding path program 1 times [2021-11-25 20:35:36,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:36,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212258992] [2021-11-25 20:35:36,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:36,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:36,223 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:36,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212258992] [2021-11-25 20:35:36,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212258992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:36,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:36,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:35:36,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140724776] [2021-11-25 20:35:36,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:36,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:36,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:36,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:36,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:36,260 INFO L87 Difference]: Start difference. First operand has 102 states, 45 states have (on average 2.577777777777778) internal successors, (116), 101 states have internal predecessors, (116), 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:36,422 INFO L93 Difference]: Finished difference Result 139 states and 155 transitions. [2021-11-25 20:35:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:36,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-25 20:35:36,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:36,434 INFO L225 Difference]: With dead ends: 139 [2021-11-25 20:35:36,434 INFO L226 Difference]: Without dead ends: 137 [2021-11-25 20:35:36,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:36,439 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:36,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 76 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:35:36,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-25 20:35:36,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2021-11-25 20:35:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 98 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:36,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 110 transitions. [2021-11-25 20:35:36,479 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 110 transitions. Word has length 2 [2021-11-25 20:35:36,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:36,480 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 110 transitions. [2021-11-25 20:35:36,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:36,480 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 110 transitions. [2021-11-25 20:35:36,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:35:36,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:36,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:35:36,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:35:36,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:36,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:36,482 INFO L85 PathProgramCache]: Analyzing trace with hash 7910, now seen corresponding path program 1 times [2021-11-25 20:35:36,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:36,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162035315] [2021-11-25 20:35:36,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:36,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:36,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:36,525 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:36,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162035315] [2021-11-25 20:35:36,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162035315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:36,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:36,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:35:36,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181832736] [2021-11-25 20:35:36,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:36,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:36,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:36,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:36,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:36,529 INFO L87 Difference]: Start difference. First operand 99 states and 110 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:36,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:36,638 INFO L93 Difference]: Finished difference Result 135 states and 151 transitions. [2021-11-25 20:35:36,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:36,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-25 20:35:36,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:36,640 INFO L225 Difference]: With dead ends: 135 [2021-11-25 20:35:36,641 INFO L226 Difference]: Without dead ends: 135 [2021-11-25 20:35:36,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:36,643 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 104 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:36,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 82 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:35:36,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-25 20:35:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 97. [2021-11-25 20:35:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 45 states have (on average 2.4) internal successors, (108), 96 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:36,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2021-11-25 20:35:36,654 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 2 [2021-11-25 20:35:36,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:36,654 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2021-11-25 20:35:36,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:36,655 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2021-11-25 20:35:36,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:35:36,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:36,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:35:36,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:35:36,656 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:36,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:36,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1286538703, now seen corresponding path program 1 times [2021-11-25 20:35:36,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:36,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662993210] [2021-11-25 20:35:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:36,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:36,708 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:36,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662993210] [2021-11-25 20:35:36,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662993210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:36,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:36,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:36,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596702350] [2021-11-25 20:35:36,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:36,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:35:36,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:36,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:35:36,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:35:36,711 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2021-11-25 20:35:36,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:36,879 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2021-11-25 20:35:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:35:36,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2021-11-25 20:35:36,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:36,881 INFO L225 Difference]: With dead ends: 121 [2021-11-25 20:35:36,882 INFO L226 Difference]: Without dead ends: 121 [2021-11-25 20:35:36,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:36,884 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 184 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:36,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 46 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-25 20:35:36,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 84. [2021-11-25 20:35:36,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 83 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:36,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2021-11-25 20:35:36,893 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 6 [2021-11-25 20:35:36,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:36,893 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2021-11-25 20:35:36,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2021-11-25 20:35:36,894 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2021-11-25 20:35:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:35:36,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:36,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:35:36,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:35:36,895 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:36,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:36,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1286538702, now seen corresponding path program 1 times [2021-11-25 20:35:36,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:36,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143817057] [2021-11-25 20:35:36,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:36,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:36,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:36,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143817057] [2021-11-25 20:35:36,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143817057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:36,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:36,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:35:36,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987565167] [2021-11-25 20:35:36,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:36,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:35:36,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:36,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:35:36,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:35:36,972 INFO L87 Difference]: Start difference. First operand 84 states and 98 transitions. Second operand has 4 states, 3 states have (on average 2.0) 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) [2021-11-25 20:35:37,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:37,218 INFO L93 Difference]: Finished difference Result 182 states and 210 transitions. [2021-11-25 20:35:37,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:35:37,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) 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 [2021-11-25 20:35:37,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:37,221 INFO L225 Difference]: With dead ends: 182 [2021-11-25 20:35:37,221 INFO L226 Difference]: Without dead ends: 182 [2021-11-25 20:35:37,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:37,222 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 201 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:37,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 76 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-25 20:35:37,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 135. [2021-11-25 20:35:37,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 99 states have (on average 1.9191919191919191) internal successors, (190), 134 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 190 transitions. [2021-11-25 20:35:37,238 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 190 transitions. Word has length 6 [2021-11-25 20:35:37,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:37,251 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 190 transitions. [2021-11-25 20:35:37,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) 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) [2021-11-25 20:35:37,256 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 190 transitions. [2021-11-25 20:35:37,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 20:35:37,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:37,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:37,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:35:37,258 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:37,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:37,258 INFO L85 PathProgramCache]: Analyzing trace with hash 586937635, now seen corresponding path program 1 times [2021-11-25 20:35:37,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:37,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178024766] [2021-11-25 20:35:37,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:37,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:37,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:37,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:37,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178024766] [2021-11-25 20:35:37,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178024766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:37,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:37,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:35:37,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108309709] [2021-11-25 20:35:37,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:37,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:37,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:37,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:37,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:37,338 INFO L87 Difference]: Start difference. First operand 135 states and 190 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:37,375 INFO L93 Difference]: Finished difference Result 149 states and 188 transitions. [2021-11-25 20:35:37,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:37,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 20:35:37,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:37,377 INFO L225 Difference]: With dead ends: 149 [2021-11-25 20:35:37,377 INFO L226 Difference]: Without dead ends: 149 [2021-11-25 20:35:37,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:37,384 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 83 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:37,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 106 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:35:37,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-25 20:35:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 135. [2021-11-25 20:35:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 99 states have (on average 1.898989898989899) internal successors, (188), 134 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 188 transitions. [2021-11-25 20:35:37,401 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 188 transitions. Word has length 8 [2021-11-25 20:35:37,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:37,402 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 188 transitions. [2021-11-25 20:35:37,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 188 transitions. [2021-11-25 20:35:37,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 20:35:37,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:37,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:37,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:35:37,403 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:37,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:37,404 INFO L85 PathProgramCache]: Analyzing trace with hash 451253929, now seen corresponding path program 1 times [2021-11-25 20:35:37,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:37,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570196542] [2021-11-25 20:35:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:37,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:37,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:37,563 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:37,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570196542] [2021-11-25 20:35:37,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570196542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:37,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:37,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:35:37,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973356200] [2021-11-25 20:35:37,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:37,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:35:37,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:37,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:35:37,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:37,567 INFO L87 Difference]: Start difference. First operand 135 states and 188 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:37,785 INFO L93 Difference]: Finished difference Result 228 states and 296 transitions. [2021-11-25 20:35:37,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:35:37,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2021-11-25 20:35:37,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:37,787 INFO L225 Difference]: With dead ends: 228 [2021-11-25 20:35:37,787 INFO L226 Difference]: Without dead ends: 228 [2021-11-25 20:35:37,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:35:37,788 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 112 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:37,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 212 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:37,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-25 20:35:37,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 146. [2021-11-25 20:35:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 110 states have (on average 1.8363636363636364) internal successors, (202), 145 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 202 transitions. [2021-11-25 20:35:37,796 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 202 transitions. Word has length 11 [2021-11-25 20:35:37,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:37,797 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 202 transitions. [2021-11-25 20:35:37,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,797 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 202 transitions. [2021-11-25 20:35:37,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 20:35:37,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:37,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:37,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:35:37,798 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:37,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:37,799 INFO L85 PathProgramCache]: Analyzing trace with hash -25059268, now seen corresponding path program 1 times [2021-11-25 20:35:37,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:37,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729604454] [2021-11-25 20:35:37,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:37,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:37,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:37,833 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:37,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729604454] [2021-11-25 20:35:37,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729604454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:37,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:37,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:37,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598935336] [2021-11-25 20:35:37,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:37,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:37,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:37,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:37,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:37,835 INFO L87 Difference]: Start difference. First operand 146 states and 202 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:37,870 INFO L93 Difference]: Finished difference Result 149 states and 205 transitions. [2021-11-25 20:35:37,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:37,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-11-25 20:35:37,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:37,872 INFO L225 Difference]: With dead ends: 149 [2021-11-25 20:35:37,872 INFO L226 Difference]: Without dead ends: 149 [2021-11-25 20:35:37,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:37,874 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:37,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:35:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-25 20:35:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-11-25 20:35:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 113 states have (on average 1.8141592920353982) internal successors, (205), 148 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 205 transitions. [2021-11-25 20:35:37,880 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 205 transitions. Word has length 12 [2021-11-25 20:35:37,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:37,880 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 205 transitions. [2021-11-25 20:35:37,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,881 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 205 transitions. [2021-11-25 20:35:37,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 20:35:37,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:37,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:37,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:35:37,882 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:37,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:37,883 INFO L85 PathProgramCache]: Analyzing trace with hash -772928796, now seen corresponding path program 1 times [2021-11-25 20:35:37,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:37,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070037530] [2021-11-25 20:35:37,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:37,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:37,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:37,922 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:37,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070037530] [2021-11-25 20:35:37,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070037530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:37,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:37,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:37,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283473] [2021-11-25 20:35:37,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:37,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:37,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:37,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:37,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:37,925 INFO L87 Difference]: Start difference. First operand 149 states and 205 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:37,977 INFO L93 Difference]: Finished difference Result 161 states and 211 transitions. [2021-11-25 20:35:37,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:37,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2021-11-25 20:35:37,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:37,979 INFO L225 Difference]: With dead ends: 161 [2021-11-25 20:35:37,979 INFO L226 Difference]: Without dead ends: 161 [2021-11-25 20:35:37,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:37,981 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 12 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:37,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 137 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:35:37,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-25 20:35:37,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 149. [2021-11-25 20:35:37,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 113 states have (on average 1.7876106194690264) internal successors, (202), 148 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2021-11-25 20:35:37,986 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 13 [2021-11-25 20:35:37,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:37,986 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2021-11-25 20:35:37,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:37,987 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2021-11-25 20:35:37,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 20:35:37,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:37,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:37,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:35:37,988 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:37,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash -25836561, now seen corresponding path program 1 times [2021-11-25 20:35:37,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:37,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154543698] [2021-11-25 20:35:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:37,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:38,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:38,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154543698] [2021-11-25 20:35:38,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154543698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:38,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:38,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:35:38,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579764092] [2021-11-25 20:35:38,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:38,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:35:38,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:38,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:35:38,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:38,042 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:38,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:38,195 INFO L93 Difference]: Finished difference Result 148 states and 200 transitions. [2021-11-25 20:35:38,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:35:38,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-11-25 20:35:38,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:38,197 INFO L225 Difference]: With dead ends: 148 [2021-11-25 20:35:38,197 INFO L226 Difference]: Without dead ends: 148 [2021-11-25 20:35:38,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:35:38,198 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 5 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:38,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 190 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:35:38,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-25 20:35:38,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-25 20:35:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 113 states have (on average 1.7699115044247788) internal successors, (200), 147 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:38,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 200 transitions. [2021-11-25 20:35:38,204 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 200 transitions. Word has length 13 [2021-11-25 20:35:38,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:38,204 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 200 transitions. [2021-11-25 20:35:38,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:38,204 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 200 transitions. [2021-11-25 20:35:38,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 20:35:38,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:38,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:38,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:35:38,206 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:38,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:38,210 INFO L85 PathProgramCache]: Analyzing trace with hash -25836560, now seen corresponding path program 1 times [2021-11-25 20:35:38,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:38,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372071552] [2021-11-25 20:35:38,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:38,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:38,332 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:38,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372071552] [2021-11-25 20:35:38,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372071552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:38,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:38,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:35:38,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732473598] [2021-11-25 20:35:38,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:38,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:35:38,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:38,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:35:38,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:38,334 INFO L87 Difference]: Start difference. First operand 148 states and 200 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:38,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:38,479 INFO L93 Difference]: Finished difference Result 147 states and 198 transitions. [2021-11-25 20:35:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:35:38,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-11-25 20:35:38,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:38,481 INFO L225 Difference]: With dead ends: 147 [2021-11-25 20:35:38,481 INFO L226 Difference]: Without dead ends: 147 [2021-11-25 20:35:38,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:35:38,482 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 3 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:38,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 167 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:35:38,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-11-25 20:35:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-11-25 20:35:38,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 113 states have (on average 1.752212389380531) internal successors, (198), 146 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:38,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 198 transitions. [2021-11-25 20:35:38,487 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 198 transitions. Word has length 13 [2021-11-25 20:35:38,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:38,487 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 198 transitions. [2021-11-25 20:35:38,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:38,488 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 198 transitions. [2021-11-25 20:35:38,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 20:35:38,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:38,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:38,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:35:38,489 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:38,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1689027667, now seen corresponding path program 1 times [2021-11-25 20:35:38,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:38,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883626793] [2021-11-25 20:35:38,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:38,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:38,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:38,597 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:38,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883626793] [2021-11-25 20:35:38,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883626793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:38,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:38,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:35:38,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584486915] [2021-11-25 20:35:38,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:38,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:35:38,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:38,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:35:38,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:38,600 INFO L87 Difference]: Start difference. First operand 147 states and 198 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:38,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:38,808 INFO L93 Difference]: Finished difference Result 215 states and 275 transitions. [2021-11-25 20:35:38,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:35:38,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2021-11-25 20:35:38,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:38,809 INFO L225 Difference]: With dead ends: 215 [2021-11-25 20:35:38,809 INFO L226 Difference]: Without dead ends: 215 [2021-11-25 20:35:38,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:35:38,810 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 86 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:38,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 219 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:38,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-25 20:35:38,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 176. [2021-11-25 20:35:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 142 states have (on average 1.7535211267605635) internal successors, (249), 175 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:38,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 249 transitions. [2021-11-25 20:35:38,816 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 249 transitions. Word has length 14 [2021-11-25 20:35:38,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:38,816 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 249 transitions. [2021-11-25 20:35:38,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 249 transitions. [2021-11-25 20:35:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 20:35:38,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:38,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:38,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:35:38,817 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:38,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:38,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1809028201, now seen corresponding path program 1 times [2021-11-25 20:35:38,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:38,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031721394] [2021-11-25 20:35:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:38,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:38,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:38,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031721394] [2021-11-25 20:35:38,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031721394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:38,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:38,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:35:38,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738297202] [2021-11-25 20:35:38,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:38,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:35:38,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:38,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:35:38,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:35:38,850 INFO L87 Difference]: Start difference. First operand 176 states and 249 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:39,032 INFO L93 Difference]: Finished difference Result 205 states and 261 transitions. [2021-11-25 20:35:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:35:39,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-11-25 20:35:39,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:39,034 INFO L225 Difference]: With dead ends: 205 [2021-11-25 20:35:39,034 INFO L226 Difference]: Without dead ends: 205 [2021-11-25 20:35:39,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:39,035 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 161 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:39,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 129 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:39,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-25 20:35:39,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 177. [2021-11-25 20:35:39,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 143 states have (on average 1.7482517482517483) internal successors, (250), 176 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 250 transitions. [2021-11-25 20:35:39,040 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 250 transitions. Word has length 14 [2021-11-25 20:35:39,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:39,040 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 250 transitions. [2021-11-25 20:35:39,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,041 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 250 transitions. [2021-11-25 20:35:39,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:35:39,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:39,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:39,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:35:39,042 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:39,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:39,042 INFO L85 PathProgramCache]: Analyzing trace with hash 245949691, now seen corresponding path program 1 times [2021-11-25 20:35:39,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:39,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570637410] [2021-11-25 20:35:39,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:39,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:39,135 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:39,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570637410] [2021-11-25 20:35:39,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570637410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:39,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:39,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:35:39,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094191538] [2021-11-25 20:35:39,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:39,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:35:39,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:39,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:35:39,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:39,137 INFO L87 Difference]: Start difference. First operand 177 states and 250 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:39,289 INFO L93 Difference]: Finished difference Result 190 states and 266 transitions. [2021-11-25 20:35:39,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:35:39,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-11-25 20:35:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:39,291 INFO L225 Difference]: With dead ends: 190 [2021-11-25 20:35:39,291 INFO L226 Difference]: Without dead ends: 190 [2021-11-25 20:35:39,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:35:39,292 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 50 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:39,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 133 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:35:39,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-25 20:35:39,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2021-11-25 20:35:39,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 150 states have (on average 1.7266666666666666) internal successors, (259), 183 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 259 transitions. [2021-11-25 20:35:39,298 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 259 transitions. Word has length 15 [2021-11-25 20:35:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:39,298 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 259 transitions. [2021-11-25 20:35:39,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 259 transitions. [2021-11-25 20:35:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:35:39,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:39,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:39,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 20:35:39,300 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:39,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:39,300 INFO L85 PathProgramCache]: Analyzing trace with hash 245955643, now seen corresponding path program 1 times [2021-11-25 20:35:39,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:39,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398616994] [2021-11-25 20:35:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:39,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:39,377 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:39,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398616994] [2021-11-25 20:35:39,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398616994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:39,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:39,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:35:39,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93494866] [2021-11-25 20:35:39,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:39,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:35:39,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:39,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:35:39,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:39,379 INFO L87 Difference]: Start difference. First operand 184 states and 259 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:39,571 INFO L93 Difference]: Finished difference Result 184 states and 240 transitions. [2021-11-25 20:35:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:35:39,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-11-25 20:35:39,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:39,573 INFO L225 Difference]: With dead ends: 184 [2021-11-25 20:35:39,573 INFO L226 Difference]: Without dead ends: 184 [2021-11-25 20:35:39,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:35:39,574 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 40 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:39,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 220 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-25 20:35:39,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 160. [2021-11-25 20:35:39,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 126 states have (on average 1.6904761904761905) internal successors, (213), 159 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 213 transitions. [2021-11-25 20:35:39,579 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 213 transitions. Word has length 15 [2021-11-25 20:35:39,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:39,579 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 213 transitions. [2021-11-25 20:35:39,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,579 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 213 transitions. [2021-11-25 20:35:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:35:39,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:39,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:39,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 20:35:39,580 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:39,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:39,581 INFO L85 PathProgramCache]: Analyzing trace with hash 941013543, now seen corresponding path program 1 times [2021-11-25 20:35:39,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:39,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495194395] [2021-11-25 20:35:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:39,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:39,669 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:39,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495194395] [2021-11-25 20:35:39,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495194395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:39,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:39,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 20:35:39,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472872995] [2021-11-25 20:35:39,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:39,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 20:35:39,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:39,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 20:35:39,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:35:39,672 INFO L87 Difference]: Start difference. First operand 160 states and 213 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:39,916 INFO L93 Difference]: Finished difference Result 162 states and 215 transitions. [2021-11-25 20:35:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:35:39,917 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2021-11-25 20:35:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:39,918 INFO L225 Difference]: With dead ends: 162 [2021-11-25 20:35:39,918 INFO L226 Difference]: Without dead ends: 162 [2021-11-25 20:35:39,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:35:39,919 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 69 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:39,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 147 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:39,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-25 20:35:39,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 159. [2021-11-25 20:35:39,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 126 states have (on average 1.6746031746031746) internal successors, (211), 158 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 211 transitions. [2021-11-25 20:35:39,933 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 211 transitions. Word has length 15 [2021-11-25 20:35:39,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:39,934 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 211 transitions. [2021-11-25 20:35:39,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 211 transitions. [2021-11-25 20:35:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:35:39,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:39,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:39,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 20:35:39,937 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:39,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:39,937 INFO L85 PathProgramCache]: Analyzing trace with hash 941013544, now seen corresponding path program 1 times [2021-11-25 20:35:39,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:39,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72447018] [2021-11-25 20:35:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:39,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:40,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:40,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:40,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72447018] [2021-11-25 20:35:40,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72447018] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:40,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:40,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 20:35:40,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000438675] [2021-11-25 20:35:40,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:40,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 20:35:40,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:40,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 20:35:40,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:35:40,085 INFO L87 Difference]: Start difference. First operand 159 states and 211 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:40,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:40,341 INFO L93 Difference]: Finished difference Result 161 states and 213 transitions. [2021-11-25 20:35:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:35:40,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2021-11-25 20:35:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:40,343 INFO L225 Difference]: With dead ends: 161 [2021-11-25 20:35:40,343 INFO L226 Difference]: Without dead ends: 161 [2021-11-25 20:35:40,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:35:40,344 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 66 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:40,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 131 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:40,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-25 20:35:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2021-11-25 20:35:40,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 126 states have (on average 1.6587301587301588) internal successors, (209), 157 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:40,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 209 transitions. [2021-11-25 20:35:40,350 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 209 transitions. Word has length 15 [2021-11-25 20:35:40,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:40,350 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 209 transitions. [2021-11-25 20:35:40,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:40,351 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 209 transitions. [2021-11-25 20:35:40,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:35:40,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:40,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:40,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 20:35:40,352 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:40,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:40,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1532005382, now seen corresponding path program 1 times [2021-11-25 20:35:40,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:40,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533948933] [2021-11-25 20:35:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:40,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:40,409 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:40,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533948933] [2021-11-25 20:35:40,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533948933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:40,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:40,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:35:40,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304094766] [2021-11-25 20:35:40,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:40,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:35:40,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:40,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:35:40,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:40,412 INFO L87 Difference]: Start difference. First operand 158 states and 209 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:40,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:40,528 INFO L93 Difference]: Finished difference Result 157 states and 207 transitions. [2021-11-25 20:35:40,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:35:40,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-11-25 20:35:40,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:40,529 INFO L225 Difference]: With dead ends: 157 [2021-11-25 20:35:40,530 INFO L226 Difference]: Without dead ends: 157 [2021-11-25 20:35:40,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:35:40,530 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 5 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:40,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 180 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:35:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-25 20:35:40,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2021-11-25 20:35:40,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 126 states have (on average 1.6428571428571428) internal successors, (207), 156 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:40,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 207 transitions. [2021-11-25 20:35:40,536 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 207 transitions. Word has length 15 [2021-11-25 20:35:40,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:40,536 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 207 transitions. [2021-11-25 20:35:40,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:40,537 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 207 transitions. [2021-11-25 20:35:40,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:35:40,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:40,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:40,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 20:35:40,538 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:40,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1532005383, now seen corresponding path program 1 times [2021-11-25 20:35:40,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:40,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703889229] [2021-11-25 20:35:40,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:40,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:40,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:40,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:40,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703889229] [2021-11-25 20:35:40,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703889229] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:40,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:40,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:35:40,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360904969] [2021-11-25 20:35:40,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:40,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:35:40,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:40,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:35:40,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:35:40,607 INFO L87 Difference]: Start difference. First operand 157 states and 207 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:40,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:40,759 INFO L93 Difference]: Finished difference Result 156 states and 205 transitions. [2021-11-25 20:35:40,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:35:40,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-11-25 20:35:40,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:40,761 INFO L225 Difference]: With dead ends: 156 [2021-11-25 20:35:40,761 INFO L226 Difference]: Without dead ends: 156 [2021-11-25 20:35:40,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:35:40,762 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 3 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:40,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 157 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:35:40,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-25 20:35:40,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-11-25 20:35:40,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 126 states have (on average 1.626984126984127) internal successors, (205), 155 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:40,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2021-11-25 20:35:40,767 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 15 [2021-11-25 20:35:40,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:40,767 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2021-11-25 20:35:40,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2021-11-25 20:35:40,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 20:35:40,768 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:40,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:40,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 20:35:40,769 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:40,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:40,769 INFO L85 PathProgramCache]: Analyzing trace with hash -490255891, now seen corresponding path program 1 times [2021-11-25 20:35:40,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:40,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044480353] [2021-11-25 20:35:40,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:40,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:40,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:40,806 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:40,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044480353] [2021-11-25 20:35:40,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044480353] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:35:40,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153961744] [2021-11-25 20:35:40,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:40,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:35:40,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:35:40,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:35:40,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:35:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:40,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:35:40,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:35:41,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:35:41,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:41,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:35:41,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:41,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153961744] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:35:41,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [257869740] [2021-11-25 20:35:41,135 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2021-11-25 20:35:41,149 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:35:41,154 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:35:41,158 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:35:41,159 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:35:41,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:35:41,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:35:41,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:35:41,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:35:41,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:35:41,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:35:41,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:35:41,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:35:41,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:35:41,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:35:41,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:35:41,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:35:41,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:35:42,214 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:35:44,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [257869740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:44,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:35:44,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [3, 3, 3] total 15 [2021-11-25 20:35:44,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222360004] [2021-11-25 20:35:44,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:44,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 20:35:44,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:44,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 20:35:44,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:35:44,038 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:44,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:44,895 INFO L93 Difference]: Finished difference Result 169 states and 218 transitions. [2021-11-25 20:35:44,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:35:44,896 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 17 [2021-11-25 20:35:44,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:44,897 INFO L225 Difference]: With dead ends: 169 [2021-11-25 20:35:44,897 INFO L226 Difference]: Without dead ends: 150 [2021-11-25 20:35:44,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2021-11-25 20:35:44,898 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 24 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:44,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 127 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:35:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-25 20:35:44,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-11-25 20:35:44,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 120 states have (on average 1.65) internal successors, (198), 149 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:44,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 198 transitions. [2021-11-25 20:35:44,903 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 198 transitions. Word has length 17 [2021-11-25 20:35:44,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:44,903 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 198 transitions. [2021-11-25 20:35:44,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:44,903 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 198 transitions. [2021-11-25 20:35:44,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 20:35:44,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:44,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:44,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:35:45,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:35:45,122 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:45,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:45,122 INFO L85 PathProgramCache]: Analyzing trace with hash -916505773, now seen corresponding path program 1 times [2021-11-25 20:35:45,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:45,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465813651] [2021-11-25 20:35:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:45,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:45,198 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:45,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465813651] [2021-11-25 20:35:45,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465813651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:45,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:45,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 20:35:45,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65956240] [2021-11-25 20:35:45,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:45,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 20:35:45,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 20:35:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:35:45,201 INFO L87 Difference]: Start difference. First operand 150 states and 198 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:45,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:45,461 INFO L93 Difference]: Finished difference Result 151 states and 199 transitions. [2021-11-25 20:35:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:35:45,461 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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 17 [2021-11-25 20:35:45,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:45,462 INFO L225 Difference]: With dead ends: 151 [2021-11-25 20:35:45,463 INFO L226 Difference]: Without dead ends: 151 [2021-11-25 20:35:45,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:35:45,463 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 66 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:45,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 155 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:45,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-25 20:35:45,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2021-11-25 20:35:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 120 states have (on average 1.6416666666666666) internal successors, (197), 148 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:45,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 197 transitions. [2021-11-25 20:35:45,469 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 197 transitions. Word has length 17 [2021-11-25 20:35:45,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:45,469 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 197 transitions. [2021-11-25 20:35:45,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:45,469 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 197 transitions. [2021-11-25 20:35:45,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 20:35:45,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:45,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:45,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 20:35:45,470 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:45,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:45,470 INFO L85 PathProgramCache]: Analyzing trace with hash -916505772, now seen corresponding path program 1 times [2021-11-25 20:35:45,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:45,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953086275] [2021-11-25 20:35:45,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:45,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:45,590 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:45,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953086275] [2021-11-25 20:35:45,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953086275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:45,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:45,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 20:35:45,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451360981] [2021-11-25 20:35:45,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:45,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 20:35:45,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:45,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 20:35:45,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:35:45,592 INFO L87 Difference]: Start difference. First operand 149 states and 197 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:45,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:45,886 INFO L93 Difference]: Finished difference Result 150 states and 198 transitions. [2021-11-25 20:35:45,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:35:45,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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 17 [2021-11-25 20:35:45,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:45,887 INFO L225 Difference]: With dead ends: 150 [2021-11-25 20:35:45,887 INFO L226 Difference]: Without dead ends: 150 [2021-11-25 20:35:45,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:35:45,888 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 60 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:45,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 140 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:35:45,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-25 20:35:45,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2021-11-25 20:35:45,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 120 states have (on average 1.6333333333333333) internal successors, (196), 147 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:45,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2021-11-25 20:35:45,893 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 17 [2021-11-25 20:35:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:45,893 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2021-11-25 20:35:45,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:35:45,893 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2021-11-25 20:35:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-25 20:35:45,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:45,894 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:45,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 20:35:45,894 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:35:45,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:45,895 INFO L85 PathProgramCache]: Analyzing trace with hash -109306794, now seen corresponding path program 1 times [2021-11-25 20:35:45,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:45,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156130052] [2021-11-25 20:35:45,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:45,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:46,315 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:35:46,315 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:46,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156130052] [2021-11-25 20:35:46,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156130052] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:35:46,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096610935] [2021-11-25 20:35:46,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:46,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:35:46,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:35:46,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:35:46,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:35:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:46,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-25 20:35:46,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:35:46,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:35:46,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:35:46,651 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:35:46,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:35:46,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:35:46,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:35:46,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:35:46,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:35:46,803 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:35:46,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-11-25 20:35:46,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-25 20:35:46,882 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:35:46,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-11-25 20:35:46,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-25 20:35:47,049 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:35:47,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 53 treesize of output 37 [2021-11-25 20:35:47,055 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:35:47,057 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:35:47,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 24 [2021-11-25 20:35:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:35:47,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:35:48,803 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-25 20:35:48,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 12 [2021-11-25 20:36:05,772 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:05,781 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:05,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 103 [2021-11-25 20:36:05,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:05,796 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:05,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 82 [2021-11-25 20:36:05,801 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:05,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:05,822 INFO L354 Elim1Store]: treesize reduction 9, result has 60.9 percent of original size [2021-11-25 20:36:05,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 76 [2021-11-25 20:36:05,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:05,831 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:05,843 INFO L354 Elim1Store]: treesize reduction 13, result has 43.5 percent of original size [2021-11-25 20:36:05,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 81 [2021-11-25 20:36:05,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2021-11-25 20:36:05,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2021-11-25 20:36:05,910 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:05,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096610935] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:36:05,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1981053188] [2021-11-25 20:36:05,937 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2021-11-25 20:36:05,938 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:36:05,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:36:05,938 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:36:05,938 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:36:05,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:05,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:05,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:36:05,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:06,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:06,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:06,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:36:06,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:06,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:06,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:06,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:06,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:06,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:36:06,321 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:36:06,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:36:06,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:36:06,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:06,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:36:06,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:36:06,386 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:36:06,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:36:06,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:36:06,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:36:06,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:06,442 INFO L354 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2021-11-25 20:36:06,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 176 treesize of output 125 [2021-11-25 20:36:06,458 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:36:06,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:36:06,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:36:06,823 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:36:06,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:36:06,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:36:06,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:36:06,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:36:06,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:06,892 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:36:06,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:36:06,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:36:06,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:36:06,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:06,944 INFO L354 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2021-11-25 20:36:06,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 176 treesize of output 125 [2021-11-25 20:36:06,960 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:36:06,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:36:06,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:36:08,310 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:36:08,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:36:08,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:36:08,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 88 [2021-11-25 20:36:08,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 120 [2021-11-25 20:36:08,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:36:08,412 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:36:10,455 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7089#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~root~0#1.offset|) (<= |ULTIMATE.start_main_~root~0#1.offset| 0) (<= |#NULL.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~n~0#1.base|) 1)) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2021-11-25 20:36:10,456 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:36:10,456 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:36:10,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 14] total 31 [2021-11-25 20:36:10,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338870964] [2021-11-25 20:36:10,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:36:10,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-25 20:36:10,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:10,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-25 20:36:10,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=1991, Unknown=50, NotChecked=0, Total=2352 [2021-11-25 20:36:10,459 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 32 states, 32 states have (on average 1.96875) internal successors, (63), 31 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:11,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:11,079 INFO L93 Difference]: Finished difference Result 211 states and 272 transitions. [2021-11-25 20:36:11,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 20:36:11,082 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.96875) internal successors, (63), 31 states have internal predecessors, (63), 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 26 [2021-11-25 20:36:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:11,084 INFO L225 Difference]: With dead ends: 211 [2021-11-25 20:36:11,084 INFO L226 Difference]: Without dead ends: 211 [2021-11-25 20:36:11,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 41 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1217 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=472, Invalid=2558, Unknown=50, NotChecked=0, Total=3080 [2021-11-25 20:36:11,089 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 222 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 464 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:11,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 602 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 409 Invalid, 0 Unknown, 464 Unchecked, 0.3s Time] [2021-11-25 20:36:11,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-25 20:36:11,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 163. [2021-11-25 20:36:11,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 135 states have (on average 1.5925925925925926) internal successors, (215), 162 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:11,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 215 transitions. [2021-11-25 20:36:11,095 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 215 transitions. Word has length 26 [2021-11-25 20:36:11,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:11,095 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 215 transitions. [2021-11-25 20:36:11,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.96875) internal successors, (63), 31 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 215 transitions. [2021-11-25 20:36:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-25 20:36:11,097 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:11,098 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:11,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-25 20:36:11,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-25 20:36:11,326 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:36:11,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:11,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1001326369, now seen corresponding path program 1 times [2021-11-25 20:36:11,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:11,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470509449] [2021-11-25 20:36:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:11,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:36:11,584 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:11,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470509449] [2021-11-25 20:36:11,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470509449] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:11,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981305666] [2021-11-25 20:36:11,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:11,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:11,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:11,586 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:11,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:36:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:11,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-25 20:36:11,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:11,942 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:11,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:36:11,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:11,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:12,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:12,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:12,114 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:36:12,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2021-11-25 20:36:12,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-25 20:36:12,189 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:36:12,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2021-11-25 20:36:12,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-11-25 20:36:12,287 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:12,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:36:12,323 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_531 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem22#1.base| v_ArrVal_531) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)) (forall ((v_ArrVal_532 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem22#1.base| v_ArrVal_532) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0))) is different from false [2021-11-25 20:36:12,333 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_531 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) v_ArrVal_531) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)) (forall ((v_ArrVal_532 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) v_ArrVal_532) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0))) is different from false [2021-11-25 20:36:12,345 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_529 (Array Int Int)) (v_ArrVal_530 (Array Int Int)) (v_ArrVal_532 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem21#1.base| v_ArrVal_529) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem21#1.base| v_ArrVal_530) |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) v_ArrVal_532) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)) (forall ((v_ArrVal_531 (Array Int Int)) (v_ArrVal_530 (Array Int Int))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem21#1.base| v_ArrVal_530))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) v_ArrVal_531)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0))) is different from false [2021-11-25 20:36:12,358 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_531 (Array Int Int)) (v_ArrVal_530 (Array Int Int))) (= (select (select (let ((.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_530))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_531))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)) (forall ((v_ArrVal_529 (Array Int Int)) (v_ArrVal_530 (Array Int Int)) (v_ArrVal_532 (Array Int Int))) (= (select (select (let ((.cse3 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse3))) (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_529) (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_530) |c_ULTIMATE.start_main_~n~0#1.base|) .cse3) v_ArrVal_532))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0))) is different from false [2021-11-25 20:36:12,379 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_531 (Array Int Int)) (v_ArrVal_530 (Array Int Int))) (= (select (select (let ((.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1 |c_ULTIMATE.start_main_#t~malloc20#1.base|)) |c_ULTIMATE.start_main_#t~malloc20#1.base| v_ArrVal_530))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_531))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0)) (forall ((v_ArrVal_529 (Array Int Int)) (v_ArrVal_526 Int) (v_ArrVal_530 (Array Int Int)) (v_ArrVal_532 (Array Int Int))) (= (select (select (let ((.cse2 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base|) .cse2 v_ArrVal_526)) |c_ULTIMATE.start_main_#t~malloc20#1.base| v_ArrVal_529) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse2 |c_ULTIMATE.start_main_#t~malloc20#1.base|)) |c_ULTIMATE.start_main_#t~malloc20#1.base| v_ArrVal_530) |c_ULTIMATE.start_main_~n~0#1.base|) .cse2) v_ArrVal_532)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 0))) is different from false [2021-11-25 20:36:12,690 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:12,697 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:12,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 98 [2021-11-25 20:36:12,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:12,708 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:12,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 90 [2021-11-25 20:36:12,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:12,714 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:12,740 INFO L354 Elim1Store]: treesize reduction 4, result has 84.0 percent of original size [2021-11-25 20:36:12,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 215 treesize of output 175 [2021-11-25 20:36:12,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:12,768 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-25 20:36:12,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 276 treesize of output 271 [2021-11-25 20:36:12,780 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-25 20:36:12,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 12 [2021-11-25 20:36:12,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 209 [2021-11-25 20:36:12,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 205 [2021-11-25 20:36:12,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 205 treesize of output 197 [2021-11-25 20:36:12,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 189 [2021-11-25 20:36:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:12,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981305666] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:36:12,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1630248437] [2021-11-25 20:36:12,908 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2021-11-25 20:36:12,908 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:36:12,908 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:36:12,909 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:36:12,909 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:36:12,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:12,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:12,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:36:12,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:12,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 20:36:12,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:12,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:36:12,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:12,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:12,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:12,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:36:12,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:12,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:13,242 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:36:13,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:36:13,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:36:13,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:13,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:36:13,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:36:13,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:13,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 104 [2021-11-25 20:36:13,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 88 [2021-11-25 20:36:13,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:36:13,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:13,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:13,345 INFO L354 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2021-11-25 20:36:13,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 129 [2021-11-25 20:36:13,361 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:36:13,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 112 [2021-11-25 20:36:13,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:36:13,692 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:36:13,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:36:13,715 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:36:13,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:36:13,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:13,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:36:13,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:36:13,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:13,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 104 [2021-11-25 20:36:13,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 88 [2021-11-25 20:36:13,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:36:13,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:13,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:13,815 INFO L354 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2021-11-25 20:36:13,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 129 [2021-11-25 20:36:13,830 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:36:13,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 112 [2021-11-25 20:36:13,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:36:14,488 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:36:14,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:36:14,512 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:36:14,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:36:14,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:36:14,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:36:14,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 20:36:14,567 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:36:16,015 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7676#(and (= |ULTIMATE.start_main_~root~0#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~n~0#1.base|) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-25 20:36:16,015 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:36:16,015 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:36:16,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 13] total 29 [2021-11-25 20:36:16,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656771107] [2021-11-25 20:36:16,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:36:16,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-25 20:36:16,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:16,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-25 20:36:16,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1435, Unknown=5, NotChecked=410, Total=2070 [2021-11-25 20:36:16,018 INFO L87 Difference]: Start difference. First operand 163 states and 215 transitions. Second operand has 29 states, 29 states have (on average 2.103448275862069) internal successors, (61), 29 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:17,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:17,640 INFO L93 Difference]: Finished difference Result 514 states and 632 transitions. [2021-11-25 20:36:17,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-25 20:36:17,640 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.103448275862069) internal successors, (61), 29 states have internal predecessors, (61), 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 26 [2021-11-25 20:36:17,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:17,644 INFO L225 Difference]: With dead ends: 514 [2021-11-25 20:36:17,644 INFO L226 Difference]: Without dead ends: 514 [2021-11-25 20:36:17,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 53 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=484, Invalid=2835, Unknown=7, NotChecked=580, Total=3906 [2021-11-25 20:36:17,647 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 487 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1557 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:17,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 1020 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 990 Invalid, 0 Unknown, 1557 Unchecked, 0.7s Time] [2021-11-25 20:36:17,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2021-11-25 20:36:17,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 239. [2021-11-25 20:36:17,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 211 states have (on average 1.5308056872037914) internal successors, (323), 238 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:17,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 323 transitions. [2021-11-25 20:36:17,657 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 323 transitions. Word has length 26 [2021-11-25 20:36:17,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:17,658 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 323 transitions. [2021-11-25 20:36:17,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.103448275862069) internal successors, (61), 29 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:17,659 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 323 transitions. [2021-11-25 20:36:17,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:36:17,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:17,660 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:17,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:17,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-25 20:36:17,885 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:36:17,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:17,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1831783504, now seen corresponding path program 1 times [2021-11-25 20:36:17,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:17,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6273816] [2021-11-25 20:36:17,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:17,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:18,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:18,070 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:18,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6273816] [2021-11-25 20:36:18,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6273816] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:18,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689495912] [2021-11-25 20:36:18,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:18,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:18,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:18,073 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:18,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:36:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:18,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-25 20:36:18,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:18,327 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:36:18,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:36:18,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:18,479 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:36:18,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2021-11-25 20:36:18,538 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:36:18,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2021-11-25 20:36:18,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 20:36:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:18,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:36:18,798 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_605 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) v_ArrVal_605) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|)) 1)) is different from false [2021-11-25 20:36:18,908 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:18,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 31 [2021-11-25 20:36:18,917 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:18,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 252 treesize of output 227 [2021-11-25 20:36:18,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 212 treesize of output 204 [2021-11-25 20:36:18,934 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:18,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 204 treesize of output 196 [2021-11-25 20:36:32,048 INFO L354 Elim1Store]: treesize reduction 5, result has 93.8 percent of original size [2021-11-25 20:36:32,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 100 treesize of output 165 [2021-11-25 20:36:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:32,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689495912] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:36:32,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [40438111] [2021-11-25 20:36:32,354 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-25 20:36:32,356 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:36:32,356 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:36:32,356 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:36:32,357 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:36:32,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:36:32,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:32,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:36:32,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:32,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:32,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:36:32,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:32,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:36:32,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:36:32,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:32,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:36:32,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:32,670 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:36:32,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:36:32,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 21 [2021-11-25 20:36:32,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 59 [2021-11-25 20:36:32,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:32,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:32,756 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:36:32,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 150 [2021-11-25 20:36:32,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,780 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:36:32,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 122 [2021-11-25 20:36:32,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:32,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 21 [2021-11-25 20:36:33,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:36:33,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:36:33,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:36:33,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:33,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,113 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:33,123 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:36:33,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:36:33,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2021-11-25 20:36:33,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 21 [2021-11-25 20:36:33,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,200 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:33,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:33,213 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:36:33,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 150 [2021-11-25 20:36:33,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,238 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:36:33,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 122 [2021-11-25 20:36:33,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:33,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 21 [2021-11-25 20:36:34,097 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:36:38,390 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8682#(and (= |ULTIMATE.start_main_~root~0#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~n~0#1.base|) 1)) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~pred~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~pred~0#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:36:38,390 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:36:38,393 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:36:38,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 27 [2021-11-25 20:36:38,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017491382] [2021-11-25 20:36:38,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:36:38,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-25 20:36:38,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:38,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-25 20:36:38,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=1997, Unknown=33, NotChecked=96, Total=2550 [2021-11-25 20:36:38,399 INFO L87 Difference]: Start difference. First operand 239 states and 323 transitions. Second operand has 28 states, 27 states have (on average 2.4814814814814814) internal successors, (67), 28 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:39,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:39,135 INFO L93 Difference]: Finished difference Result 469 states and 616 transitions. [2021-11-25 20:36:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 20:36:39,136 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.4814814814814814) internal successors, (67), 28 states have internal predecessors, (67), 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 28 [2021-11-25 20:36:39,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:39,138 INFO L225 Difference]: With dead ends: 469 [2021-11-25 20:36:39,138 INFO L226 Difference]: Without dead ends: 469 [2021-11-25 20:36:39,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=571, Invalid=2588, Unknown=37, NotChecked=110, Total=3306 [2021-11-25 20:36:39,140 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 478 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 2028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1200 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:39,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 515 Invalid, 2028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 742 Invalid, 0 Unknown, 1200 Unchecked, 0.5s Time] [2021-11-25 20:36:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2021-11-25 20:36:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 314. [2021-11-25 20:36:39,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 286 states have (on average 1.5524475524475525) internal successors, (444), 313 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 444 transitions. [2021-11-25 20:36:39,151 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 444 transitions. Word has length 28 [2021-11-25 20:36:39,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:39,152 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 444 transitions. [2021-11-25 20:36:39,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.4814814814814814) internal successors, (67), 28 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:39,152 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 444 transitions. [2021-11-25 20:36:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:36:39,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:39,154 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:39,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:39,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:39,378 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:36:39,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:39,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1831783503, now seen corresponding path program 1 times [2021-11-25 20:36:39,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:39,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197649163] [2021-11-25 20:36:39,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:39,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:39,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:39,592 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:39,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197649163] [2021-11-25 20:36:39,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197649163] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:39,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119162968] [2021-11-25 20:36:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:39,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:39,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:39,617 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:39,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:36:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:39,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-25 20:36:39,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:39,819 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:36:39,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:36:39,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:39,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:39,926 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:36:39,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2021-11-25 20:36:39,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-25 20:36:39,980 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:36:39,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2021-11-25 20:36:39,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-25 20:36:40,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 20:36:40,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 14 [2021-11-25 20:36:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:40,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:36:40,278 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:40,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 44 [2021-11-25 20:36:40,325 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_681 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem16#1.base| v_ArrVal_681) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))) (forall ((v_prenex_3 (Array Int Int))) (<= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem16#1.base| v_prenex_3) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) (+ 4 |c_ULTIMATE.start_main_#t~mem16#1.offset|))) (forall ((v_ArrVal_680 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem16#1.base| v_ArrVal_680) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) |c_ULTIMATE.start_main_#t~mem16#1.base|))) is different from false [2021-11-25 20:36:40,345 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_3 (Array Int Int))) (<= (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) v_prenex_3) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) 4))) (forall ((v_ArrVal_681 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) v_ArrVal_681) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))) (forall ((v_ArrVal_680 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|))) (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_680) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) .cse0)))) is different from false [2021-11-25 20:36:40,362 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_678 (Array Int Int)) (v_ArrVal_679 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_679))) (<= (select (select (store .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_678) |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) v_prenex_3) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) (+ (select (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) 4)))) (forall ((v_ArrVal_678 (Array Int Int)) (v_ArrVal_679 (Array Int Int)) (v_ArrVal_681 (Array Int Int))) (<= 0 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_679) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_678) |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) v_ArrVal_681) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))) (forall ((v_ArrVal_678 (Array Int Int)) (v_ArrVal_680 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_678))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|))) (= (select (select (store .cse1 .cse2 v_ArrVal_680) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) .cse2))))) is different from false [2021-11-25 20:36:40,392 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_678 (Array Int Int)) (v_ArrVal_679 (Array Int Int)) (v_ArrVal_681 (Array Int Int))) (<= 0 (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|))) (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_679) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_678) |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) v_ArrVal_681)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))) (forall ((v_ArrVal_678 (Array Int Int)) (v_ArrVal_679 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_679))) (<= (select (select (store .cse1 (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_678) |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) v_prenex_3) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) (+ (select (select .cse1 |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) 4))))) (forall ((v_ArrVal_678 (Array Int Int)) (v_ArrVal_680 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|) v_ArrVal_678))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|))) (= (select (select (store .cse3 .cse4 v_ArrVal_680) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) .cse4))))) is different from false [2021-11-25 20:36:40,405 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:40,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 37 [2021-11-25 20:36:40,410 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:40,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2021-11-25 20:36:40,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2021-11-25 20:36:40,426 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:40,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 100 treesize of output 99 [2021-11-25 20:36:40,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 52 [2021-11-25 20:36:40,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 50 [2021-11-25 20:36:40,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2021-11-25 20:36:40,543 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:36:40,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 1 [2021-11-25 20:36:40,549 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:36:40,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 1 [2021-11-25 20:36:40,696 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-25 20:36:40,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 12 [2021-11-25 20:36:40,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:40,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119162968] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:36:40,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [58595271] [2021-11-25 20:36:40,709 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-25 20:36:40,709 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:36:40,709 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:36:40,710 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:36:40,710 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:36:40,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:36:40,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:40,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:36:40,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:36:40,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:40,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:36:40,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:36:40,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:36:40,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:36:40,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:40,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:36:40,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,972 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:40,980 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:36:40,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:36:40,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2021-11-25 20:36:40,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:40,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 21 [2021-11-25 20:36:41,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:41,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:41,064 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:36:41,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 150 [2021-11-25 20:36:41,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,089 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:36:41,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 122 [2021-11-25 20:36:41,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 21 [2021-11-25 20:36:41,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:36:41,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:36:41,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:36:41,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:36:41,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:41,414 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:36:41,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:36:41,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2021-11-25 20:36:41,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 21 [2021-11-25 20:36:41,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:41,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:41,494 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:36:41,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 150 [2021-11-25 20:36:41,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,512 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:36:41,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 122 [2021-11-25 20:36:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:41,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 21 [2021-11-25 20:36:42,338 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:36:46,882 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9698#(and (= |ULTIMATE.start_main_~root~0#1.offset| 0) (or (< |ULTIMATE.start_main_~n~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_main_~n~0#1.base|) (+ |ULTIMATE.start_main_~n~0#1.offset| 4))) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~pred~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~pred~0#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:36:46,882 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:36:46,882 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:36:46,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 29 [2021-11-25 20:36:46,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531845418] [2021-11-25 20:36:46,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:36:46,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-25 20:36:46,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:46,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-25 20:36:46,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=407, Invalid=1957, Unknown=4, NotChecked=388, Total=2756 [2021-11-25 20:36:46,885 INFO L87 Difference]: Start difference. First operand 314 states and 444 transitions. Second operand has 30 states, 29 states have (on average 2.689655172413793) internal successors, (78), 30 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:49,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:49,211 INFO L93 Difference]: Finished difference Result 914 states and 1159 transitions. [2021-11-25 20:36:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-25 20:36:49,213 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.689655172413793) internal successors, (78), 30 states have internal predecessors, (78), 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 28 [2021-11-25 20:36:49,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:49,220 INFO L225 Difference]: With dead ends: 914 [2021-11-25 20:36:49,220 INFO L226 Difference]: Without dead ends: 914 [2021-11-25 20:36:49,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 54 SyntacticMatches, 6 SemanticMatches, 80 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2318 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1104, Invalid=4914, Unknown=4, NotChecked=620, Total=6642 [2021-11-25 20:36:49,223 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 995 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 2912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1304 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:49,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 703 Invalid, 2912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 1372 Invalid, 0 Unknown, 1304 Unchecked, 1.0s Time] [2021-11-25 20:36:49,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-11-25 20:36:49,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 334. [2021-11-25 20:36:49,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 312 states have (on average 1.4967948717948718) internal successors, (467), 333 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:49,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 467 transitions. [2021-11-25 20:36:49,237 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 467 transitions. Word has length 28 [2021-11-25 20:36:49,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:49,238 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 467 transitions. [2021-11-25 20:36:49,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.689655172413793) internal successors, (78), 30 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:49,238 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 467 transitions. [2021-11-25 20:36:49,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:36:49,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:49,239 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:49,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-25 20:36:49,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-25 20:36:49,466 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:36:49,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:49,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1831777552, now seen corresponding path program 1 times [2021-11-25 20:36:49,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:49,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385131324] [2021-11-25 20:36:49,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:49,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:49,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:36:49,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:49,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385131324] [2021-11-25 20:36:49,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385131324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:49,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:49,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:36:49,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167140522] [2021-11-25 20:36:49,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:49,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:36:49,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:49,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:36:49,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:36:49,541 INFO L87 Difference]: Start difference. First operand 334 states and 467 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:49,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:49,668 INFO L93 Difference]: Finished difference Result 334 states and 463 transitions. [2021-11-25 20:36:49,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:36:49,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 28 [2021-11-25 20:36:49,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:49,671 INFO L225 Difference]: With dead ends: 334 [2021-11-25 20:36:49,671 INFO L226 Difference]: Without dead ends: 334 [2021-11-25 20:36:49,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:36:49,672 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 5 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:49,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 152 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:36:49,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-11-25 20:36:49,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 331. [2021-11-25 20:36:49,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 309 states have (on average 1.4886731391585761) internal successors, (460), 330 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 460 transitions. [2021-11-25 20:36:49,682 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 460 transitions. Word has length 28 [2021-11-25 20:36:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:49,682 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 460 transitions. [2021-11-25 20:36:49,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 460 transitions. [2021-11-25 20:36:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:36:49,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:49,683 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:49,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 20:36:49,683 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:36:49,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:49,684 INFO L85 PathProgramCache]: Analyzing trace with hash -69135879, now seen corresponding path program 1 times [2021-11-25 20:36:49,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:49,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600326190] [2021-11-25 20:36:49,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:49,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:36:49,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:49,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600326190] [2021-11-25 20:36:49,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600326190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:49,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:49,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 20:36:49,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273913768] [2021-11-25 20:36:49,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:49,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 20:36:49,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:49,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 20:36:49,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:36:49,930 INFO L87 Difference]: Start difference. First operand 331 states and 460 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:50,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:50,328 INFO L93 Difference]: Finished difference Result 401 states and 538 transitions. [2021-11-25 20:36:50,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 20:36:50,329 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 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 28 [2021-11-25 20:36:50,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:50,331 INFO L225 Difference]: With dead ends: 401 [2021-11-25 20:36:50,331 INFO L226 Difference]: Without dead ends: 401 [2021-11-25 20:36:50,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-11-25 20:36:50,332 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 94 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:50,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 363 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 20:36:50,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-11-25 20:36:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 375. [2021-11-25 20:36:50,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 353 states have (on average 1.4872521246458923) internal successors, (525), 374 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:50,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 525 transitions. [2021-11-25 20:36:50,348 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 525 transitions. Word has length 28 [2021-11-25 20:36:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:50,349 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 525 transitions. [2021-11-25 20:36:50,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 525 transitions. [2021-11-25 20:36:50,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 20:36:50,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:50,350 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:50,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 20:36:50,350 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:36:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1525008258, now seen corresponding path program 1 times [2021-11-25 20:36:50,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:50,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3308637] [2021-11-25 20:36:50,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:50,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:50,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:50,560 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:50,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3308637] [2021-11-25 20:36:50,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3308637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:50,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:50,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 20:36:50,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441391798] [2021-11-25 20:36:50,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:50,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:36:50,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:50,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:36:50,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:36:50,562 INFO L87 Difference]: Start difference. First operand 375 states and 525 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:51,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:51,063 INFO L93 Difference]: Finished difference Result 530 states and 700 transitions. [2021-11-25 20:36:51,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 20:36:51,063 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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 29 [2021-11-25 20:36:51,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:51,066 INFO L225 Difference]: With dead ends: 530 [2021-11-25 20:36:51,066 INFO L226 Difference]: Without dead ends: 528 [2021-11-25 20:36:51,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2021-11-25 20:36:51,067 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 174 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:51,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 378 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:36:51,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-11-25 20:36:51,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 377. [2021-11-25 20:36:51,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 355 states have (on average 1.4845070422535211) internal successors, (527), 376 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 527 transitions. [2021-11-25 20:36:51,083 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 527 transitions. Word has length 29 [2021-11-25 20:36:51,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:51,084 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 527 transitions. [2021-11-25 20:36:51,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:51,084 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 527 transitions. [2021-11-25 20:36:51,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 20:36:51,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:51,085 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:51,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-25 20:36:51,085 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:36:51,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:51,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1577460565, now seen corresponding path program 1 times [2021-11-25 20:36:51,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:51,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842561654] [2021-11-25 20:36:51,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:51,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:51,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:51,311 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:51,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842561654] [2021-11-25 20:36:51,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842561654] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:36:51,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627763232] [2021-11-25 20:36:51,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:51,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:51,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:51,312 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:51,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:36:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:51,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-25 20:36:51,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:51,522 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:36:51,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:36:51,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:36:51,657 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:36:51,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2021-11-25 20:36:51,718 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:36:51,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2021-11-25 20:36:51,925 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:36:51,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 13 [2021-11-25 20:36:51,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:51,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:36:52,299 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:52,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 37 [2021-11-25 20:36:52,309 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:52,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 170 treesize of output 149 [2021-11-25 20:36:52,322 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:36:52,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 130 treesize of output 122 [2021-11-25 20:36:52,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 102 [2021-11-25 20:37:02,750 INFO L354 Elim1Store]: treesize reduction 5, result has 95.9 percent of original size [2021-11-25 20:37:02,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 129 treesize of output 232 [2021-11-25 20:37:03,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:03,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627763232] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:37:03,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1886897523] [2021-11-25 20:37:03,923 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2021-11-25 20:37:03,923 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:37:03,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:37:03,924 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:37:03,924 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:37:03,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:03,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:03,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:37:03,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:03,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:37:03,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:37:03,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:37:03,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:03,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:37:03,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:37:04,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:37:04,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:37:04,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,220 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:04,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 23 [2021-11-25 20:37:04,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,233 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:04,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 23 [2021-11-25 20:37:04,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-25 20:37:04,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:04,279 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:37:04,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 200 treesize of output 127 [2021-11-25 20:37:04,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 98 [2021-11-25 20:37:04,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 21 [2021-11-25 20:37:04,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,337 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:04,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,338 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:04,349 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:37:04,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2021-11-25 20:37:04,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 64 treesize of output 21 [2021-11-25 20:37:04,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,374 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:37:04,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 101 [2021-11-25 20:37:04,564 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:04,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:04,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:04,620 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:37:04,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2021-11-25 20:37:04,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,636 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:37:04,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 138 [2021-11-25 20:37:04,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:04,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 64 treesize of output 21 [2021-11-25 20:37:05,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:05,570 INFO L354 Elim1Store]: treesize reduction 54, result has 44.9 percent of original size [2021-11-25 20:37:05,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 164 treesize of output 201 [2021-11-25 20:37:05,750 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:05,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:05,794 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-25 20:37:05,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 1 [2021-11-25 20:37:05,824 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:05,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:05,869 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:05,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:05,929 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:05,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:06,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,028 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:06,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:06,055 INFO L354 Elim1Store]: treesize reduction 22, result has 50.0 percent of original size [2021-11-25 20:37:06,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 495 treesize of output 492 [2021-11-25 20:37:06,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 624 treesize of output 603 [2021-11-25 20:37:06,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:06,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:06,103 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:37:06,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 627 treesize of output 612 [2021-11-25 20:37:06,344 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:37:10,598 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13655#(and (= |ULTIMATE.start_main_~root~0#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~n~0#1.base|) 1)) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~pred~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~pred~0#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:37:10,598 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:37:10,598 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:37:10,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 31 [2021-11-25 20:37:10,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809008493] [2021-11-25 20:37:10,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:37:10,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-25 20:37:10,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:10,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-25 20:37:10,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=2518, Unknown=19, NotChecked=0, Total=2970 [2021-11-25 20:37:10,600 INFO L87 Difference]: Start difference. First operand 377 states and 527 transitions. Second operand has 33 states, 32 states have (on average 2.40625) internal successors, (77), 32 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:11,364 INFO L93 Difference]: Finished difference Result 560 states and 752 transitions. [2021-11-25 20:37:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 20:37:11,364 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.40625) internal successors, (77), 32 states have internal predecessors, (77), 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 29 [2021-11-25 20:37:11,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:11,367 INFO L225 Difference]: With dead ends: 560 [2021-11-25 20:37:11,367 INFO L226 Difference]: Without dead ends: 560 [2021-11-25 20:37:11,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 39 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1781 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=588, Invalid=3175, Unknown=19, NotChecked=0, Total=3782 [2021-11-25 20:37:11,369 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 528 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 907 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:11,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 553 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 923 Invalid, 0 Unknown, 907 Unchecked, 0.6s Time] [2021-11-25 20:37:11,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-11-25 20:37:11,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 442. [2021-11-25 20:37:11,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 420 states have (on average 1.4785714285714286) internal successors, (621), 441 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 621 transitions. [2021-11-25 20:37:11,381 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 621 transitions. Word has length 29 [2021-11-25 20:37:11,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:11,382 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 621 transitions. [2021-11-25 20:37:11,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.40625) internal successors, (77), 32 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 621 transitions. [2021-11-25 20:37:11,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 20:37:11,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:11,383 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:37:11,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:11,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-25 20:37:11,610 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:37:11,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:11,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1577460566, now seen corresponding path program 1 times [2021-11-25 20:37:11,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:11,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872087880] [2021-11-25 20:37:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:11,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:11,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:11,873 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:11,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872087880] [2021-11-25 20:37:11,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872087880] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:37:11,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794997149] [2021-11-25 20:37:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:11,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:11,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:11,875 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:11,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:37:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:11,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-25 20:37:11,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:12,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:37:12,094 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:37:12,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:37:12,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:37:12,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:37:12,205 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:37:12,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:37:12,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:37:12,257 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:37:12,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:37:12,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:37:12,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:12,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 7 [2021-11-25 20:37:12,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:12,451 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:12,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 16 [2021-11-25 20:37:12,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:12,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:37:13,103 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:13,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 125 [2021-11-25 20:37:13,108 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:13,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 95 [2021-11-25 20:37:13,133 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:13,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 462 treesize of output 405 [2021-11-25 20:37:13,151 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:13,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1083 treesize of output 1032 [2021-11-25 20:37:13,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 993 treesize of output 929 [2021-11-25 20:37:13,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 929 treesize of output 897 [2021-11-25 20:37:13,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 897 treesize of output 833 [2021-11-25 20:37:13,214 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:13,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 833 treesize of output 734 [2021-11-25 20:37:13,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 721 treesize of output 705 [2021-11-25 20:37:13,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 705 treesize of output 689 [2021-11-25 20:37:13,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 689 treesize of output 681 [2021-11-25 20:37:24,066 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-25 20:37:24,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 12 [2021-11-25 20:37:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:24,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794997149] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:37:24,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [540904590] [2021-11-25 20:37:24,147 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2021-11-25 20:37:24,148 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:37:24,148 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:37:24,148 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:37:24,148 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:37:24,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:37:24,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:37:24,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:37:24,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:37:24,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:37:24,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:37:24,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:37:24,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:37:24,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 23 [2021-11-25 20:37:24,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-25 20:37:24,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,433 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 23 [2021-11-25 20:37:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,473 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:37:24,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 200 treesize of output 127 [2021-11-25 20:37:24,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 98 [2021-11-25 20:37:24,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 21 [2021-11-25 20:37:24,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,556 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:37:24,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2021-11-25 20:37:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 64 treesize of output 21 [2021-11-25 20:37:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,585 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:37:24,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 101 [2021-11-25 20:37:24,764 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:24,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,822 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,824 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,854 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:37:24,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 164 [2021-11-25 20:37:24,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,876 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:37:24,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 138 [2021-11-25 20:37:24,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 21 [2021-11-25 20:37:25,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,903 INFO L354 Elim1Store]: treesize reduction 54, result has 44.9 percent of original size [2021-11-25 20:37:25,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 164 treesize of output 201 [2021-11-25 20:37:26,146 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:26,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:26,177 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:26,222 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:26,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:26,280 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:26,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:26,350 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:26,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:26,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 646 treesize of output 617 [2021-11-25 20:37:26,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:26,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:26,523 INFO L354 Elim1Store]: treesize reduction 22, result has 50.0 percent of original size [2021-11-25 20:37:26,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 649 treesize of output 632 [2021-11-25 20:37:26,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:26,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:26,555 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-25 20:37:26,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 793 treesize of output 764 [2021-11-25 20:37:26,768 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:37:30,910 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14898#(and (= |ULTIMATE.start_main_~root~0#1.offset| 0) (or (< |ULTIMATE.start_main_~n~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_main_~n~0#1.base|) (+ |ULTIMATE.start_main_~n~0#1.offset| 4))) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~pred~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~pred~0#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:37:30,910 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:37:30,911 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:37:30,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 12] total 32 [2021-11-25 20:37:30,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059563401] [2021-11-25 20:37:30,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:37:30,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-25 20:37:30,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:30,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-25 20:37:30,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2632, Unknown=26, NotChecked=0, Total=3080 [2021-11-25 20:37:30,913 INFO L87 Difference]: Start difference. First operand 442 states and 621 transitions. Second operand has 34 states, 33 states have (on average 2.515151515151515) internal successors, (83), 33 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:32,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:32,380 INFO L93 Difference]: Finished difference Result 696 states and 923 transitions. [2021-11-25 20:37:32,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 20:37:32,380 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.515151515151515) internal successors, (83), 33 states have internal predecessors, (83), 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 29 [2021-11-25 20:37:32,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:32,384 INFO L225 Difference]: With dead ends: 696 [2021-11-25 20:37:32,384 INFO L226 Difference]: Without dead ends: 696 [2021-11-25 20:37:32,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1967 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=821, Invalid=4409, Unknown=26, NotChecked=0, Total=5256 [2021-11-25 20:37:32,387 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 620 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1051 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:32,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 850 Invalid, 2426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1255 Invalid, 0 Unknown, 1051 Unchecked, 0.8s Time] [2021-11-25 20:37:32,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-11-25 20:37:32,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 467. [2021-11-25 20:37:32,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 445 states have (on average 1.4808988764044944) internal successors, (659), 466 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:32,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 659 transitions. [2021-11-25 20:37:32,400 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 659 transitions. Word has length 29 [2021-11-25 20:37:32,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:32,401 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 659 transitions. [2021-11-25 20:37:32,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.515151515151515) internal successors, (83), 33 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:32,401 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 659 transitions. [2021-11-25 20:37:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:37:32,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:32,402 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:37:32,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:32,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:32,622 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:37:32,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:32,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1029363530, now seen corresponding path program 1 times [2021-11-25 20:37:32,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:32,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149550562] [2021-11-25 20:37:32,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:32,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:32,938 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:32,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149550562] [2021-11-25 20:37:32,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149550562] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:37:32,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513739876] [2021-11-25 20:37:32,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:32,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:32,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:32,940 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:32,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 20:37:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:33,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-25 20:37:33,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:33,210 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:33,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:37:33,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:37:33,340 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:37:33,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2021-11-25 20:37:33,413 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:37:33,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2021-11-25 20:37:33,485 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:37:33,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:37:33,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:33,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 39 treesize of output 30 [2021-11-25 20:37:33,668 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:37:33,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 49 [2021-11-25 20:37:33,736 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:37:33,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 49 [2021-11-25 20:37:33,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2021-11-25 20:37:33,911 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:33,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:37:33,971 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1051 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) v_ArrVal_1051) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|)) 1)) is different from false [2021-11-25 20:37:33,976 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1051 (Array Int Int)) (v_ArrVal_1050 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem21#1.base| v_ArrVal_1050))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) v_ArrVal_1051)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|)) 1)) is different from false [2021-11-25 20:37:34,042 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1051 (Array Int Int)) (v_ArrVal_1050 (Array Int Int))) (= (select |c_#valid| (select (select (let ((.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1 |c_ULTIMATE.start_main_#t~malloc20#1.base|)) |c_ULTIMATE.start_main_#t~malloc20#1.base| v_ArrVal_1050))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1051))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|)) 1)) is different from false [2021-11-25 20:37:34,054 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1047 Int) (|v_ULTIMATE.start_main_#t~malloc20#1.base_29| Int) (v_ArrVal_1051 (Array Int Int)) (v_ArrVal_1050 (Array Int Int))) (or (= (select (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc20#1.base_29| v_ArrVal_1047) (select (select (let ((.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc20#1.base_29|)) |v_ULTIMATE.start_main_#t~malloc20#1.base_29| v_ArrVal_1050))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1051))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|)) 1) (not (= 0 (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc20#1.base_29|))))) is different from false [2021-11-25 20:37:34,260 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:34,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 108 [2021-11-25 20:37:34,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:34,354 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:34,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1321664 treesize of output 1258602 [2021-11-25 20:37:38,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1258588 treesize of output 1199964 [2021-11-25 20:37:42,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1199964 treesize of output 1170652 [2021-11-25 20:37:46,525 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:46,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1184476 treesize of output 1178280 [2021-11-25 20:37:50,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1190944 treesize of output 1181504 [2021-11-25 20:37:55,007 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-25 20:37:55,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [956078707] [2021-11-25 20:37:55,009 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-25 20:37:55,010 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:37:55,010 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:37:55,010 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:37:55,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:37:55,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:37:55,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 20:37:55,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:37:55,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:37:55,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:37:55,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:37:55,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:37:55,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:37:55,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:37:55,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:37:55,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:37:55,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,357 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,367 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:37:55,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:37:55,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2021-11-25 20:37:55,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 21 [2021-11-25 20:37:55,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,434 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:37:55,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 150 [2021-11-25 20:37:55,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,451 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:37:55,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 122 [2021-11-25 20:37:55,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 21 [2021-11-25 20:37:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2021-11-25 20:37:55,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-25 20:37:55,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,589 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,590 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,591 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,602 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:37:55,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 158 treesize of output 111 [2021-11-25 20:37:55,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2021-11-25 20:37:55,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,660 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,686 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:37:55,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 302 treesize of output 198 [2021-11-25 20:37:55,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:37:55,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 21 [2021-11-25 20:37:55,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,769 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,791 INFO L354 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2021-11-25 20:37:55,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 336 treesize of output 223 [2021-11-25 20:37:55,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,813 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:37:55,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 172 treesize of output 150 [2021-11-25 20:37:55,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 21 [2021-11-25 20:37:55,952 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:37:55,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:37:55,972 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:55,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:55,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:37:55,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:37:55,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:37:56,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,012 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:37:56,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:37:56,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:37:56,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:37:56,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,040 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,042 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:37:56,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 176 treesize of output 125 [2021-11-25 20:37:56,054 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:37:56,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:37:56,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:37:56,115 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:37:56,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:37:56,176 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:37:56,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:37:56,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,206 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,218 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:37:56,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 82 [2021-11-25 20:37:56,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2021-11-25 20:37:56,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:37:56,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,285 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:37:56,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:37:56,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:37:56,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:37:56,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,464 INFO L354 Elim1Store]: treesize reduction 230, result has 14.2 percent of original size [2021-11-25 20:37:56,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 641 treesize of output 434 [2021-11-25 20:37:56,511 INFO L354 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2021-11-25 20:37:56,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 549 treesize of output 506 [2021-11-25 20:37:56,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:56,585 INFO L354 Elim1Store]: treesize reduction 252, result has 17.1 percent of original size [2021-11-25 20:37:56,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 582 treesize of output 530 [2021-11-25 20:37:58,018 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:37:58,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:37:58,035 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:58,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:58,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:37:58,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:37:58,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:37:58,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,078 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:37:58,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:37:58,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:37:58,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:37:58,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,110 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:37:58,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 168 treesize of output 117 [2021-11-25 20:37:58,122 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:37:58,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 96 [2021-11-25 20:37:58,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:37:58,197 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:37:58,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:37:58,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-25 20:37:58,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:37:58,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,234 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,242 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:37:58,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 82 [2021-11-25 20:37:58,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2021-11-25 20:37:58,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,292 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,293 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,310 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:37:58,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:37:58,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:37:58,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:37:58,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,439 INFO L354 Elim1Store]: treesize reduction 230, result has 14.2 percent of original size [2021-11-25 20:37:58,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 641 treesize of output 434 [2021-11-25 20:37:58,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:58,497 INFO L354 Elim1Store]: treesize reduction 252, result has 17.1 percent of original size [2021-11-25 20:37:58,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 631 treesize of output 567 [2021-11-25 20:37:58,525 INFO L354 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2021-11-25 20:37:58,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 549 treesize of output 506 [2021-11-25 20:37:59,775 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:37:59,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:37:59,794 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:37:59,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:37:59,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:37:59,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:37:59,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:37:59,836 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:37:59,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:37:59,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:37:59,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:37:59,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:59,875 INFO L354 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2021-11-25 20:37:59,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 176 treesize of output 125 [2021-11-25 20:37:59,899 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:37:59,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:37:59,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:37:59,961 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:37:59,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2021-11-25 20:37:59,994 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:37:59,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:00,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:00,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,058 INFO L354 Elim1Store]: treesize reduction 101, result has 11.4 percent of original size [2021-11-25 20:38:00,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 113 [2021-11-25 20:38:00,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,072 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:00,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 109 treesize of output 94 [2021-11-25 20:38:00,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,133 INFO L354 Elim1Store]: treesize reduction 110, result has 14.7 percent of original size [2021-11-25 20:38:00,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 308 treesize of output 204 [2021-11-25 20:38:00,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,148 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:00,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 1 case distinctions, treesize of input 208 treesize of output 169 [2021-11-25 20:38:00,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:38:00,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,230 INFO L354 Elim1Store]: treesize reduction 166, result has 12.6 percent of original size [2021-11-25 20:38:00,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 319 treesize of output 210 [2021-11-25 20:38:00,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,246 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:38:00,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 166 [2021-11-25 20:38:00,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:38:00,502 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:38:00,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:38:00,522 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:00,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:00,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:00,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:00,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:00,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:00,563 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:38:00,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:00,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:00,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:38:00,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,597 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:00,600 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:00,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 176 treesize of output 125 [2021-11-25 20:38:00,612 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:00,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:38:00,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:00,701 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:00,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:00,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-25 20:38:00,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:00,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:00,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:00,769 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:00,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 82 [2021-11-25 20:38:00,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2021-11-25 20:38:00,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:00,817 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:00,839 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:38:00,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:38:00,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:00,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:38:00,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,899 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:00,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,938 INFO L354 Elim1Store]: treesize reduction 166, result has 12.6 percent of original size [2021-11-25 20:38:00,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 319 treesize of output 210 [2021-11-25 20:38:00,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,960 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:38:00,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 166 [2021-11-25 20:38:00,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:38:01,335 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:01,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:01,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:38:01,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:01,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:01,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:01,387 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:01,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:01,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:01,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:38:01,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,426 INFO L354 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2021-11-25 20:38:01,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 176 treesize of output 125 [2021-11-25 20:38:01,438 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:01,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:38:01,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:38:01,503 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:38:01,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2021-11-25 20:38:01,538 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:01,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:01,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:01,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,574 INFO L354 Elim1Store]: treesize reduction 101, result has 11.4 percent of original size [2021-11-25 20:38:01,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 136 treesize of output 102 [2021-11-25 20:38:01,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,584 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:01,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 94 treesize of output 83 [2021-11-25 20:38:01,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,642 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 20:38:01,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:38:01,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:01,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:38:01,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,687 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:01,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,723 INFO L354 Elim1Store]: treesize reduction 160, result has 13.0 percent of original size [2021-11-25 20:38:01,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 307 treesize of output 198 [2021-11-25 20:38:01,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,740 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:38:01,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 172 treesize of output 150 [2021-11-25 20:38:01,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 1 [2021-11-25 20:38:02,033 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:02,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:02,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:38:02,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:02,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:02,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:02,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:02,081 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:38:02,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:02,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:02,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:38:02,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:02,110 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:02,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 176 treesize of output 125 [2021-11-25 20:38:02,122 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:02,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:38:02,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:02,188 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:38:02,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:38:02,220 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:02,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:02,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,240 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:02,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,241 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:02,250 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:02,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 82 [2021-11-25 20:38:02,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2021-11-25 20:38:02,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:02,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:02,296 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:02,312 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:38:02,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:38:02,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:02,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:38:02,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:02,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,391 INFO L354 Elim1Store]: treesize reduction 160, result has 13.0 percent of original size [2021-11-25 20:38:02,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 307 treesize of output 198 [2021-11-25 20:38:02,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,407 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:38:02,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 172 treesize of output 150 [2021-11-25 20:38:02,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 1 [2021-11-25 20:38:02,773 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:38:02,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:38:02,808 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:02,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:02,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:02,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:02,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:02,865 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:02,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:02,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:02,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:38:02,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,901 INFO L354 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2021-11-25 20:38:02,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 176 treesize of output 125 [2021-11-25 20:38:02,913 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:02,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:38:02,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:38:03,004 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:38:03,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2021-11-25 20:38:03,041 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:03,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:03,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:03,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,090 INFO L354 Elim1Store]: treesize reduction 101, result has 11.4 percent of original size [2021-11-25 20:38:03,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 113 [2021-11-25 20:38:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,099 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:03,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 109 treesize of output 94 [2021-11-25 20:38:03,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,153 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 20:38:03,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:38:03,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:03,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:38:03,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,240 INFO L354 Elim1Store]: treesize reduction 166, result has 12.6 percent of original size [2021-11-25 20:38:03,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 319 treesize of output 210 [2021-11-25 20:38:03,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,256 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:38:03,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 166 [2021-11-25 20:38:03,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 1 [2021-11-25 20:38:03,514 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:38:03,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:38:03,532 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:03,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:03,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:03,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:03,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:03,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,575 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:38:03,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:03,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:03,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:38:03,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,626 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:03,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 176 treesize of output 125 [2021-11-25 20:38:03,638 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:03,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:38:03,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:03,707 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:03,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:03,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-25 20:38:03,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:03,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,748 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:03,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 82 [2021-11-25 20:38:03,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2021-11-25 20:38:03,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,801 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:38:03,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:38:03,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:03,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:38:03,861 INFO L354 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2021-11-25 20:38:03,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 110 [2021-11-25 20:38:03,881 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-25 20:38:03,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 89 [2021-11-25 20:38:03,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:03,996 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:38:03,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:38:04,014 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:04,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:04,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:04,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:04,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:04,061 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:04,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:04,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:04,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:04,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,103 INFO L354 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2021-11-25 20:38:04,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 168 treesize of output 117 [2021-11-25 20:38:04,115 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:04,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 96 [2021-11-25 20:38:04,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:38:04,181 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:38:04,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2021-11-25 20:38:04,219 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:04,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:04,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,254 INFO L354 Elim1Store]: treesize reduction 97, result has 11.8 percent of original size [2021-11-25 20:38:04,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 143 treesize of output 105 [2021-11-25 20:38:04,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,264 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:04,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 90 treesize of output 80 [2021-11-25 20:38:04,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:04,309 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:38:06,333 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16313#(and (or (and (exists ((|v_ULTIMATE.start_main_~n~0#1.offset_173| Int) (|v_ULTIMATE.start_main_~n~0#1.base_191| Int)) (and (<= 0 |v_ULTIMATE.start_main_~n~0#1.offset_173|) (= (select |#valid| |v_ULTIMATE.start_main_~n~0#1.base_191|) 1) (<= (+ |v_ULTIMATE.start_main_~n~0#1.offset_173| 4) (select |#length| |v_ULTIMATE.start_main_~n~0#1.base_191|)) (= |ULTIMATE.start_main_~n~0#1.offset| (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_191|) |v_ULTIMATE.start_main_~n~0#1.offset_173|)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_191|) |v_ULTIMATE.start_main_~n~0#1.offset_173|) |ULTIMATE.start_main_~n~0#1.base|))) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~root~0#1.offset|) (<= |ULTIMATE.start_main_~root~0#1.offset| 0) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|)) (and (= |ULTIMATE.start_main_~root~0#1.offset| |ULTIMATE.start_main_~n~0#1.offset|) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~root~0#1.offset|) (<= |ULTIMATE.start_main_~root~0#1.offset| 0) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1.base| |ULTIMATE.start_main_~root~0#1.base|))) (not (= (select |#valid| |ULTIMATE.start_main_~n~0#1.base|) 1)))' at error location [2021-11-25 20:38:06,333 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:38:06,333 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:38:06,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-25 20:38:06,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709247679] [2021-11-25 20:38:06,334 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-25 20:38:06,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 20:38:06,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:38:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 20:38:06,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=2680, Unknown=29, NotChecked=444, Total=3540 [2021-11-25 20:38:06,336 INFO L87 Difference]: Start difference. First operand 467 states and 659 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:38:07,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:38:07,296 INFO L93 Difference]: Finished difference Result 836 states and 1128 transitions. [2021-11-25 20:38:07,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 20:38:07,296 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 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 31 [2021-11-25 20:38:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:38:07,299 INFO L225 Difference]: With dead ends: 836 [2021-11-25 20:38:07,300 INFO L226 Difference]: Without dead ends: 836 [2021-11-25 20:38:07,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2228 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=766, Invalid=5066, Unknown=36, NotChecked=612, Total=6480 [2021-11-25 20:38:07,303 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 334 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:38:07,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 333 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 20:38:07,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-11-25 20:38:07,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 551. [2021-11-25 20:38:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 529 states have (on average 1.4650283553875236) internal successors, (775), 550 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:38:07,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 775 transitions. [2021-11-25 20:38:07,317 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 775 transitions. Word has length 31 [2021-11-25 20:38:07,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:38:07,318 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 775 transitions. [2021-11-25 20:38:07,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:38:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 775 transitions. [2021-11-25 20:38:07,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:38:07,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:38:07,319 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:38:07,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 20:38:07,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-25 20:38:07,533 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:38:07,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:38:07,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1029363531, now seen corresponding path program 1 times [2021-11-25 20:38:07,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:38:07,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951626821] [2021-11-25 20:38:07,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:07,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:38:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:07,893 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:38:07,893 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:38:07,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951626821] [2021-11-25 20:38:07,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951626821] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:38:07,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060830084] [2021-11-25 20:38:07,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:38:07,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:38:07,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:38:07,899 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:38:07,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 20:38:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:38:08,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 74 conjunts are in the unsatisfiable core [2021-11-25 20:38:08,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:38:08,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:38:08,190 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:08,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:08,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:08,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:08,371 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:38:08,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 50 [2021-11-25 20:38:08,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-25 20:38:08,471 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:38:08,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 50 [2021-11-25 20:38:08,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-25 20:38:08,555 INFO L354 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2021-11-25 20:38:08,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 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 [2021-11-25 20:38:08,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 20:38:08,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:08,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 47 treesize of output 34 [2021-11-25 20:38:08,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:08,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:38:08,763 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:38:08,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 65 [2021-11-25 20:38:08,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 29 treesize of output 29 [2021-11-25 20:38:08,852 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:38:08,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 65 [2021-11-25 20:38:08,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 29 treesize of output 29 [2021-11-25 20:38:09,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 25 [2021-11-25 20:38:09,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-25 20:38:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:38:09,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:38:09,206 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1177 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem22#1.base| v_ArrVal_1178) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem22#1.base| v_ArrVal_1177) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|)))) (forall ((v_ArrVal_1178 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem22#1.base| v_ArrVal_1178) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|)))) is different from false [2021-11-25 20:38:09,216 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1177 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1178) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1177) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))))) (forall ((v_ArrVal_1178 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) v_ArrVal_1178) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|)))) is different from false [2021-11-25 20:38:09,226 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1176 (Array Int Int)) (v_ArrVal_1175 (Array Int Int))) (<= 0 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem21#1.base| v_ArrVal_1176) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem21#1.base| v_ArrVal_1175) |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) v_ArrVal_1178) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))) (forall ((v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1177 (Array Int Int)) (v_ArrVal_1176 (Array Int Int)) (v_ArrVal_1175 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem21#1.base| v_ArrVal_1175))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~n~0#1.base|) (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem21#1.base| v_ArrVal_1176) .cse0 v_ArrVal_1178) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 4) (select |c_#length| (select (select (store .cse1 .cse0 v_ArrVal_1177) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))))))) is different from false [2021-11-25 20:38:09,236 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1176 (Array Int Int)) (v_ArrVal_1175 (Array Int Int))) (<= 0 (select (select (let ((.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1))) (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_1176) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1175) |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1178))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))) (forall ((v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1177 (Array Int Int)) (v_ArrVal_1176 (Array Int Int)) (v_ArrVal_1175 (Array Int Int))) (let ((.cse5 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse5))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1175))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~n~0#1.base|) .cse5))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1176) .cse3 v_ArrVal_1178) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 4) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_1177) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))))))))) is different from false [2021-11-25 20:38:09,251 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1176 (Array Int Int)) (v_ArrVal_1175 (Array Int Int))) (<= 0 (select (select (let ((.cse0 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base|) .cse0 |c_ULTIMATE.start_main_#t~malloc20#1.offset|)) |c_ULTIMATE.start_main_#t~malloc20#1.base| v_ArrVal_1176) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse0 |c_ULTIMATE.start_main_#t~malloc20#1.base|)) |c_ULTIMATE.start_main_#t~malloc20#1.base| v_ArrVal_1175) |c_ULTIMATE.start_main_~n~0#1.base|) .cse0) v_ArrVal_1178)) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))) (forall ((v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1177 (Array Int Int)) (v_ArrVal_1176 (Array Int Int)) (v_ArrVal_1175 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (let ((.cse3 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1 |c_ULTIMATE.start_main_#t~malloc20#1.base|)) |c_ULTIMATE.start_main_#t~malloc20#1.base| v_ArrVal_1175))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~n~0#1.base|) .cse1 |c_ULTIMATE.start_main_#t~malloc20#1.offset|)) |c_ULTIMATE.start_main_#t~malloc20#1.base| v_ArrVal_1176) .cse2 v_ArrVal_1178) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 4) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_1177) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|)))))))) is different from false [2021-11-25 20:38:13,446 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc20#1.base_42| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc20#1.base_42|) 0)) (and (forall ((v_ArrVal_1169 (Array Int Int)) (v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1167 (Array Int Int)) (v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1166 (Array Int Int)) (v_ArrVal_1176 (Array Int Int)) (v_ArrVal_1175 (Array Int Int))) (<= 0 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_1166))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4))) (store (store (let ((.cse0 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_1167) .cse2 v_ArrVal_1168))) (store .cse0 |c_ULTIMATE.start_main_~n~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1 0))) |v_ULTIMATE.start_main_#t~malloc20#1.base_42| v_ArrVal_1176) (select (select (store (let ((.cse3 (store .cse4 .cse2 v_ArrVal_1169))) (store .cse3 |c_ULTIMATE.start_main_~n~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~n~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc20#1.base_42|))) |v_ULTIMATE.start_main_#t~malloc20#1.base_42| v_ArrVal_1175) |c_ULTIMATE.start_main_~n~0#1.base|) .cse1) v_ArrVal_1178))) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))) (forall ((v_ArrVal_1169 (Array Int Int)) (v_ArrVal_1168 (Array Int Int)) (v_ArrVal_1167 (Array Int Int)) (v_ArrVal_1178 (Array Int Int)) (v_ArrVal_1166 (Array Int Int)) (v_ArrVal_1177 (Array Int Int)) (v_ArrVal_1176 (Array Int Int)) (v_ArrVal_1175 (Array Int Int)) (v_ArrVal_1170 Int)) (let ((.cse11 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_1166))) (let ((.cse6 (+ |c_ULTIMATE.start_main_~n~0#1.offset| 4)) (.cse7 (select (select .cse11 |c_ULTIMATE.start_main_~n~0#1.base|) |c_ULTIMATE.start_main_~n~0#1.offset|))) (let ((.cse9 (store (let ((.cse10 (store .cse11 .cse7 v_ArrVal_1169))) (store .cse10 |c_ULTIMATE.start_main_~n~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~n~0#1.base|) .cse6 |v_ULTIMATE.start_main_#t~malloc20#1.base_42|))) |v_ULTIMATE.start_main_#t~malloc20#1.base_42| v_ArrVal_1175))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~n~0#1.base|) .cse6))) (<= (+ (select (select (store (store (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem15#1.base| v_ArrVal_1167) .cse7 v_ArrVal_1168))) (store .cse5 |c_ULTIMATE.start_main_~n~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~n~0#1.base|) .cse6 0))) |v_ULTIMATE.start_main_#t~malloc20#1.base_42| v_ArrVal_1176) .cse8 v_ArrVal_1178) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|) 4) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc20#1.base_42| v_ArrVal_1170) (select (select (store .cse9 .cse8 v_ArrVal_1177) |c_ULTIMATE.start_main_~root~0#1.base|) |c_ULTIMATE.start_main_~root~0#1.offset|))))))))))) is different from false [2021-11-25 20:38:23,483 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:23,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 479 treesize of output 456 [2021-11-25 20:38:23,542 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:23,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 652352 treesize of output 651368 [2021-11-25 20:38:24,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 651353 treesize of output 651241 [2021-11-25 20:38:25,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 651241 treesize of output 651017 [2021-11-25 20:38:26,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 653769 treesize of output 653709 [2021-11-25 20:38:27,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 654397 treesize of output 654375 [2021-11-25 20:38:28,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 654375 treesize of output 648743 [2021-11-25 20:38:29,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 648743 treesize of output 637479 [2021-11-25 20:38:30,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 639527 treesize of output 638311 [2021-11-25 20:38:36,813 WARN L227 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 1075 DAG size of output: 1074 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:38:37,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 644711 treesize of output 641255 [2021-11-25 20:38:50,508 WARN L227 SmtUtils]: Spent 13.39s on a formula simplification. DAG size of input: 1072 DAG size of output: 1071 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:38:51,012 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-25 20:38:51,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [813002912] [2021-11-25 20:38:51,014 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-25 20:38:51,014 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:38:51,015 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:38:51,015 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:38:51,015 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:38:51,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:38:51,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 20:38:51,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:38:51,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:38:51,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:38:51,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:38:51,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:38:51,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:38:51,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:38:51,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:38:51,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:38:51,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,390 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:38:51,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:38:51,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 21 [2021-11-25 20:38:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 59 [2021-11-25 20:38:51,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,491 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:38:51,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 150 [2021-11-25 20:38:51,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 21 [2021-11-25 20:38:51,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,542 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:51,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 91 [2021-11-25 20:38:51,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2021-11-25 20:38:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-25 20:38:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,677 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,697 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:51,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 158 treesize of output 111 [2021-11-25 20:38:51,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2021-11-25 20:38:51,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,791 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:38:51,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 302 treesize of output 198 [2021-11-25 20:38:51,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:51,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 21 [2021-11-25 20:38:51,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:51,922 INFO L354 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2021-11-25 20:38:51,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 348 treesize of output 235 [2021-11-25 20:38:51,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,966 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:38:51,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 166 [2021-11-25 20:38:51,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:51,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 64 treesize of output 21 [2021-11-25 20:38:52,143 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:52,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:52,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:38:52,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:52,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:52,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:52,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,208 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:38:52,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:52,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:52,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:52,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,244 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,247 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:52,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 168 treesize of output 117 [2021-11-25 20:38:52,268 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:52,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 96 [2021-11-25 20:38:52,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:52,379 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:52,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:52,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-25 20:38:52,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,431 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:52,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 82 [2021-11-25 20:38:52,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2021-11-25 20:38:52,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:52,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,486 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,520 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:38:52,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:38:52,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:52,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:38:52,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,626 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,715 INFO L354 Elim1Store]: treesize reduction 256, result has 10.8 percent of original size [2021-11-25 20:38:52,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 651 treesize of output 438 [2021-11-25 20:38:52,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:52,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:52,834 INFO L354 Elim1Store]: treesize reduction 302, result has 14.7 percent of original size [2021-11-25 20:38:52,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 641 treesize of output 556 [2021-11-25 20:38:52,896 INFO L354 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2021-11-25 20:38:52,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 559 treesize of output 516 [2021-11-25 20:38:54,091 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:38:54,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:38:54,132 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:54,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:54,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:54,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:54,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:54,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,199 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:38:54,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:54,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:54,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:54,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,237 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,240 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:54,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 168 treesize of output 117 [2021-11-25 20:38:54,262 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:54,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 96 [2021-11-25 20:38:54,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:38:54,376 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:54,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:54,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2021-11-25 20:38:54,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,433 INFO L354 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2021-11-25 20:38:54,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 94 [2021-11-25 20:38:54,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,448 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:54,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 75 treesize of output 69 [2021-11-25 20:38:54,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:54,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,489 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,491 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,529 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:38:54,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 285 treesize of output 185 [2021-11-25 20:38:54,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,545 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:54,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 144 [2021-11-25 20:38:54,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:38:54,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,633 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,720 INFO L354 Elim1Store]: treesize reduction 256, result has 10.8 percent of original size [2021-11-25 20:38:54,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 651 treesize of output 438 [2021-11-25 20:38:54,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:54,739 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:54,840 INFO L354 Elim1Store]: treesize reduction 302, result has 14.7 percent of original size [2021-11-25 20:38:54,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 641 treesize of output 556 [2021-11-25 20:38:54,898 INFO L354 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2021-11-25 20:38:54,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 559 treesize of output 516 [2021-11-25 20:38:56,183 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:38:56,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:38:56,229 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:56,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:56,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:56,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:56,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:56,298 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:56,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:56,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:56,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:56,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,358 INFO L354 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2021-11-25 20:38:56,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 168 treesize of output 117 [2021-11-25 20:38:56,381 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:56,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 96 [2021-11-25 20:38:56,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:56,492 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:56,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:56,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-25 20:38:56,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:56,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,561 INFO L354 Elim1Store]: treesize reduction 67, result has 9.5 percent of original size [2021-11-25 20:38:56,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 82 [2021-11-25 20:38:56,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2021-11-25 20:38:56,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,647 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 20:38:56,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:38:56,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:56,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:38:56,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:56,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,775 INFO L354 Elim1Store]: treesize reduction 166, result has 12.6 percent of original size [2021-11-25 20:38:56,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 319 treesize of output 210 [2021-11-25 20:38:56,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:56,805 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:38:56,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 166 [2021-11-25 20:38:56,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:38:57,084 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:57,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:57,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:38:57,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:57,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:57,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:57,154 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:57,176 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:38:57,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:57,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:57,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:57,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,227 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:57,232 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:57,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 168 treesize of output 117 [2021-11-25 20:38:57,261 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:57,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 96 [2021-11-25 20:38:57,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:57,368 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:57,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:57,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-25 20:38:57,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:57,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:57,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:57,430 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:57,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 82 [2021-11-25 20:38:57,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2021-11-25 20:38:57,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:57,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:57,523 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:38:57,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:38:57,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:57,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:38:57,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:57,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,647 INFO L354 Elim1Store]: treesize reduction 166, result has 12.6 percent of original size [2021-11-25 20:38:57,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 319 treesize of output 210 [2021-11-25 20:38:57,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:57,677 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:38:57,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 166 [2021-11-25 20:38:57,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 1 [2021-11-25 20:38:58,113 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:58,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:58,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:38:58,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:58,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:58,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:58,215 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:38:58,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:58,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:58,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:38:58,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,289 INFO L354 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2021-11-25 20:38:58,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 168 treesize of output 117 [2021-11-25 20:38:58,313 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:58,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 96 [2021-11-25 20:38:58,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:38:58,425 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:38:58,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2021-11-25 20:38:58,498 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:58,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:58,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,558 INFO L354 Elim1Store]: treesize reduction 97, result has 11.8 percent of original size [2021-11-25 20:38:58,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 143 treesize of output 105 [2021-11-25 20:38:58,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,573 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:58,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 90 treesize of output 80 [2021-11-25 20:38:58,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,662 INFO L354 Elim1Store]: treesize reduction 102, result has 12.8 percent of original size [2021-11-25 20:38:58,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 300 treesize of output 196 [2021-11-25 20:38:58,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,678 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:58,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 1 case distinctions, treesize of input 189 treesize of output 155 [2021-11-25 20:38:58,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:38:58,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:58,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,794 INFO L354 Elim1Store]: treesize reduction 184, result has 14.0 percent of original size [2021-11-25 20:38:58,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 346 treesize of output 233 [2021-11-25 20:38:58,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:58,825 INFO L354 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2021-11-25 20:38:58,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 235 treesize of output 195 [2021-11-25 20:38:58,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:38:59,107 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:38:59,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:38:59,147 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:38:59,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:38:59,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:59,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:38:59,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:38:59,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:59,213 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:38:59,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:38:59,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:38:59,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:38:59,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:59,255 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:59,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 176 treesize of output 125 [2021-11-25 20:38:59,277 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:38:59,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:38:59,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:38:59,381 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:38:59,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2021-11-25 20:38:59,455 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:38:59,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:38:59,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:59,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:59,499 INFO L354 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2021-11-25 20:38:59,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 136 treesize of output 102 [2021-11-25 20:38:59,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,519 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:38:59,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 94 treesize of output 83 [2021-11-25 20:38:59,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:38:59,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:59,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:59,592 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:38:59,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:38:59,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:38:59,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:38:59,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:59,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,726 INFO L354 Elim1Store]: treesize reduction 184, result has 14.0 percent of original size [2021-11-25 20:38:59,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 346 treesize of output 233 [2021-11-25 20:38:59,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:59,757 INFO L354 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2021-11-25 20:38:59,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 235 treesize of output 195 [2021-11-25 20:38:59,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 1 [2021-11-25 20:39:00,171 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:39:00,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2021-11-25 20:39:00,215 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:39:00,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:39:00,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:00,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:00,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:00,286 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:39:00,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:39:00,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:39:00,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-11-25 20:39:00,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,351 INFO L354 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2021-11-25 20:39:00,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 168 treesize of output 117 [2021-11-25 20:39:00,375 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:39:00,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 96 [2021-11-25 20:39:00,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:39:00,488 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:39:00,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:39:00,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2021-11-25 20:39:00,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,557 INFO L354 Elim1Store]: treesize reduction 97, result has 11.8 percent of original size [2021-11-25 20:39:00,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 143 treesize of output 105 [2021-11-25 20:39:00,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,581 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:00,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 90 treesize of output 80 [2021-11-25 20:39:00,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:39:00,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,675 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 20:39:00,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:39:00,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:39:00,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2021-11-25 20:39:00,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:00,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,798 INFO L354 Elim1Store]: treesize reduction 166, result has 12.6 percent of original size [2021-11-25 20:39:00,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 319 treesize of output 210 [2021-11-25 20:39:00,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:00,827 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:39:00,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 166 [2021-11-25 20:39:00,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 1 [2021-11-25 20:39:01,111 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:39:01,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:39:01,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:39:01,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:01,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:01,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:01,166 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:01,182 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:39:01,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:39:01,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:39:01,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:39:01,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:01,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:01,222 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:01,226 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:01,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 176 treesize of output 125 [2021-11-25 20:39:01,248 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:39:01,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:39:01,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:39:01,366 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:39:01,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2021-11-25 20:39:01,442 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:39:01,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:39:01,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:39:01,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:01,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:01,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:01,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:01,500 INFO L354 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2021-11-25 20:39:01,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 136 treesize of output 102 [2021-11-25 20:39:01,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:01,514 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:01,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 94 treesize of output 83 [2021-11-25 20:39:01,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:01,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:01,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:01,578 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 20:39:01,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 273 treesize of output 173 [2021-11-25 20:39:01,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:01,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 126 [2021-11-25 20:39:01,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2021-11-25 20:39:01,677 INFO L354 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2021-11-25 20:39:01,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 110 [2021-11-25 20:39:01,726 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-25 20:39:01,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 89 [2021-11-25 20:39:01,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:01,880 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:39:01,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-25 20:39:01,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:39:01,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:39:01,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:01,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-25 20:39:01,960 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-25 20:39:01,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 92 [2021-11-25 20:39:01,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 74 [2021-11-25 20:39:01,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 1 [2021-11-25 20:39:02,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:02,026 INFO L354 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2021-11-25 20:39:02,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 176 treesize of output 125 [2021-11-25 20:39:02,049 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:39:02,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 134 treesize of output 110 [2021-11-25 20:39:02,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2021-11-25 20:39:02,158 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:39:02,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2021-11-25 20:39:02,238 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-25 20:39:02,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2021-11-25 20:39:02,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:39:02,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:02,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:02,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:02,307 INFO L354 Elim1Store]: treesize reduction 101, result has 11.4 percent of original size [2021-11-25 20:39:02,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 136 treesize of output 102 [2021-11-25 20:39:02,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:02,323 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:02,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 94 treesize of output 83 [2021-11-25 20:39:02,381 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:39:07,204 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17961#(and (or (and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~root~0#1.offset|) (<= |ULTIMATE.start_main_~root~0#1.offset| 0) (<= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_main_~n~0#1.offset_187| Int) (|v_ULTIMATE.start_main_~n~0#1.base_205| Int)) (and (<= 0 |v_ULTIMATE.start_main_~n~0#1.offset_187|) (= (select |#valid| |v_ULTIMATE.start_main_~n~0#1.base_205|) 1) (= |ULTIMATE.start_main_~n~0#1.offset| (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~n~0#1.base_205|) |v_ULTIMATE.start_main_~n~0#1.offset_187|)) (<= (+ |v_ULTIMATE.start_main_~n~0#1.offset_187| 4) (select |#length| |v_ULTIMATE.start_main_~n~0#1.base_205|)) (= |ULTIMATE.start_main_~n~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~n~0#1.base_205|) |v_ULTIMATE.start_main_~n~0#1.offset_187|)))) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|)) (and (= |ULTIMATE.start_main_~root~0#1.offset| |ULTIMATE.start_main_~n~0#1.offset|) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~root~0#1.offset|) (<= |ULTIMATE.start_main_~root~0#1.offset| 0) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1.base| |ULTIMATE.start_main_~root~0#1.base|))) (or (< |ULTIMATE.start_main_~n~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_main_~n~0#1.base|) (+ |ULTIMATE.start_main_~n~0#1.offset| 4))))' at error location [2021-11-25 20:39:07,204 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:39:07,204 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:39:07,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-25 20:39:07,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296388517] [2021-11-25 20:39:07,204 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-25 20:39:07,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 20:39:07,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:07,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 20:39:07,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=2966, Unknown=18, NotChecked=702, Total=4032 [2021-11-25 20:39:07,206 INFO L87 Difference]: Start difference. First operand 551 states and 775 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:09,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:09,835 INFO L93 Difference]: Finished difference Result 931 states and 1250 transitions. [2021-11-25 20:39:09,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 20:39:09,836 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 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 31 [2021-11-25 20:39:09,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:09,841 INFO L225 Difference]: With dead ends: 931 [2021-11-25 20:39:09,841 INFO L226 Difference]: Without dead ends: 931 [2021-11-25 20:39:09,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 2105 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=612, Invalid=5400, Unknown=18, NotChecked=942, Total=6972 [2021-11-25 20:39:09,844 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 331 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:09,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 477 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 20:39:09,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2021-11-25 20:39:09,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 550. [2021-11-25 20:39:09,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 528 states have (on average 1.4640151515151516) internal successors, (773), 549 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:09,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 773 transitions. [2021-11-25 20:39:09,858 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 773 transitions. Word has length 31 [2021-11-25 20:39:09,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:09,858 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 773 transitions. [2021-11-25 20:39:09,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:09,858 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 773 transitions. [2021-11-25 20:39:09,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:39:09,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:09,859 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:09,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 20:39:10,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-25 20:39:10,074 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:39:10,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:10,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1579515536, now seen corresponding path program 1 times [2021-11-25 20:39:10,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:10,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953480515] [2021-11-25 20:39:10,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:10,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:10,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:10,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:10,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953480515] [2021-11-25 20:39:10,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953480515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:39:10,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:39:10,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 20:39:10,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466899520] [2021-11-25 20:39:10,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:39:10,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:39:10,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:10,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:39:10,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:39:10,431 INFO L87 Difference]: Start difference. First operand 550 states and 773 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:11,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:11,259 INFO L93 Difference]: Finished difference Result 713 states and 965 transitions. [2021-11-25 20:39:11,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 20:39:11,260 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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 31 [2021-11-25 20:39:11,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:11,263 INFO L225 Difference]: With dead ends: 713 [2021-11-25 20:39:11,263 INFO L226 Difference]: Without dead ends: 713 [2021-11-25 20:39:11,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2021-11-25 20:39:11,264 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 192 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:11,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 306 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:39:11,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-11-25 20:39:11,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 548. [2021-11-25 20:39:11,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 526 states have (on average 1.4638783269961977) internal successors, (770), 547 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:11,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 770 transitions. [2021-11-25 20:39:11,273 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 770 transitions. Word has length 31 [2021-11-25 20:39:11,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:11,273 INFO L470 AbstractCegarLoop]: Abstraction has 548 states and 770 transitions. [2021-11-25 20:39:11,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:11,274 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 770 transitions. [2021-11-25 20:39:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:39:11,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:11,275 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:39:11,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-25 20:39:11,275 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:39:11,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:11,275 INFO L85 PathProgramCache]: Analyzing trace with hash -814280057, now seen corresponding path program 1 times [2021-11-25 20:39:11,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:11,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818603969] [2021-11-25 20:39:11,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:11,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:11,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:11,568 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:11,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818603969] [2021-11-25 20:39:11,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818603969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:39:11,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:39:11,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 20:39:11,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892373499] [2021-11-25 20:39:11,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:39:11,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 20:39:11,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:11,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 20:39:11,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:39:11,570 INFO L87 Difference]: Start difference. First operand 548 states and 770 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:12,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:12,552 INFO L93 Difference]: Finished difference Result 726 states and 988 transitions. [2021-11-25 20:39:12,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 20:39:12,553 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 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 31 [2021-11-25 20:39:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:12,556 INFO L225 Difference]: With dead ends: 726 [2021-11-25 20:39:12,556 INFO L226 Difference]: Without dead ends: 726 [2021-11-25 20:39:12,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-11-25 20:39:12,557 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 196 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:12,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 385 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:39:12,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-11-25 20:39:12,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 548. [2021-11-25 20:39:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 526 states have (on average 1.4600760456273765) internal successors, (768), 547 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:12,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 768 transitions. [2021-11-25 20:39:12,570 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 768 transitions. Word has length 31 [2021-11-25 20:39:12,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:12,570 INFO L470 AbstractCegarLoop]: Abstraction has 548 states and 768 transitions. [2021-11-25 20:39:12,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:12,571 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 768 transitions. [2021-11-25 20:39:12,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-25 20:39:12,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:12,571 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:39:12,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-25 20:39:12,572 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:39:12,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:12,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1199158231, now seen corresponding path program 1 times [2021-11-25 20:39:12,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:12,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305255568] [2021-11-25 20:39:12,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:12,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:12,685 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305255568] [2021-11-25 20:39:12,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305255568] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:39:12,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768116975] [2021-11-25 20:39:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:12,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:12,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:39:12,687 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:39:12,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 20:39:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:12,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:39:12,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:39:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:12,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:39:12,999 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-25 20:39:13,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 12 treesize of output 11 [2021-11-25 20:39:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:13,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768116975] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:39:13,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2080269868] [2021-11-25 20:39:13,026 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-25 20:39:13,026 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:39:13,027 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:39:13,027 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:39:13,027 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:39:13,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:39:13,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:39:13,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:13,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:13,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:39:13,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:39:13,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:39:13,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:39:13,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:39:13,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:39:13,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:13,363 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:39:13,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:39:13,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2021-11-25 20:39:13,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 21 [2021-11-25 20:39:13,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:13,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,425 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:13,445 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:39:13,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 150 [2021-11-25 20:39:13,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,481 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:39:13,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 122 [2021-11-25 20:39:13,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 21 [2021-11-25 20:39:13,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:39:13,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:39:13,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:39:13,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:13,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,768 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:13,785 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:39:13,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:39:13,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2021-11-25 20:39:13,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 21 [2021-11-25 20:39:13,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,853 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:13,853 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:13,874 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:39:13,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 150 [2021-11-25 20:39:13,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,909 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:39:13,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 122 [2021-11-25 20:39:13,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 21 [2021-11-25 20:39:14,698 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:39:22,417 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22308#(and (not (= (select |#valid| |ULTIMATE.start_main_~pred~0#1.base|) 1)) (or (not (= |ULTIMATE.start_main_~pred~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~pred~0#1.base| 0))) (= |ULTIMATE.start_main_~root~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~n~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~pred~0#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:39:22,417 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:39:22,417 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:39:22,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2021-11-25 20:39:22,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821559723] [2021-11-25 20:39:22,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:39:22,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:39:22,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:22,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:39:22,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2021-11-25 20:39:22,419 INFO L87 Difference]: Start difference. First operand 548 states and 768 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:22,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:22,873 INFO L93 Difference]: Finished difference Result 589 states and 800 transitions. [2021-11-25 20:39:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:39:22,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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 33 [2021-11-25 20:39:22,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:22,876 INFO L225 Difference]: With dead ends: 589 [2021-11-25 20:39:22,876 INFO L226 Difference]: Without dead ends: 589 [2021-11-25 20:39:22,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=202, Invalid=1058, Unknown=0, NotChecked=0, Total=1260 [2021-11-25 20:39:22,877 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 167 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:22,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 81 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:39:22,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2021-11-25 20:39:22,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 545. [2021-11-25 20:39:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 526 states have (on average 1.4315589353612168) internal successors, (753), 544 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 753 transitions. [2021-11-25 20:39:22,888 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 753 transitions. Word has length 33 [2021-11-25 20:39:22,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:22,888 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 753 transitions. [2021-11-25 20:39:22,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 753 transitions. [2021-11-25 20:39:22,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-25 20:39:22,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:22,889 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:39:22,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 20:39:23,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:23,101 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:39:23,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:23,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1199158232, now seen corresponding path program 1 times [2021-11-25 20:39:23,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:23,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878317979] [2021-11-25 20:39:23,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:23,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:23,354 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:23,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878317979] [2021-11-25 20:39:23,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878317979] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:39:23,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667592322] [2021-11-25 20:39:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:23,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:23,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:39:23,358 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:39:23,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 20:39:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:23,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 20:39:23,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:39:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:23,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:39:24,157 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:39:24,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 19 [2021-11-25 20:39:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:24,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667592322] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:39:24,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1457264921] [2021-11-25 20:39:24,438 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-25 20:39:24,438 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:39:24,439 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:39:24,439 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:39:24,439 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:39:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:39:24,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:24,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 21 [2021-11-25 20:39:24,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:24,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:39:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 21 [2021-11-25 20:39:24,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:39:24,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:39:24,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:39:24,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:24,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:39:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,837 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:24,859 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:39:24,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:39:24,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2021-11-25 20:39:24,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 21 [2021-11-25 20:39:24,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,923 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:24,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:24,944 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:39:24,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 150 [2021-11-25 20:39:24,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,983 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:39:24,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 122 [2021-11-25 20:39:24,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:24,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 21 [2021-11-25 20:39:25,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2021-11-25 20:39:25,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:39:25,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-11-25 20:39:25,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:39:25,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:25,274 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:39:25,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 117 [2021-11-25 20:39:25,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2021-11-25 20:39:25,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 21 [2021-11-25 20:39:25,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:25,348 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:25,366 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:39:25,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 194 treesize of output 142 [2021-11-25 20:39:25,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,403 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:39:25,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 124 treesize of output 108 [2021-11-25 20:39:25,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:25,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 54 treesize of output 21 [2021-11-25 20:39:26,128 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:39:34,398 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23688#(and (< (select |#length| |ULTIMATE.start_main_~pred~0#1.base|) (+ |ULTIMATE.start_main_~pred~0#1.offset| 4)) (or (not (= |ULTIMATE.start_main_~pred~0#1.offset| 0)) (not (= |ULTIMATE.start_main_~pred~0#1.base| 0))) (= |ULTIMATE.start_main_~root~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~n~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~pred~0#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:39:34,398 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:39:34,398 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:39:34,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2021-11-25 20:39:34,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978918066] [2021-11-25 20:39:34,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:39:34,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-25 20:39:34,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:39:34,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-25 20:39:34,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=1589, Unknown=0, NotChecked=0, Total=1980 [2021-11-25 20:39:34,400 INFO L87 Difference]: Start difference. First operand 545 states and 753 transitions. Second operand has 20 states, 19 states have (on average 4.842105263157895) internal successors, (92), 19 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:35,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:39:35,856 INFO L93 Difference]: Finished difference Result 681 states and 910 transitions. [2021-11-25 20:39:35,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 20:39:35,856 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.842105263157895) internal successors, (92), 19 states have internal predecessors, (92), 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 33 [2021-11-25 20:39:35,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:39:35,859 INFO L225 Difference]: With dead ends: 681 [2021-11-25 20:39:35,859 INFO L226 Difference]: Without dead ends: 681 [2021-11-25 20:39:35,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1291 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=627, Invalid=2679, Unknown=0, NotChecked=0, Total=3306 [2021-11-25 20:39:35,860 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 790 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:39:35,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 153 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:39:35,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2021-11-25 20:39:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 609. [2021-11-25 20:39:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 592 states have (on average 1.427364864864865) internal successors, (845), 608 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 845 transitions. [2021-11-25 20:39:35,872 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 845 transitions. Word has length 33 [2021-11-25 20:39:35,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:39:35,873 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 845 transitions. [2021-11-25 20:39:35,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.842105263157895) internal successors, (92), 19 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:39:35,873 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 845 transitions. [2021-11-25 20:39:35,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 20:39:35,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:39:35,874 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:39:35,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-25 20:39:36,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:36,090 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr36REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 52 more)] === [2021-11-25 20:39:36,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:39:36,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1600783936, now seen corresponding path program 2 times [2021-11-25 20:39:36,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:39:36,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761759567] [2021-11-25 20:39:36,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:39:36,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:39:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:39:36,566 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:36,566 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:39:36,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761759567] [2021-11-25 20:39:36,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761759567] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:39:36,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792092199] [2021-11-25 20:39:36,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:39:36,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:39:36,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:39:36,569 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:39:36,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85359965-d03b-4bdd-b68b-fdc5b73207c3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 20:39:36,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:39:36,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:39:36,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-25 20:39:36,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:39:36,952 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:39:36,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 20:39:37,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:37,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:39:37,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:39:37,202 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 20:39:37,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 41 [2021-11-25 20:39:37,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2021-11-25 20:39:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:37,375 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:39:37,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 81 treesize of output 62 [2021-11-25 20:39:37,392 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:39:37,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 44 treesize of output 41 [2021-11-25 20:39:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:39:38,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:40:04,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17138 treesize of output 17090 [2021-11-25 20:40:09,789 INFO L354 Elim1Store]: treesize reduction 1163, result has 41.1 percent of original size [2021-11-25 20:40:09,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 16 new quantified variables, introduced 107 case distinctions, treesize of input 931223 treesize of output 858373 [2021-11-25 20:41:15,459 WARN L227 SmtUtils]: Spent 1.09m on a formula simplification. DAG size of input: 1923 DAG size of output: 1647 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:41:25,992 WARN L227 SmtUtils]: Spent 10.52s on a formula simplification. DAG size of input: 1610 DAG size of output: 1604 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:41:26,336 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:26,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 368966 treesize of output 368290 [2021-11-25 20:41:29,877 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:41:29,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 176179 treesize of output 175247 [2021-11-25 20:41:34,386 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 20:41:34,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 13 [2021-11-25 20:41:40,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-25 20:41:41,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-25 20:41:41,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-25 20:41:41,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-25 20:41:41,946 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-25 20:41:41,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 17 [2021-11-25 20:41:42,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-25 20:42:12,317 WARN L227 SmtUtils]: Spent 14.04s on a formula simplification. DAG size of input: 1520 DAG size of output: 1520 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:42:37,008 WARN L227 SmtUtils]: Spent 14.02s on a formula simplification. DAG size of input: 1517 DAG size of output: 1517 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:42:58,999 WARN L227 SmtUtils]: Spent 13.98s on a formula simplification. DAG size of input: 1508 DAG size of output: 1511 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:43:31,671 WARN L227 SmtUtils]: Spent 22.00s on a formula simplification. DAG size of input: 1507 DAG size of output: 1508 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:43:50,549 WARN L227 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 1506 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:44:23,075 WARN L227 SmtUtils]: Spent 19.22s on a formula simplification. DAG size of input: 1501 DAG size of output: 1501 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:45:18,506 WARN L227 SmtUtils]: Spent 42.18s on a formula simplification. DAG size of input: 1474 DAG size of output: 1474 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:46:14,908 WARN L227 SmtUtils]: Spent 5.47s on a formula simplification that was a NOOP. DAG size: 1498 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:46:29,255 WARN L227 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 1498 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:46:48,010 WARN L227 SmtUtils]: Spent 9.07s on a formula simplification. DAG size of input: 875 DAG size of output: 876 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:47:35,568 WARN L227 SmtUtils]: Spent 31.67s on a formula simplification. DAG size of input: 841 DAG size of output: 841 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:48:25,059 WARN L227 SmtUtils]: Spent 10.84s on a formula simplification. DAG size of input: 862 DAG size of output: 866 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)