./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_insert_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_insert_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93d1510274ba16ddd1276e8e93ff0a644bf6fb4a262c4c9dde32fe8591d5ce8c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:03:09,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:03:09,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:03:09,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:03:09,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:03:09,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:03:09,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:03:09,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:03:09,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:03:09,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:03:09,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:03:09,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:03:09,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:03:09,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:03:09,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:03:09,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:03:09,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:03:09,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:03:09,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:03:09,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:03:09,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:03:09,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:03:09,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:03:09,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:03:09,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:03:09,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:03:09,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:03:09,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:03:09,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:03:09,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:03:09,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:03:09,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:03:09,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:03:09,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:03:09,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:03:09,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:03:09,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:03:09,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:03:09,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:03:09,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:03:09,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:03:09,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:03:09,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:03:09,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:03:09,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:03:09,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:03:09,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:03:09,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:03:09,436 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:03:09,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:03:09,436 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:03:09,436 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:03:09,437 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:03:09,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:03:09,437 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:03:09,437 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:03:09,438 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:03:09,438 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:03:09,438 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:03:09,438 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:03:09,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:03:09,439 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:03:09,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:03:09,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:03:09,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:03:09,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:03:09,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:03:09,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:03:09,441 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:03:09,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:03:09,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:03:09,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:03:09,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:03:09,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:03:09,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:03:09,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:03:09,442 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:03:09,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:03:09,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:03:09,443 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:03:09,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:03:09,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:03:09,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:03:09,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93d1510274ba16ddd1276e8e93ff0a644bf6fb4a262c4c9dde32fe8591d5ce8c [2022-11-22 02:03:09,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:03:09,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:03:09,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:03:09,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:03:09,810 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:03:09,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-simple/dll2n_insert_equal.i [2022-11-22 02:03:12,934 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:03:13,228 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:03:13,235 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/sv-benchmarks/c/list-simple/dll2n_insert_equal.i [2022-11-22 02:03:13,252 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/data/40ff94b54/1228fd320ad14056809930ca1358ce36/FLAG74a9bbcb4 [2022-11-22 02:03:13,271 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/data/40ff94b54/1228fd320ad14056809930ca1358ce36 [2022-11-22 02:03:13,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:03:13,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:03:13,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:03:13,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:03:13,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:03:13,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df9ac7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13, skipping insertion in model container [2022-11-22 02:03:13,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:03:13,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:03:13,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/sv-benchmarks/c/list-simple/dll2n_insert_equal.i[24706,24719] [2022-11-22 02:03:13,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:03:13,741 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:03:13,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/sv-benchmarks/c/list-simple/dll2n_insert_equal.i[24706,24719] [2022-11-22 02:03:13,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:03:13,838 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:03:13,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13 WrapperNode [2022-11-22 02:03:13,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:03:13,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:03:13,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:03:13,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:03:13,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,888 INFO L138 Inliner]: procedures = 127, calls = 44, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 136 [2022-11-22 02:03:13,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:03:13,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:03:13,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:03:13,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:03:13,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,933 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:03:13,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:03:13,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:03:13,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:03:13,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (1/1) ... [2022-11-22 02:03:13,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:03:13,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:13,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:03:14,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:03:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-22 02:03:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-22 02:03:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:03:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:03:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:03:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:03:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:03:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:03:14,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:03:14,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:03:14,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:03:14,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:03:14,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:03:14,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:03:14,261 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:03:14,263 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:03:14,329 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-22 02:03:14,586 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:03:14,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:03:14,723 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 02:03:14,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:14 BoogieIcfgContainer [2022-11-22 02:03:14,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:03:14,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:03:14,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:03:14,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:03:14,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:03:13" (1/3) ... [2022-11-22 02:03:14,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f806985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:03:14, skipping insertion in model container [2022-11-22 02:03:14,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:13" (2/3) ... [2022-11-22 02:03:14,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f806985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:03:14, skipping insertion in model container [2022-11-22 02:03:14,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:14" (3/3) ... [2022-11-22 02:03:14,736 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_insert_equal.i [2022-11-22 02:03:14,758 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:03:14,758 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:03:14,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:03:14,808 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b83e65d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:03:14,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:03:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 15 states have (on average 1.6) internal successors, (24), 17 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:03:14,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:14,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:14,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:03:14,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:14,828 INFO L85 PathProgramCache]: Analyzing trace with hash -2126926048, now seen corresponding path program 1 times [2022-11-22 02:03:14,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:14,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801673423] [2022-11-22 02:03:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:14,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:15,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:15,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801673423] [2022-11-22 02:03:15,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801673423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:15,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:15,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:03:15,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212170517] [2022-11-22 02:03:15,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:15,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:15,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:15,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:15,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:15,373 INFO L87 Difference]: Start difference. First operand has 19 states, 15 states have (on average 1.6) internal successors, (24), 17 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-11-22 02:03:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:15,583 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2022-11-22 02:03:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:15,585 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 [2022-11-22 02:03:15,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:15,592 INFO L225 Difference]: With dead ends: 37 [2022-11-22 02:03:15,593 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 02:03:15,595 INFO L412 NwaCegarLoop]: 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 [2022-11-22 02:03:15,599 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:15,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 32 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:03:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 02:03:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2022-11-22 02:03:15,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-11-22 02:03:15,652 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2022-11-22 02:03:15,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:15,652 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-22 02:03:15,652 INFO L496 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) [2022-11-22 02:03:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-11-22 02:03:15,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:03:15,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:15,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:15,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:03:15,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:03:15,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:15,659 INFO L85 PathProgramCache]: Analyzing trace with hash -177876721, now seen corresponding path program 1 times [2022-11-22 02:03:15,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:15,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223203205] [2022-11-22 02:03:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:15,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:16,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:16,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223203205] [2022-11-22 02:03:16,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223203205] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:16,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849926466] [2022-11-22 02:03:16,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:16,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:16,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:16,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:16,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:03:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:16,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:03:16,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:16,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:16,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:16,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849926466] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:16,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1339510167] [2022-11-22 02:03:16,413 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 02:03:16,413 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:03:16,417 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:03:16,422 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:03:16,423 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:03:16,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,511 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:03:16,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-22 02:03:16,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,545 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:03:16,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 02:03:16,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,641 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:16,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-22 02:03:16,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:03:16,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 37 treesize of output 28 [2022-11-22 02:03:16,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-22 02:03:16,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:03:16,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:16,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:03:17,072 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-22 02:03:17,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 case distinctions, treesize of input 275 treesize of output 284 [2022-11-22 02:03:17,194 INFO L321 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2022-11-22 02:03:17,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 278 treesize of output 294 [2022-11-22 02:03:17,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:17,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:17,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:17,871 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 02:03:17,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 283 treesize of output 269 [2022-11-22 02:03:17,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:17,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:17,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:17,971 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 02:03:17,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 287 treesize of output 272 [2022-11-22 02:03:18,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 267 [2022-11-22 02:03:18,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:18,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:18,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:18,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:18,164 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-22 02:03:18,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 423 treesize of output 446 [2022-11-22 02:03:18,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 288 treesize of output 279 [2022-11-22 02:03:18,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:18,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:18,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:18,310 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-22 02:03:18,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 410 treesize of output 434 [2022-11-22 02:03:18,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,430 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-22 02:03:18,431 INFO L350 Elim1Store]: Elim1 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 4 case distinctions, treesize of input 415 treesize of output 370 [2022-11-22 02:03:18,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 431 treesize of output 386 [2022-11-22 02:03:18,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 366 treesize of output 362 [2022-11-22 02:03:18,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 02:03:18,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 418 treesize of output 365 [2022-11-22 02:03:18,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:18,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 345 treesize of output 331 [2022-11-22 02:03:19,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 02:03:19,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:19,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:19,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:19,297 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 02:03:19,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-22 02:03:19,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:19,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:19,378 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 02:03:19,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-22 02:03:19,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 02:03:19,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 02:03:19,520 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 02:03:19,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-22 02:03:19,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-22 02:03:19,615 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 02:03:19,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 143 treesize of output 122 [2022-11-22 02:03:19,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 78 [2022-11-22 02:03:19,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:19,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:19,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:19,822 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 02:03:19,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-22 02:03:19,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:19,878 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 02:03:19,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-22 02:03:19,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:19,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:03:20,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:20,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:20,030 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:03:20,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:20,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:20,070 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:03:21,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1339510167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:21,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:03:21,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 8 [2022-11-22 02:03:21,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000606958] [2022-11-22 02:03:21,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:21,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:03:21,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:21,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:03:21,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:03:21,064 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) 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) [2022-11-22 02:03:21,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:21,537 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2022-11-22 02:03:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:03:21,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) 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 [2022-11-22 02:03:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:21,538 INFO L225 Difference]: With dead ends: 19 [2022-11-22 02:03:21,538 INFO L226 Difference]: Without dead ends: 14 [2022-11-22 02:03:21,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:03:21,539 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:21,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:03:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-22 02:03:21,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-22 02:03:21,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 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) [2022-11-22 02:03:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-22 02:03:21,547 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 11 [2022-11-22 02:03:21,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:21,548 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-22 02:03:21,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) 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) [2022-11-22 02:03:21,548 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-11-22 02:03:21,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:03:21,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:21,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:21,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:21,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-22 02:03:21,749 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:03:21,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:21,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1298275819, now seen corresponding path program 1 times [2022-11-22 02:03:21,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:21,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466217049] [2022-11-22 02:03:21,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:21,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:21,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:03:21,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:21,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466217049] [2022-11-22 02:03:21,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466217049] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:21,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718592302] [2022-11-22 02:03:21,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:21,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:21,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:21,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:21,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a39b30-d2c5-48aa-90f8-389a21a06614/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:03:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:22,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:03:22,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:22,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:03:22,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:22,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:03:22,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718592302] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:22,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2006105479] [2022-11-22 02:03:22,195 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 02:03:22,195 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:03:22,196 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:03:22,196 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:03:22,196 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:03:22,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,229 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:03:22,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 02:03:22,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,241 INFO L350 Elim1Store]: Elim1 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 [2022-11-22 02:03:22,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,297 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:22,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-22 02:03:22,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:03:22,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:03:22,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:03:22,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 37 treesize of output 28 [2022-11-22 02:03:22,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:22,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-22 02:03:22,571 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-22 02:03:22,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 case distinctions, treesize of input 275 treesize of output 284 [2022-11-22 02:03:22,678 INFO L321 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2022-11-22 02:03:22,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 278 treesize of output 294 [2022-11-22 02:03:23,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,455 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 02:03:23,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 387 treesize of output 365 [2022-11-22 02:03:23,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,552 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 02:03:23,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 391 treesize of output 368 [2022-11-22 02:03:23,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 371 [2022-11-22 02:03:23,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:23,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:23,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:23,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:23,728 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-22 02:03:23,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 527 treesize of output 550 [2022-11-22 02:03:23,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 398 treesize of output 389 [2022-11-22 02:03:23,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:23,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:23,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:23,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:23,879 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-22 02:03:23,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 520 treesize of output 549 [2022-11-22 02:03:24,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 49 [2022-11-22 02:03:24,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 02:03:24,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:24,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-22 02:03:24,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:24,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:24,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:24,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:24,393 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-22 02:03:24,394 INFO L350 Elim1Store]: Elim1 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 4 case distinctions, treesize of input 531 treesize of output 478 [2022-11-22 02:03:24,576 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-22 02:03:24,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 628 treesize of output 565 [2022-11-22 02:03:24,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 474 treesize of output 470 [2022-11-22 02:03:24,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 548 treesize of output 504 [2022-11-22 02:03:25,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:25,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:25,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:25,119 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 02:03:25,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-22 02:03:25,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:25,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:25,192 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 02:03:25,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-22 02:03:25,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:03:25,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:03:25,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 02:03:25,302 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 02:03:25,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-22 02:03:25,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-22 02:03:25,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-22 02:03:25,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-22 02:03:25,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-22 02:03:25,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:25,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:25,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:03:25,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:25,593 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 02:03:25,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-22 02:03:25,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:25,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:25,642 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 02:03:25,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-22 02:03:26,692 INFO L321 Elim1Store]: treesize reduction 175, result has 33.7 percent of original size [2022-11-22 02:03:26,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 282 treesize of output 311 [2022-11-22 02:03:27,190 INFO L321 Elim1Store]: treesize reduction 203, result has 23.1 percent of original size [2022-11-22 02:03:27,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 167 treesize of output 168 [2022-11-22 02:03:27,349 INFO L321 Elim1Store]: treesize reduction 52, result has 33.3 percent of original size [2022-11-22 02:03:27,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 36 [2022-11-22 02:03:27,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:03:27,456 INFO L321 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2022-11-22 02:03:27,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 38 [2022-11-22 02:03:27,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 02:03:27,528 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:27,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 42 [2022-11-22 02:03:27,859 INFO L321 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2022-11-22 02:03:27,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 100 treesize of output 88 [2022-11-22 02:03:27,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:03:27,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:03:27,991 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 02:03:27,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 24 [2022-11-22 02:03:28,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:28,042 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:28,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 131 [2022-11-22 02:03:28,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:28,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:28,661 INFO L321 Elim1Store]: treesize reduction 72, result has 49.7 percent of original size [2022-11-22 02:03:28,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 348 treesize of output 402 [2022-11-22 02:03:28,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:28,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:28,994 INFO L321 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2022-11-22 02:03:28,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 257 treesize of output 233 [2022-11-22 02:03:29,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:03:29,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 1 [2022-11-22 02:03:29,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:36,050 WARN L233 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 75 DAG size of output: 46 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:03:36,051 INFO L321 Elim1Store]: treesize reduction 151, result has 39.4 percent of original size [2022-11-22 02:03:36,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 2291 treesize of output 2121 [2022-11-22 02:03:36,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-22 02:03:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:36,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 141 [2022-11-22 02:03:36,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 88 [2022-11-22 02:03:36,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:03:37,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:03:37,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:37,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:37,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:37,370 INFO L321 Elim1Store]: treesize reduction 49, result has 19.7 percent of original size [2022-11-22 02:03:37,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 167 treesize of output 315 [2022-11-22 02:03:37,671 INFO L321 Elim1Store]: treesize reduction 177, result has 15.7 percent of original size [2022-11-22 02:03:37,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 15 case distinctions, treesize of input 197 treesize of output 359 [2022-11-22 02:03:37,743 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:03:37,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:37,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:37,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:37,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:37,902 INFO L217 Elim1Store]: Index analysis took 107 ms [2022-11-22 02:03:37,952 INFO L321 Elim1Store]: treesize reduction 61, result has 16.4 percent of original size [2022-11-22 02:03:37,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 188 treesize of output 332 [2022-11-22 02:03:38,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,164 INFO L321 Elim1Store]: treesize reduction 61, result has 16.4 percent of original size [2022-11-22 02:03:38,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 167 treesize of output 315 [2022-11-22 02:03:38,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:38,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 296 [2022-11-22 02:03:38,244 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:03:38,759 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:03:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:38,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 763 treesize of output 760 [2022-11-22 02:03:38,984 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:03:39,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:03:39,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 107 [2022-11-22 02:03:39,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 108 [2022-11-22 02:03:39,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:03:39,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-22 02:03:39,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-22 02:03:39,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-22 02:03:45,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:45,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:31,987 WARN L233 SmtUtils]: Spent 46.44s on a formula simplification. DAG size of input: 105 DAG size of output: 50 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:04:31,988 INFO L321 Elim1Store]: treesize reduction 348, result has 19.3 percent of original size [2022-11-22 02:04:31,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 16 new quantified variables, introduced 30 case distinctions, treesize of input 2343 treesize of output 14720 [2022-11-22 02:05:40,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:46,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:46,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:46,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:46,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:46,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:46,815 INFO L217 Elim1Store]: Index analysis took 504 ms